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Journal articles on the topic 'Spin-valve system'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Cai, Weiran, Torsten Schmidt, Udo Jorges, and Frank Ellinger. "A Feedback Spin-Valve Memristive System." IEEE Transactions on Circuits and Systems I: Regular Papers 59, no. 10 (2012): 2405–12. http://dx.doi.org/10.1109/tcsi.2012.2189043.

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2

Zhu, Huachen, Zhenghong Qian, Jiaofeng Zhang, Yucheng Sun, Ru Bai, and Jianguo Zhu. "Temperature relevant performance and calibration of spin-valve sensor." Sensor Review 39, no. 6 (2019): 881–86. http://dx.doi.org/10.1108/sr-01-2019-0005.

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Purpose It has been noted that the spin-valve sensor exhibits lower sensitivity with higher temperature because of the variation of GMR ratio, which could lead to the measurement error in applications where working temperature changes largely over seasons or times. This paper aims to investigate and compensate the temperature effect of the spin-valve sensor. Design/methodology/approach A spin-valve sensor is fabricated based on microelectronic process, and its temperature relevant properties are investigated, in which the transfer curves are acquired within a temperature range of −50°C to 125°

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3

Jafari, M. A., M. Wawrzyniak-Adamczewska, S. Stagraczyński, A. Dyrdal, and J. Barnaś. "Spin valve effect in two-dimensional VSe2 system." Journal of Magnetism and Magnetic Materials 548 (April 2022): 168921. http://dx.doi.org/10.1016/j.jmmm.2021.168921.

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4

Lu Wen-Tian, Yao Chun-Wei, YAN Zhi, and YUAN Zhe. "Ultrafast Spin Dynamics Research on Laser-Induced Spin Valve Structures." Acta Physica Sinica 74, no. 6 (2025): 0. https://doi.org/10.7498/aps.74.20241744.

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The discovery of ultrafast demagnetization has introduced a new approach for generating ultrafast spin currents using an ultrashort laser, potentially enabling faster manipulation of material magnetism. This has sparked research into the transport mechanisms of ultrafast spin currents. However, the underlying processes remain poorly understood, particularly the factors influencing interlayer spin transfer. This study employs a superdiffusive spin transport model to investigate the ultrafast spin transport mechanisms in the Ni/Ru/Fe spin valve system, with a particular focus on how interlayer s

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5

SU, GANG, and MASUO SUZUKI. "JOSEPHSON-LIKE EFFECT IN A SPIN VALVE." Modern Physics Letters B 16, no. 19 (2002): 711–20. http://dx.doi.org/10.1142/s0217984902004159.

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The possibility of the Josephson-like effect in a spin valve system is discussed. It is argued that in the absence of the bias voltage, the system can have dc currents flowing through the tunneling junction under certain conditions when alignments of spins in two ferromagnetic (FM) layers separated by an insulating layer, are parallel. The system may have ac currents flowing through the junction when spins in the two FM layers are tilting aligned or antialigned, this being a result quite different from the Josephson effect in superconducting junctions. In the presence of the bias voltage, the

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6

Childress, J. R., O. Durand, A. Schuhl, and J. ‐M George. "New epitaxial multilayer system for spin‐valve magnetic sensors." Applied Physics Letters 63, no. 14 (1993): 1996–98. http://dx.doi.org/10.1063/1.110626.

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7

Yang, Dexin, Peng Zhao, Chen Yang, Tao Yang, Yulong Chen, and Dexuan Huo. "A spin-valve-system in ferromagnetic semiconductor Sr2FeMoO6/SrMoO4." Ceramics International 45, no. 8 (2019): 10072–79. http://dx.doi.org/10.1016/j.ceramint.2019.02.053.

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8

Kokado, Satoshi. "Conductivity at Each Layer of a Spin Valve System." Japanese Journal of Applied Physics 40, Part 1, No. 5A (2001): 3183–87. http://dx.doi.org/10.1143/jjap.40.3183.

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9

Ramli, Euis Sustini, Nurlaela Rauf, and Mitra Djamal. "Giant Magnetoresistance in FeMn/NiCoFe/Cu/NiCoFe Spin Valve Prepared by Opposed Target Magnetron Sputtering." Advanced Materials Research 979 (June 2014): 85–89. http://dx.doi.org/10.4028/www.scientific.net/amr.979.85.

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The giant magnetoresistance (GMR) effect in FeMn/NiCoFe/Cu/NiCoFe spin valve prepared by dc opposed target magnetron sputtering is reported. The spin valve thin films are characterized by Scanning Electron Microscopy (SEM), Vibrating Sample Magnetometer (VSM) and magnetoresistance ratio measurements. All measurements are performed in room temperature. The inserted 45 mm thickness FeMn layer to the NiCoFe/Cu/NiCoFe system can increase the GMR ratio up to 32.5%. The coercive field to be increased is compared with different FeMn layer thickness. Furthermore, the coercive field (Hc) decreases with

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10

Tetsukawa, H. "Spin-Valve Head With Corrosion Resistance for Tape Recording System." IEEE Transactions on Magnetics 40, no. 6 (2004): 3541–44. http://dx.doi.org/10.1109/tmag.2004.835672.

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11

Gardelis, S., C. G. Smith, W. Y. Lee, et al. "Spin-valve effects in a two-dimensional electron gas system." Physica E: Low-dimensional Systems and Nanostructures 6, no. 1-4 (2000): 718–21. http://dx.doi.org/10.1016/s1386-9477(99)00180-0.

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12

TANG, LING, and SHUAI WANG. "FIRST PRINCIPLES NON-COLLINEAR TRANSPORT CALCULATION AND INTERFACIAL SPIN-FLIPPING OF Cu/Co MULTILAYERS." Modern Physics Letters B 22, no. 26 (2008): 2553–60. http://dx.doi.org/10.1142/s0217984908017138.

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In this paper, the first principle non-collinear transport calculation for Cu/Co (111) including interfacial spin-flipping was performed. We modeled spin-flipping at the interface by assuming a non-collinear magnetic structure with random magnetization orientation which satisfied the Gaussian distribution along the average magnetization direction. The relationship between spin-dependent conductance including interfacial spin-flipping and random magnetization orientation distribution width was obtained. For certain distribution width, our defined spin-flipping ratio coincides with the range of

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13

Zou, Fei, Lin Zhu, Gaoying Gao, Menghao Wu, and Kailun Yao. "Temperature-controlled spin filter and spin valve based on Fe-doped monolayer MoS2." Physical Chemistry Chemical Physics 18, no. 8 (2016): 6053–58. http://dx.doi.org/10.1039/c5cp05001d.

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The thermal transport properties of an iron-doped molybdenum disulfide system were explored theoretically using the density functional theory calculations combined with the Keldysh non-equilibrium Green's function approach.

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14

Tarun, Jean, Shaoyun Huang, Yasuhiro Fukuma, et al. "Temperature Evolution of Spin-Polarized Electron Tunneling in Silicon Nanowire–Permalloy Lateral Spin Valve System." Applied Physics Express 5, no. 4 (2012): 045001. http://dx.doi.org/10.1143/apex.5.045001.

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15

Roychowdhury, A., P. K. Ghose, T. K. Dalui, S. Majumdar, and S. Giri. "Revealing spin-valve-like and exchange bias effect in Co₃Sn_1.9In_0.1S₂ crystal." Applied Physics Letters 122, no. 2 (2023): 022403. http://dx.doi.org/10.1063/5.0132213.

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We report on sharp spin-valve-like magnetoresistance (MR) below ferromagnetic order ( TC), which has not been discussed in the pristine as well as doped crystals. In addition, typical manifestation of exchange bias (EB) effect is also observed by systematic shifts of the loop observed in MR driven by the cooling field. The EB effect appears below a characteristic temperature ( TA), below which ferromagnetic and antiferromagnetic phases have been suggested to coexist. As a result of In doping, the sharp spin-valve-like evidence and EB effect over a wide temperature range, which are observed eve

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16

van der Graaf, A., A. R. Ball, and J. C. S. Kools. "Magnetic alignment in spin-valve system studied by polarized neutron reflectometry." Journal of Magnetism and Magnetic Materials 165, no. 1-3 (1997): 479–83. http://dx.doi.org/10.1016/s0304-8853(96)00597-5.

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17

Ben Youssef, J., and A. Layadi. "Ferromagnetic resonance study of Permalloy/Cu/Co/NiO spin valve system." Journal of Applied Physics 108, no. 5 (2010): 053913. http://dx.doi.org/10.1063/1.3476269.

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18

Yoon, S. Y., D. H. Lee, K. H. Jeong, D. H. Yoon, and Su Jeong Suh. "Origin of Thermal Stability of IrMn Based Specular Spin Valve Type GMR Multilayer." Materials Science Forum 449-452 (March 2004): 1065–68. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.1065.

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By using the sputtering process, we made the IrMn based specular spin valve system, whose nano-oxide layer (NOL) was formed by natural oxidation. After thermal annealing at 305 and 410 °C, the thermal stability of the specular spin valve was observed. We found that the highest magnetoresistance (MR) ratio of about 12 % MR was produced after optimum annealing at 305 °C but the sample annealed at 410 °C also had a high MR ratio about 10 %. It is superior to other studies at this temperature. Based on the AES and XPS results, we could conclude that this enhanced thermal stability was due to the s

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19

Lu, Haipeng, Jingying Wang, Chuanxiao Xiao, et al. "Spin-dependent charge transport through 2D chiral hybrid lead-iodide perovskites." Science Advances 5, no. 12 (2019): eaay0571. http://dx.doi.org/10.1126/sciadv.aay0571.

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Chiral-induced spin selectivity (CISS) occurs when the chirality of the transporting medium selects one of the two spin ½ states to transport through the media while blocking the other. Monolayers of chiral organic molecules demonstrate CISS but are limited in their efficiency and utility by the requirement of a monolayer to preserve the spin selectivity. We demonstrate CISS in a system that integrates an inorganic framework with a chiral organic sublattice inducing chirality to the hybrid system. Using magnetic conductive-probe atomic force microscopy, we find that oriented chiral 2D-layered

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20

Matsumoto, Hiroki, Shinya Ota, Tomohiro Koyama, and Daichi Chiba. "Biaxial strain sensing using a Pd/Co-based perpendicular flexible spin valve." Applied Physics Express 15, no. 3 (2022): 033004. http://dx.doi.org/10.35848/1882-0786/ac5725.

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Abstract We fabricated a Pd/Co-based spin valve structure, which has in-plane (IP) free and out-of-plane (OOP) fixed layers, on a flexible substrate. By applying %-order biaxial tensile strain to the substrate, a spin reorientation transition from IP to OOP occurs in the free layer, resulting in a drastic change in the shape of the magnetoresistance curve. This change is reversible with increasing and decreasing strain. We suggest that our system could be utilized as an in-plane “direction-independent” strain sensor and as a pressure detector.

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21

Svalov, A. V., A. N. Sorokin, P. A. Savin, et al. "Co/Cu/Co Pseudo Spin-Valve System Prepared by Magnetron Sputtering with Different Argon Pressure." Key Engineering Materials 644 (May 2015): 211–14. http://dx.doi.org/10.4028/www.scientific.net/kem.644.211.

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Thin Co films were fabricated by DC magnetron sputtering. The effect of argon pressure on the microstructure, surface morphology and magnetic properties of the samples was systematically studied. It was found that with the increase of argon pressure, the sharpness of the crystalline texture of the samples declines, the roughness of film surfaces and the coercivity of the films increase. Based on these results, a Co/Cu/Co pseudo spin-valve system was designed and the corresponding structures were fabricated. The difference in coercivity of magnetic layers was obtained by deposition of the Co la

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22

Kamashev, Andrey A., Aidar A. Validov, Joachim Schumann, et al. "Increasing the performance of a superconducting spin valve using a Heusler alloy." Beilstein Journal of Nanotechnology 9 (June 12, 2018): 1764–69. http://dx.doi.org/10.3762/bjnano.9.167.

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We have studied superconducting properties of spin-valve thin-layer heterostructures CoO x /F1/Cu/F2/Cu/Pb in which the ferromagnetic F1 layer was made of Permalloy while for the F2 layer we have taken a specially prepared film of the Heusler alloy Co2Cr1− x Fe x Al with a small degree of spin polarization of the conduction band. The heterostructures demonstrate a significant superconducting spin-valve effect, i.e., a complete switching on and off of the superconducting current flowing through the system by manipulating the mutual orientations of the magnetization of the F1 and F2 layers. The

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23

Li, Haohua, M. Boucinha, P. P. Freitas, J. Gaspar, V. Chu, and J. P. Conde. "Microelectromechanical system microbridge deflection monitoring using integrated spin valve sensors and micromagnets." Journal of Applied Physics 91, no. 10 (2002): 7774. http://dx.doi.org/10.1063/1.1451896.

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24

CUI, J., Y. H. YANG, and J. WANG. "BIAS DEPENDENCE OF SPIN TRANSFER TORQUE IN A MAGNETIC TUNNEL JUNCTION." International Journal of Modern Physics B 23, no. 05 (2009): 695–702. http://dx.doi.org/10.1142/s0217979209051954.

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We report a theoretical study on the bias dependence of the current-induced torque in the noncollinear ferromagnet/barrier/ferromagnet (FM) tunnel junction. By using the Keldysh–Green function technique, we derived an analytic expression of the spin transfer torque (STT) based on a continuum model. It was found that for finite bias, the torque induced by current increases monotonically with bias and is nearly antisymmetric with regard to the current direction, which agrees with the experimental observation on the STT in the spin valve system.

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25

ASTAWA, KETUT. "PENCAPAIAN PERFORMA PADA KATUP VARIABEL TIMING FIXED TIMING UNTUK MESIN YANG OPTIMAL." Jurnal Teknik Industri 11, no. 1 (2012): 68. http://dx.doi.org/10.22219/jtiumm.vol11.no1.68-74.

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Problems will be discussed in this research is how differences in exhaust emissions generatedby engine with variable valve timing and valve timing on a fixed volume of motor vehiclecylinder 1300 cc. Variable valve timing technology, which is set when opening and closingthe intake valve (intake valve) electronic fuel according to engine conditions. This will makemixing air and fuel that enters into an efficient machine that will produce great power, fueleconomy and low emissions. Research emissions (CO, CO2, HC, O2) was performedwith dynamictesting, where the vehicle in a state of the load lift

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26

Klenov, Nikolay, Yury Khaydukov, Sergey Bakurskiy, et al. "Periodic Co/Nb pseudo spin valve for cryogenic memory." Beilstein Journal of Nanotechnology 10 (April 9, 2019): 833–39. http://dx.doi.org/10.3762/bjnano.10.83.

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We present a study of magnetic structures with controllable effective exchange energy for Josephson switches and memory applications. As a basis for a weak link we propose to use a periodic structure composed of ferromagnetic (F) layers spaced by thin superconductors (s). Our calculations based on the Usadel equations show that switching from parallel (P) to antiparallel (AP) alignment of neighboring F layers can lead to a significant enhancement of the critical current through the junction. To control the magnetic alignment we propose to use a periodic system whose unit cell is a pseudo spin

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27

Skidanov, V. A., and Iu A. Iusipova. "Dynamics of the magnetization vector of the spin-valve free layer with planar anisotropy under the action of magnetic fields of the arbitrary direction." Известия Российской академии наук. Серия физическая 87, no. 3 (2023): 359–67. http://dx.doi.org/10.31857/s0367676522700636.

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The dynamics of the magnetization vector of the free layer of the spin-valve structure with planar layers anisotropy is simulated in the magnetic fields of the arbitrary direction. The bifurcation analysis of the dynamical system made it possible to determine the conditions of the changing singular points type and classify the magnetization dynamics by types.

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28

Leksin, P. V., R. I. Salikhov, I. A. Garifullin, et al. "Observation of the “Inverse” spin valve effect in a Ni/V/Ni trilayer system." JETP Letters 90, no. 1 (2009): 59–63. http://dx.doi.org/10.1134/s0021364009130128.

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29

Layadi, A. "Resonant and Switching Fields for a Weakly Coupled Magnetic Tunnel Junction System." SPIN 06, no. 04 (2016): 1640011. http://dx.doi.org/10.1142/s2010324716400117.

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The ferromagnetic resonance (FMR) and the magnetization switching fields have been analytically determined for weakly coupled Magnetic Tunnel Junction or spin valve systems. Such systems consist of an antiferromagnetic (AF) and two ferromagnetic (F) thin films separated by a nonmagnetic one. Both bilinear [Formula: see text] and biquadratic [Formula: see text] coupling parameters are used to describe the interlayer exchange coupling, while the exchange anisotropy field [Formula: see text] characterizes the interfacial ([Formula: see text]/AF) interaction. It will be shown how [Formula: see tex

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30

Katakura, T., T. Miyauchi, and T. Mizuguchi. "Fabrication of spin-valve sensors with quarter micron trackwidth using a double-layer resist system." IEEE Transactions on Magnetics 35, no. 5 (1999): 2604–6. http://dx.doi.org/10.1109/20.800907.

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31

Prakash, Chandra, Rajagopal Srivatsan, Himanshu Fulara, and Sujeet Chaudhary. "Tailoring the Hysteresis Loop of the Si/Cu(10nm)/FeMn(10-30nm)/CoFeB(10nm) Bilayer System." Advanced Materials Research 622-623 (December 2012): 695–99. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.695.

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The dependence of hysteretic properties of FeMn/CoFeB (AF/FM) thin bilayers on AF thickness and magnetic annealing temperature is systematically investigated for possible applications in spin-valve devices. Inducement of an easy axis after magnetic annealing is established. The anisotropy is studied by investigating the coercivity along and perpendicular to the induced easy axis using Magneto-Optic Kerr Effect (MOKE) and the AF texture is ascertained by XRD. The existence of an optimum annealing temperature, for which the maximum change in coercivity occurs for a particular AF thickness, is ev

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32

Velez, Javier A., Edward Mosso, and Omar J. Suarez. "Study of Dynamic Behaviors in a Spin Valve System Modeled by the Landau-Lifshitz-Slonczewski Equation." Journal of Magnetics 24, no. 3 (2019): 402–7. http://dx.doi.org/10.4283/jmag.2019.24.3.402.

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33

Susanti, Novi, and Edi Suharyadi. "Analisa Magnetoresistance Berbasis Lapisan Tipis Giant Magnetoresistance (GMR) Pada Nanopartikel Cobalt Ferrite (CoFe2O4) Dilapisi Polyethylen Glicol (PEG)." Jurnal Fisika Indonesia 20, no. 1 (2017): 6. http://dx.doi.org/10.22146/jfi.27955.

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Telah dilakukan pengukuran magnetoresistance pada lapisan tipis spin valve GMR yang memiliki struktur CoFeB/Cu/CoFe/MnIr dengan memvariasikan ketebalan lapisan barrier Cu (2,2 dan 2,8 nm) dan free layer CoFeB (7 dan 10 nm) menggunakan System Four Point Probe Method (SFPPM) pada medan eksternal 0 600 gauss. Dihasilkan perubahan range resistansi (69,29-71,74) Ω untuk Cu 2,2 nm dan (38,5-40,47) Ω untuk ketebalan Cu 2,8 nm. Pada variasi ketebalan CoFeB dihasilkan perubahan range resistansi untuk ketebalan 7 nm dan 10 nm masing masing adalah (38,74-41,11) Ω dan (69,29-71,74) Ω. Selanjutnya lapisan

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34

Anderson, Ansell Alvarez, Anugrah Azhar, Adam Badra Cahaya, and Muhammad Aziz Majidi. "RKKY Interaction in Spin Valve Structure with LaAlO<sub>3</sub> Spacer." Materials Science Forum 1080 (January 30, 2023): 131–37. http://dx.doi.org/10.4028/p-2lm926.

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RKKY interaction is an indirect interaction between localized magnetic moments mediated by conduction electrons. RKKY exchange interaction is mostly found in multilayer involving conductors as the non-magnetic spacer. However, recent experiment shows that LaAlO3 spacer can intermediate long-range exchange interaction even though it is an insulator. Here we study the mechanism of RKKY interaction in LaAlO3. To study the effect of charge transfer, we perform a density functional theory (DFT) approach to obtain the band structure of LaAlO3 with charge doping. Undoped LaAlO3 has an indirect band g

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35

Liu, Mengli, Wei Du, Hua Su, Bo Liu, Hao Meng, and Xiaoli Tang. "Electric-field-tunable linear unipolar magnetic switch based on a spin-valve multiferroic heterostructure." Journal of Physics: Conference Series 2132, no. 1 (2021): 012040. http://dx.doi.org/10.1088/1742-6596/2132/1/012040.

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Abstract This work reports an energy-efficient strategy for realizing linear unipolar giant magnetoresistance (GMR) switch by using electric fields (E-fields). Herein, a modified spin-valve (SV) structure of double antiferromagnetic (AFM) pinning layers was adopted. Since the magnetization direction of ferromagnetic (FM) layer can be controlled via the strain-mediated magnetoelectric (ME) effect, a multiferroic heterostructure of SV/PMN-PT was fabricated. By applying an E-field on the PMN-PT substrate, an effective magnetic field Heff was produced along the [1-10] direction of PMN-PT. It can t

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36

Islam, Md Earul, Kazuki Hayashida, and Masashi Akabori. "Spin injection and detection in MnAs/GaAs/InAs hybrid system on GaAs(111)B through lateral non-local spin valve measurement at varied temperature." AIP Advances 9, no. 11 (2019): 115215. http://dx.doi.org/10.1063/1.5126242.

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37

Tetsukawa, H., M. Kondo, Y. Soda, et al. "Recording characteristics on thin metal evaporated media in a helical-scan tape system with a spin-valve head." IEEE Transactions on Magnetics 38, no. 5 (2002): 1910–12. http://dx.doi.org/10.1109/tmag.2002.802814.

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38

Biswas, Ayan K., Jayasimha Atulasimha, and Supriyo Bandyopadhyay. "Energy-Efficient Hybrid Spintronic–Straintronic Nonvolatile Reconfigurable Equality Bit Comparator." SPIN 07, no. 02 (2017): 1750004. http://dx.doi.org/10.1142/s2010324717500047.

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We propose and analyze a “spintronic/straintronic” reconfigurable equality bit comparator implemented with a nanowire spin valve whose two contacts are two-phase multiferroic nanomagnets and possess bistable magnetization. A reference bit is “written” into a stable magnetization state of one contact and an input bit in that of the other with electrically generated strain. The spin-valve’s resistance is lowered (raised) if the bits match (do not match). Multiple comparators can be interfaced in parallel with a magneto-tunneling junction to determine if an [Formula: see text]-bit input stream ma

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39

Krieger, M., A. Plettl, R. Steiner, H. G. Boyen, and P. Ziemann. "Properties of a Co/Cu/Co spin-valve system prepared by an optimized 193 nm pulsed laser deposition process." Applied Physics A 78, no. 3 (2004): 327–33. http://dx.doi.org/10.1007/s00339-003-2353-8.

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40

Fedorets, Pavel, Chuan Zheng, Ralf Engels, et al. "A High-Density Polarized 3He Gas–Jet Target for Laser–Plasma Applications." Instruments 6, no. 2 (2022): 18. http://dx.doi.org/10.3390/instruments6020018.

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A laser-driven spin-polarized 3He2+-beam source for nuclear–physics experiments and for the investigation of polarized nuclear fusion demands a high-density polarized 3He gas-jet target. Such a target requires a magnetic system providing a permanent homogeneous holding field for the nuclear spins plus a set of coils for adjusting the orientation of the polarization. Starting from a transport vessel at a maximum pressure of 3 bar, the helium gas is compressed for a short time and can be injected into a laser–interaction chamber through a non-magnetic opening valve and nozzle, thus forming jets

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41

Fedorets, Pavel, Chuan Zheng, Ralf Engels, et al. "A High-Density Polarized 3He Gas–Jet Target for Laser–Plasma Applications." Instruments 6, no. 2 (2022): 18. http://dx.doi.org/10.3390/instruments6020018.

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A laser-driven spin-polarized 3He2+-beam source for nuclear–physics experiments and for the investigation of polarized nuclear fusion demands a high-density polarized 3He gas-jet target. Such a target requires a magnetic system providing a permanent homogeneous holding field for the nuclear spins plus a set of coils for adjusting the orientation of the polarization. Starting from a transport vessel at a maximum pressure of 3 bar, the helium gas is compressed for a short time and can be injected into a laser–interaction chamber through a non-magnetic opening valve and nozzle, thus forming jets

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42

COSTA, B. V., J. C. S. ROCHA, P. Z. COURA, S. A. LEONEL, D. TOSCANO, and R. A. DIAS. "MAGNETIC VORTEX BEHAVIOR IN NANO-STRUCTURES." International Journal of Modern Physics C 23, no. 08 (2012): 1240003. http://dx.doi.org/10.1142/s0129183112400037.

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The existence of a vortex in the ground state of magnetic nano-disks has open a wide range of possibilities for constructing new ultra-compact devices. In this work we study the dynamical behavior of a vortex in a magnetic nano-particle. First, we introduce magnetic impurities in the system. It is observed that depending on the strength of the interaction the impurities can behave both as a pinning (attractive) or scattering (repulsive). By using the known values of the parameters for Permalloy-79 we have calculated the interaction energy of the vortex core with a single defect. We estimated t

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43

Sahashi, M., K. Sawada, H. Endo, M. Doi, and N. Hasegawa. "Exchange Bias Characteristics in Specular Spin Valve System With Embedded (Co–Fe)/Cr Nano-Oxide-Layer in Pinned Ferromagnetic Layer." IEEE Transactions on Magnetics 43, no. 9 (2007): 3668–70. http://dx.doi.org/10.1109/tmag.2007.894012.

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44

Early, Philip L., Niamh A. Kilcawley, Niamh A. McArdle, et al. "Digital process control of multi-step assays on centrifugal platforms using high-low-high rotational-pulse triggered valving." PLOS ONE 18, no. 9 (2023): e0291165. http://dx.doi.org/10.1371/journal.pone.0291165.

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Due to their capability for comprehensive sample-to-answer automation, the interest in centrifugal microfluidic systems has greatly increased in industry and academia over the last quarter century. The main applications of these “Lab-on-a-Disc” (LoaD) platforms are in decentralised bioanalytical point-of-use / point-of-care testing. Due to the unidirectional and omnipresent nature of the centrifugal force, advanced flow control is key to coordinate multi-step / multi-reagent assay formats on the LoaD. Formerly, flow control was often achieved by capillary burst valves which require gradual inc

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Mohamad Khairul Aiman Daud, Ili Najaa Aimi Mohd Nordin, Tuan Noor Hasanah Tuan Ismail, et al. "Development of Smart Chopper Composting Monitoring System." Journal of Advanced Research in Applied Sciences and Engineering Technology 42, no. 2 (2024): 197–208. http://dx.doi.org/10.37934/araset.42.2.197208.

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Overconsumption of food can result in environmental pollution, making it a particularly concerning issue in modern civilization. In Malaysia, food waste is generated at a rate of 16,688 tonnes per day. Despite its biodegradation properties and strong composting potential, about 80% of food waste is still disposed of in landfills. Air, soil and water pollution are risks often associated with food waste disposal. Since two-thirds of total waste is avoidable, preventing the rise of household food waste should be a top priority, among which is through composting. This project aims to build a smart

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Vakhrushev, Alexander, Aleksey Fedotov, Vladimir Boian, Roman Morari, and Anatolie Sidorenko. "Molecular dynamics modeling of the influence forming process parameters on the structure and morphology of a superconducting spin valve." Beilstein Journal of Nanotechnology 11 (November 24, 2020): 1776–88. http://dx.doi.org/10.3762/bjnano.11.160.

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This work is a study of the formation processes and the effect of related process parameters of multilayer nanosystems and devices for spintronics. The model system is a superconducting spin valve, which is a multilayer structure consisting of ferromagnetic cobalt nanolayers separated by niobium superconductor nanolayers. The aim was to study the influence of the main technological parameters including temperature, concentration and spatial distribution of deposited atoms over the nanosystem surface on the atomic structure and morphology of the nanosystem. The studies were carried out using th

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Trinh, Xuan Thang, Jen-Tzong Jeng, Huu-Thang Nguyen, Van Su Luong, and Chih-Cheng Lu. "Two-Dimensional Position Tracking Using Gradient Magnetic Fields." Sensors 22, no. 14 (2022): 5459. http://dx.doi.org/10.3390/s22145459.

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In this work, a two-dimensional (2D) position-detection device using a single axis magnetic sensor combined with orthogonal gradient coils was designed and fabricated. The sensors used were an induction coil and a GMR spin-valve sensor GF807 from Sensitec Inc. The field profiles generated by the two orthogonal gradient coils were analyzed numerically to achieve the maximum linear range, which corresponded to the detection area of the tracking system. The two coils were driven by 1-kHz sine wave currents with a 90° phase difference to generate the fields with uniform gradients along the x- and

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Zulhilmi, I. M., M. H. Peeie, R. I. M. Eiman, I. M. Izhar, and S. M. Asyraf. "Investigation on Vehicle Dynamic Behaviour During Emergency Braking at Different Speed." International Journal of Automotive and Mechanical Engineering 16, no. 1 (2019): 6161–72. http://dx.doi.org/10.15282/ijame.16.1.2019.6.0468.

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Safety system of the vehicle can be divided into two main categories; passive and active safety system. The purpose of the passive safety system is to protect the occupant during an accident, while active safety system allows the vehicle to be manoeuvred to avoid any collision. Although active safety system can prevent the accident, in a critical situation such as emergency braking, the dynamic behaviour of the vehicle changes abruptly, and the vehicle becomes unstable. The objective of this study is to analyse the dynamic behaviour of the vehicle during emergency braking with and without anti

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Giurlani, Walter, Giulio Pappaianni, Marco Bonechi, et al. "(Invited) Electrodeposition of Manganese Arsenides (Mn_xAs) as Promising Candidates in Spintronics." ECS Meeting Abstracts MA2023-01, no. 22 (2023): 1554. http://dx.doi.org/10.1149/ma2023-01221554mtgabs.

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Spintronics is a new branch of electronics in which the spin of the electrons as well as their charge is manipulated to produce a desired outcome. Spintronic devices are particularly attractive for memory storage and magnetic sensor applications, and potentially for quantum computing where the electron spin would represent a bit of information. Nowadays many efforts are made to increase the efficiency and lower the production costs of these materials, among others the use of molecular inorganic compounds and cheap preparation techniques [1]. Most of these layers are synthesized with physical a

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Ali, Saqib, and Ali Muneer. "A novel technique for stand-alone hydropower plant." Mehran University Research Journal of Engineering and Technology 41, no. 4 (2023): 157. http://dx.doi.org/10.22581/muet1982.2204.16.

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Stand-alone hydropower plant is a major energy source in grid isolated zone because they do not require dams to be built. In a stand-alone hydropower plant Voltage and frequency, instability is caused by the load variation. This can cause the alternator to spin very quickly or very slowly, causing the induced voltage and output frequency to rise or fall. Furthermore, if the rate of alternator growth is too high or too low, the load appliances connected to the generator can undergo huge damage. For optimal overall performance of a small hydropower plant, generated voltage and frequency must be

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