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Journal articles on the topic 'Anti-ferromagnetic Insulator'

Author: Grafiati

Published: 7 September 2023

Last updated: 31 July 2025

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1

Zhang, Min, Qiya Liu, Ligang Liu, and Tixian Zeng. "Proximity-Induced Magnetism in a Topological Insulator/Half-Metallic Ferromagnetic Thin Film Heterostructure." Coatings 12, no. 6 (2022): 750. http://dx.doi.org/10.3390/coatings12060750.

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Topological insulator (TI) Bi2Se3 thin films were prepared on half-metallic ferromagnetic La0.7Sr0.3MnO3 thin film by magnetron sputtering, forming a TI/FM heterostructure. The conductivity of Bi2Se3was modified by La0.7Sr0.3MnO3 at high- and low-temperature regions via different mechanisms, which could be explained by the short-range interactions and long-range interaction between ferromagnetic insulator and Bi2Se3 due to the proximity effect. Magnetic and transport measurements prove that the ferromagnetic phase and extra magnetic moment are induced in Bi2Se3 films. The weak anti-localized (

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2

Mahfouzi, Farzad, and Nicholas Kioussis. "Ferromagnetic Damping/Anti-damping in a Periodic 2D Helical Surface; A Nonequilibrium Keldysh Green Function Approach." SPIN 06, no. 02 (2016): 1640009. http://dx.doi.org/10.1142/s2010324716400099.

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In this paper, we investigate theoretically the spin–orbit torque (SOT) as well as the Gilbert damping for a two band model of a 2D helical surface state with a ferromagnetic (FM) exchange coupling. We decompose the density matrix into the Fermi sea and Fermi surface components and obtain their contributions to the electronic transport as well as the SOT. Furthermore, we obtain the expression for the Gilbert damping due to the surface state of a 3D topological insulator (TI) and predict its dependence on the direction of the magnetization precession axis.

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3

Zhang, J., K. Zhao, X. S. Yang, and Y. Zhao. "Study of magnetic and transport properties of Bi2Se3/FeSe2 bilayer thin films." International Journal of Modern Physics B 35, no. 02 (2021): 2150022. http://dx.doi.org/10.1142/s0217979221500223.

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Thin films of topological insulator (TI) Bi2Se3 were grown onto the surfaces of FeSe2 layers of different thicknesses on Si (100) substrates by magnetron sputtering, forming bilayer films with smooth surface. Magnetic and transport measurements indicate ferromagnetism in these bilayer samples. Large coercive fields at low-temperatures and a room-temperature magnetic order were observed. Moreover, nonsaturated high-filed linear magnetoresistance (MR) and weak anti-localization effect were found in these bilayer thin films. These results indicate that the bilayer samples could have both strong s

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4

Yokota, Takeshi, Takaaki Kuribayashi, Takeshi Shundo, Keita Hattori, Yasutoshi Sakakibara, and Manabu Gomi. "Magnetic and Dielectric Properties of a Metal/ Cr₂O₃/Cr₂O_3-x/Cr₂O₃/Semiconductor Capacitor Using Magneto-Electric Materials." Key Engineering Materials 350 (October 2007): 221–24. http://dx.doi.org/10.4028/www.scientific.net/kem.350.221.

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We investigated the magnetic and dielectric properties of a metal (Pt)/insulator (Cr2O3)/semiconductor (Si) (MIS) capacitor composed of magneto-electric (ME) materials. The capacitor has anti-ferromagnetic properties and a very small electrically induced magnetic moment. It also shows capacitance-voltage (C-V) properties typical of a Si-MIS capacitor without any hysteresis. By inserting a thin Cr2O3-x layer, the C-V curve has a hysteresis window with a clockwise trace, which indicates that electrons have been injected into the Cr2O3-x layer. These results indicate that this MIS capacitor conta

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5

Sumi, Satoshi, Yuichiro Hirano, Hiroyuki Awano, and Junji Tominaga. "Ferromagnetic Resonance of a [GeTe/Sb2Te3]6/Py Superlattice." Magnetochemistry 7, no. 12 (2021): 156. http://dx.doi.org/10.3390/magnetochemistry7120156.

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A [GeTe/Sb2Te3] superlattice is known as a topological insulator. It shows magnetic responses such as magneto-optical effect, magneto resistance, magneto capacitance, and so on. We have reported that [GeTe/Sb2Te3] superlattice film has a large spin–orbit interaction using a spin pumping method of a [GeTe/Sb2Te3]/Py superlattice. In this paper, we demonstrate a ST-FMR (spin transfer torque ferromagnetic resonance) of the [GeTe/Sb2Te3]6/Py superlattice, compared with a W/Py bilayer. The superlattice film showed a large resonance signal with a symmetric component. The ratio of symmetric component

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6

Xie, Hangkai, Fucong Fei, Fenzhen Fang, et al. "Charge carrier mediation and ferromagnetism induced in MnBi₆Te₁₀ magnetic topological insulators by antimony doping." Journal of Physics D: Applied Physics 55, no. 10 (2021): 104002. http://dx.doi.org/10.1088/1361-6463/ac3790.

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Abstract A new kind of intrinsic magnetic topological insulator (MTI) MnBi2Te4 family has shed light on the observation of novel topological quantum effects such as the quantum anomalous Hall effect (QAHE). However, strong anti-ferromagnetic (AFM) coupling and high carrier concentration in the bulk hinder practical applications. In closely related materials MnBi4Te7 and MnBi6Te10, the interlayer magnetic coupling is greatly suppressed by Bi2Te3 layer intercalation. However, AFM is still the ground state in these compounds. Here, by magnetic and transport measurements, we demonstrate that a Sb

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7

Majumder, Supriyo, Malvika Tripathi, I. Píš, et al. "Robust electronic and tunable magnetic states in Sm₂ NiMnO₆ ferromagnetic insulator." Journal of Physics: Condensed Matter 34, no. 25 (2022): 255502. http://dx.doi.org/10.1088/1361-648x/ac62a4.

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Abstract Ferromagnetic insulators (FM-Is) are the materials of interest for the new generation quantum electronic applications. Here, we have investigated the physical observables depicting FM-I ground states in epitaxial Sm2NiMnO6 (SNMO) double perovskite thin films fabricated under different conditions to realize the different level of Ni/Mn anti-site disorders (ASDs). The presence of ASDs immensely influence the characteristic magnetic and anisotropy behaviors in SNMO system by introducing short scale antiferromagnetic interactions in predominant long range FM ordered host matrix. Charge di

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8

Zawawi, Rabiatul Adawiyah, Nurul Nasuha Khairulzaman, Suhadir Shamsuddin, and Norazila Ibrahim. "Comparative Study on Structural, Electrical Transport and Magnetic Properties of Cr-Doped in Charge-Ordered Pr0.75Na0.25Mn1-Xcrxo3 and Nd0.75Na0.25Mn1-Ycryo3 Manganites." International Journal of Engineering & Technology 7, no. 4.30 (2018): 76. http://dx.doi.org/10.14419/ijet.v7i4.30.22016.

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Cr doping in charge-ordered Pr0.75Na0.25Mn1-xCrxO3 and Nd0.75Na0.25Mn1-yCryO3 have been synthesized using conventional solid-state method to investigate its effect on structural, electrical transport and magnetic properties. X-ray diffraction (XRD) analysis for both compounds showed that the samples were crystallized in an orthorhombic structure with Pnma group. The unit cell volume value decrease as the Cr-doped increased indicating the possibility of Mn3+ ion was replaced by Cr3+ due to the different of ionic radius. The temperature dependence of electrical resistivity showed an insulating b

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9

Htoon, Han. "(Invited) Opportunities and Challenges for Quantum Emitters in One and Two Dimensional Materials." ECS Meeting Abstracts MA2022-01, no. 9 (2022): 736. http://dx.doi.org/10.1149/ma2022-019736mtgabs.

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The last five years have witnessed dramatic advances in realization of quantum emitters (QEs) in one dimensional carbon nanotubes and two dimensional layered semiconductors. These novel QEs offer exciting opportunities for not only storing, processing and transducing of quantum information but also sensing physical phenomena beyond classical detection limits. Realization of these opportunities also present multiple challenges including: (1) realizing room temperature, telecommunication wavelength operation; (2) controlling fundamental as well as quantum optical properties such as QE emission w

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10

Singh, Amit Kumar, Ashwani Kumar, and Beer Pal Singh. "A Review on the Magnetic Behaviour of Ni and Mn based Double Perovskites." Prabha Materials Science Letters 3, no. 2 (2024): 218–41. http://dx.doi.org/10.33889//pmsl.2024.3.2.014.

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This review article describes the observation of some fascinating phenomena in double perovskites. Multifunctional double perovskite materials of general formula A2BB'O6 have received significant scientific attention owing to their fascinating physical characteristics, such as low field magnetoresistance, high temperature ferromagnetism, metal-insulator transition, spin ordering, phase separation and multiferroicity making them a potential candidate for spintronics device applications. Among them, R2NiMnO6 double perovskites have drawn significant attention in last few decades, owing to their

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11

Itoi, Miho, Toshikazu Nakamura, and Yoshiya Uwatoko. "Pressure-Induced Superconductivity of the Quasi-One-Dimensional Organic Conductor (TMTTF)2TaF6." Materials 15, no. 13 (2022): 4638. http://dx.doi.org/10.3390/ma15134638.

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We investigated the superconductivity of (TMTTF)2TaF6 (TMTTF: tetramethyl-tetrathiafulvalene) by conducting resistivity measurements under high pressure up to 8 GPa. A cubic anvil cell (CAC) pressure generator, which can produce hydrostatic high-pressure, was used for this study. Since the generalized temperature-pressure (T-P) diagram of (TMTCF)2X (C = Se, S, X: monovalent anion) based on (TMTTF)2PF6 (TCO = 70 K and spin-Peierls: SP, TSP = 15 K) was proposed by Jérome, exploring superconductivity states using high-pressure measurement beyond 4 GPa has been required to confirm the universality

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12

Millo, Oded, and Gad Koren. "What can Andreev bound states tell us about superconductors?" Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2125 (2018): 20140143. http://dx.doi.org/10.1098/rsta.2014.0143.

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Zero-energy Andreev bound states, which manifest themselves in the tunnelling spectra as zero-bias conductance peaks (ZBCPs), are abundant at interfaces between superconductors and other materials and on the nodal surface of high-temperature superconductors. In this review, we focus on the information such excitations can provide on the properties of superconductor systems. First, a general introduction to the physics of Andreev bound states in superconductor/normal metal interfaces is given with a particular emphasis on why they appear at zero energy in d -wave superconductors. Then, specific

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13

Araujo, Clodoaldo Irineu Levartoski de, Pauli Virtanen, Maria Spies, et al. "Superconducting spintronic heat engine." Nature Communications 15, no. 1 (2024). http://dx.doi.org/10.1038/s41467-024-49052-z.

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AbstractHeat engines are key devices that convert thermal energy into usable energy. Strong thermoelectricity, at the basis of electrical heat engines, is present in superconducting spin tunnel barriers at cryogenic temperatures where conventional semiconducting or metallic technologies cease to work. Here we realize a superconducting spintronic heat engine consisting of a ferromagnetic insulator/superconductor/insulator/ferromagnet tunnel junction (EuS/Al/AlOx/Co). The efficiency of the engine is quantified for bath temperatures ranging from 25 mK up to 800 mK, and at different load resistanc

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14

Holmes-Hewett, W. F., K. Van Koughnet, J. D. Miller, et al. "Indications of a ferromagnetic quantum critical point in $$\textrm{SmN}_{1-\delta }$$." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-46911-5.

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AbstractWe investigate the previously observed superconductivity in ferromagnetic SmN in the context of the breakdown of order between two magnetic phases. Nitrogen vacancy doped SmN$$_{1-\delta }$$ 1 - δ is a semiconductor which lies in the intermediary between ferromagnetic SmN and anti-ferromagnetic Sm. Optical data reported here corroborate the prediction that electrical transport is mediated by Sm 4f defect states, and electrical transport measurements characterise the metal-insulator transition over the doping range. Our measurements show that the superconducting state in nitrogen vacanc

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15

Ghosh, Labanya, Swayangsiddha Ghosh, Srishti Dixit, et al. "Coexistence of Kondo effect and Weak anti-localization in Topological insulator/Ferromagnetic heterostructure." Applied Surface Science, July 2024, 160850. http://dx.doi.org/10.1016/j.apsusc.2024.160850.

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16

Chigusa, So, Takeo Moroi, and Kazunori Nakayama. "Axion/hidden-photon dark matter conversion into condensed matter axion." Journal of High Energy Physics 2021, no. 8 (2021). http://dx.doi.org/10.1007/jhep08(2021)074.

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Abstract The QCD axion or axion-like particles are candidates of dark matter of the universe. On the other hand, axion-like excitations exist in certain condensed matter systems, which implies that there can be interactions of dark matter particles with condensed matter axions. We discuss the relationship between the condensed matter axion and a collective spin-wave excitation in an anti-ferromagnetic insulator at the quantum level. The conversion rate of the light dark matter, such as the elementary particle axion or hidden photon, into the condensed matter axion is estimated for the discover

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17

Pandey, Lalit, Rahul Gupta, Amir Khan, et al. "Topological surface state induced spin pumping in sputtered topological insulator (Bi2Te3)–ferromagnet (Co60Fe20B20) heterostructures." Journal of Applied Physics 134, no. 4 (2023). http://dx.doi.org/10.1063/5.0156982.

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Topological insulators with high spin–orbit coupling and helically spin-momentum-locked topological surface states (TSSs) can serve as efficient spin current generators for modern spintronics applications. We used the industrial-friendly DC magnetron sputtering technique to fabricate magnetic heterostructures consisting of Bi2Te3 (BT) as a topological insulator and Co60Fe20B20 (CFB) as a magnetic layer and studied the temperature-dependent spin pumping, utilizing out-of-plane ferromagnetic resonance spectroscopy. These results demonstrate that the effective spin-mixing conductance is significa

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18

Min, Yueqi, Wenqin Xie, Haolan Jiang, et al. "Magnetic phase transition driven by nitrogen doping in Fe3Ga thin films." Applied Physics Letters 126, no. 18 (2025). https://doi.org/10.1063/5.0256622.

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Magnetic phase transition holds considerable scientific and technological value in the field of spintronics, as it plays a crucial role in the manipulation and control of spin degrees of freedom. In this study, by controlling nitrogen doping, we demonstrate a magnetic phase transition in Fe3Ga thin films, shifting from a ferromagnetic insulator Fe3Ga with cubic structure to a ferromagnetic metal Fe3GaN with anti-perovskite structure. This transformation is likely associated with the lattice expansion induced by nitrogen incorporation and the resulting changes in the electronic structure of Fe

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19

Qi, Shaomian, Di Chen, Kangyao Chen, et al. "Giant electrically tunable magnon transport anisotropy in a van der Waals antiferromagnetic insulator." Nature Communications 14, no. 1 (2023). http://dx.doi.org/10.1038/s41467-023-38172-7.

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AbstractAnisotropy is a manifestation of lowered symmetry in material systems that have profound fundamental and technological implications. For van der Waals magnets, the two-dimensional (2D) nature greatly enhances the effect of in-plane anisotropy. However, electrical manipulation of such anisotropy as well as demonstration of possible applications remains elusive. In particular, in-situ electrical modulation of anisotropy in spin transport, vital for spintronics applications, has yet to be achieved. Here, we realized giant electrically tunable anisotropy in the transport of second harmonic

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20

Majumder, Supriyo, Malvika Tripathi, Danilo Oliveira de Souza, et al. "Existence of structural, electronic and magnetic correlations in Sm$ _{2} $NiMnO$ _{6} $ double perovskite." Journal of Physics: Condensed Matter, February 5, 2025. https://doi.org/10.1088/1361-648x/adb2d1.

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Abstract Coupling between different interactions allows the control of physical aspects in multifunctional materials by perturbing any degrees of freedom. Here, we aim to probe the correlation among structural, electronic, and magnetic observables in Sm$ _{2} $NiMnO$ _{6} $ (SNMO) ferromagnetic insulator double perovskite. Our employed methodology includes thermal evolution of X-ray diffraction, X-ray absorption spectroscopy, and bulk magnetometry. The magnetic ordering in SNMO adopts two transitions, at T$ _{C} $=160 K due to the ferromagnetic arrangement of Ni-Mn sublattice and at T$ _{d} $=

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21

Kander, Niladri Sekhar, Suman Guchhait, and Amal Kumar Das. "Influence of magnetic (Fe) and non-magnetic (In) doping on structural, magnetic, and weak anti-localization properties of Bi₂Te₃ topological insulator." Physica Scripta, January 20, 2023. http://dx.doi.org/10.1088/1402-4896/acb513.

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Abstract In this article, we have studied the changes in structural, magnetic, and magneto-transport properties of Bi2Te3 topological insulator doped with magnetic (Fe) as well as non-magnetic (In) elements. The un-doped along with Fe, In-doped Bi2Te3 are grown using a melt growth technique. The Rietveld analysis of x-ray diffraction data expresses that both In and Fe-dopants substituted the Bi-position with a little bit of interstitial incorporation in host Bi2Te3. It is also noticed that In-doping is slightly favorable for Bi-substitution than Fe. The magnetic characterization reveals a mixi

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22

Moradian, Rostam, and Poorya Rabibeigi. "How electrons Coulomb repulsion changes graphene band structure." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-09527-9.

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AbstractBase on effective medium theory we introduce a multi sites method for calculation of realistic energy bands of strongly correlated systems. We found due to approximated self energy, the density of states that obtained directly by calculated local Green function does not reflects system energy bands truly. By using this method we investigated how electrons repulsion renormalizes graphene bands. Graphene realistic bands calculated in both the dynamical mean field theory (DMFT) and four sites beyond super cell approximation for different repulsions. Our calculated interacting graphene ban

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23

Xu, Haowei, Hua Wang, Jian Zhou, and Ju Li. "Pure spin photocurrent in non-centrosymmetric crystals: bulk spin photovoltaic effect." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-24541-7.

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AbstractSpin current generators are critical components for spintronics-based information processing. In this work, we theoretically and computationally investigate the bulk spin photovoltaic (BSPV) effect for creating DC spin current under light illumination. The only requirement for BSPV is inversion symmetry breaking, thus it applies to a broad range of materials and can be readily integrated with existing semiconductor technologies. The BSPV effect is a cousin of the bulk photovoltaic (BPV) effect, whereby a DC charge current is generated under light. Thanks to the different selection rule

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24

-, Haris Arquam, and Ajit Bahadur Verma -. "A Review Paper on “Vanta-black Color”, “Reinforced Polymer Based Materials/ Radar Absorbing Materials”& “Thermal Infrared Reflective Metal Oxide Sol-gel Coating” Used in “Stealth Vehicle”." International Journal For Multidisciplinary Research 5, no. 3 (2023). http://dx.doi.org/10.36948/ijfmr.2023.v05i03.3908.

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Every country is doing a lot of research and development work on security and defense. A country like India shares their border with different countries from three sides need a lot of protection on border. Countries are making new armors and weapons with latest technologies so that their border can be protected. With the help of stealth technology, we make any object similar to surrounding environment in term of color (vantablack) and shape. If we use this technology in army jeep and tanks, then enemy will not be able to find out the position of our jeep and tanks on border. Stealth vehicle wi

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25

Chen, Yu, Maria D'Antuono, Mattia Trama, et al. "Dirac‐Like Fermions Anomalous Magneto‐Transport in a Spin‐Polarized Oxide 2D Electron System." Advanced Materials, October 30, 2024. http://dx.doi.org/10.1002/adma.202410354.

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AbstractIn a 2D electron system (2DES) the breaking of the inversion, time‐reversal and bulk crystal‐field symmetries is interlaced with the effects of spin‐orbit coupling (SOC) triggering exotic quantum phenomena. Here, epitaxial engineering is used to design and realize a 2DES characterized simultaneously by ferromagnetic order, large Rashba SOC and hexagonal band warping at the (111) interfaces between LaAlO3, EuTiO3, and SrTiO3 insulators. The 2DES displays anomalous quantum corrections to the magneto‐conductance driven by the time‐reversal‐symmetry breaking occurring below the magnetic tr

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26

Gao, Xiang, Zhihong Deng, Cheng Ma, et al. "Controllable spin transport in a zigzag silicene nanoribbon embedding multiple rectangular quantum dots." Applied Physics Letters 124, no. 8 (2024). http://dx.doi.org/10.1063/5.0186637.

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Based on the recursive Green-function method together with Landauer–Büttiker formalism, the spin-dependent transport properties of electrons in a zigzag silicene nanoribbon embedding multiple rectangular quantum dots (QDs) are investigated. According to an analysis of the energy band under the periodically distributed electric field and exchange ferromagnetic field, the parallel exchange field induced by the ferromagnetic insulators eliminates the spin degeneracy, which leads to spin-polarized transport in the proposed structure. By tuning a periodic electric field, we found the relationship b

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27

Du, Xue, Jinghong Zhao, Jintian Wang, et al. "High-throughput computational screening of auxetic two-dimensional metal dichalcogenides and dihalides." Journal of Chemical Physics 162, no. 1 (2025). https://doi.org/10.1063/5.0245745.

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Auxetic materials hold tremendous potential for many advanced applications, but candidates are quite scarce, especially at two dimensions. Here, we focus on two-dimensional (2D) metal dichalcogenides and dihalides with the chemical formula MX2 by screening structures sharing the P4̄m2 space group among 330 MX2 compounds from the computational 2D materials database. Via high-throughput first-principles computations, 25 stable MX2 (M = Mg, Ca, Mn, Co, Ni, Cu, Zn, Ge, Cd, Sn; X = F, Cl, Br, I, O, S, Se) systems with in-plane negative Poisson’s ratios (NPRs) are successfully identified. Within the

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