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Artículos de revistas sobre el tema "Phase ferromagnetic"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 9 de febrero de 2022

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1

Yamazaki, Takahiro, Akira Uehara, Katsuya Kozawa, Yoshihide Kimisima, and Masatomo Uehara. "Chemical Phase Separation of Superconductive and Ferromagnetic Domains inZnNNi3−xCox." Advances in Condensed Matter Physics 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/902812.

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Various ZnNyNi3−xCoxcompounds with differing Co content,x, were synthesized, and their magnetic properties were investigated. Uniform solid solutions could not be obtained at low Co content (x<0.75); instead micrometer-scaled ferromagnetic ZnNyNi0.6Co2.4domains formed embedded within a superconductive ZnNNi3bulk, showing chemical phase separation of superconductive ZnNNi3and ferromagnetic ZnNyNi0.6Co2.4. At intermediate levels of Co concentration (0.75<x<2), this two-phase separation might persist, and the superconductive behavior was strongly suppressed in this composition region. On

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2

ZHAO, GUO-MENG, and PIEDER BEELI. "NOVEL MAGNETIC PROPERTIES IN MULTI-WALLED CARBON NANOTUBE MATS: CONSISTENT WITH THE PARAMAGNETIC MEISSNER EFFECT DUE TO ULTRAHIGH-TEMPERATURE SUPERCONDUCTIVITY." International Journal of Modern Physics B 23, no. 20n21 (2009): 4285–96. http://dx.doi.org/10.1142/s0217979209063444.

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We report magnetic measurements up to 1200 K on iron-contaminated multi-walled carbon nanotube mats with a Quantum Design vibrating sample magnetometer. Extensive magnetic data consistently show a ferrromagnetic transition at about 1000 K and a ferromagnetic-like transition at about 1275 K. The ferromagnetic transition at about 1000 K is associated with an Fe impurity phase and its saturation magnetization is in quantitative agreement with the Fe concentration measured by an inductively coupled plasma mass spectrometer. On the other hand, the saturation magnetization for the ferromagnetic-like

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3

ACHARYYA, MUKTISH. "NONEQUILIBRIUM PHASE TRANSITIONS IN MODEL FERROMAGNETS: A REVIEW." International Journal of Modern Physics C 16, no. 11 (2005): 1631–70. http://dx.doi.org/10.1142/s0129183105008266.

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The thermodynamical behaviors of ferromagnetic systems in equilibrium are well studied. However, the ferromagnetic systems far from equilibrium became an interesting field of research in last few decades. Recent exploration of ferromagnetic systems in the presence of a steady magnetic field are also studied by using standard tools of equilibrium statistical physics. The ferromagnet in the presence of time-dependent magnetic field, shows various interesting phenomena. An usual response of a ferromagnet in the presence of a sinusoidally oscillating magnetic field is the hysteresis. Apart from th

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4

Belokon, V. I., K. V. Nefedev, and O. I. Dyachenko. "Phase Transitions in the Binary Alloys with Annealed Magnetic Impurities." Applied Mechanics and Materials 328 (June 2013): 789–93. http://dx.doi.org/10.4028/www.scientific.net/amm.328.789.

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In this paper we study within the Ising model a ferromagnet with annealed impurities in thermodynamic equilibrium with the lattice by the method of averaging over the exchange-interaction fields. We show that diffusion can significantly reduce the average critical concentration of "ferromagnetic" atoms and increase the Curie temperature. Also diffusion leads to the appearance of regions with high concentrations of ferromagnetic atoms on a background field with their low content.

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5

Sun, Y., W. Tong, and X. Luo. "Possible magnetic correlation above the ferromagnetic phase transition temperature in Cr2Ge2Te6." Physical Chemistry Chemical Physics 21, no. 45 (2019): 25220–25. http://dx.doi.org/10.1039/c9cp04685b.

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6

Zyuzin, A. A., and A. Y. Zyuzin. "Spin Injection as a Source of the Metamagnetic Phase Transition." Solid State Phenomena 168-169 (December 2010): 461–64. http://dx.doi.org/10.4028/www.scientific.net/ssp.168-169.461.

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We consider a metamagnetic phase transition of itinerant electrons in the metamagnetic- ferromagnetic metal junction. The current flow between a ferromagnetic metal and a metamagnetic metal produces the non-equilibrium spin imbalance acting as an effective magnetic field and initiating the first-order type transition from low- to high-magnetization states of the metamagnet in the vicinity of the ferromagnet. We show that the current dependence of the length of high-magnetization state region diverges at some threshold value, due to nonequilibrium shift, generated in a contact between the high

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7

Wang, Huan, Xi Chen, Xing Yuan Chen, and Yu Jun Zhao. "Stable Antiferromagnetism of Orthorhombic BiCrO₃ under Pressure: a Theoretical Study." Advanced Materials Research 298 (July 2011): 243–48. http://dx.doi.org/10.4028/www.scientific.net/amr.298.243.

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The realization of ferromagnetism or ferrimagnetism in BiCrO3 is crucial for its potential application in magnetoelectronic devices. It is known from experiment that the antiferromagnetic monoclinic phase of BiCrO3 transits to orthorhombic as pressure beyond 1GPa. Here, we present a first-principles study of the magnetism of orthorhombic BiCrO3 under pressures up to 80GPa. We find that the energy difference between its ferromagnetic phase and the ground state of G-type anti-ferromagnetic phase becomes greater as the pressure increases, as well as the estimated magnetic transition temperature T

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8

Jonason, K., J. Mattsson, and P. Nordblad. "Chaos in the Ferromagnetic Phase of a Reentrant Ferromagnet." Physical Review Letters 77, no. 12 (1996): 2562–65. http://dx.doi.org/10.1103/physrevlett.77.2562.

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9

Троянчук, И. О., М. В. Бушинский, Н. В. Терешко, В. Сиколенко, C. Ritter та S. Schorr. "Магнитные фазовые диаграммы R-=SUB=-1-x-=/SUB=-Sr-=SUB=-x-=/SUB=-(Mn-=SUB=-1-x/2-=/SUB=-Sb-=SUB=-x/2-=/SUB=-)O-=SUB=-3-=/SUB=- (R=La, Pr, Nd, Sm, Eu) с ионами марганца в трехвалентном состоянии". Физика твердого тела 60, № 9 (2018): 1717. http://dx.doi.org/10.21883/ftt.2018.09.46389.003.

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AbstractThe results of neutron-diffraction, magnetic, and magnetotransport studies of La_1 ‒ x Sr_ x (Mn _1- x /2 ^3+ Sb _ x /2 ^5+ )O_3 ( x ≤ 0.7) pervoskites, which contain only Mn^3+ ions, are reported. It is demonstrated that the system undergoes a transition from the antiferromagnetic state to the ferromagnetic one at x ∼ 0.2. Its structure then changes from O ′-orthorombic to O -orthorombic, which is attributable to orbital disordering. At x ≥ 0.6, the competition between antiferromagnetic and ferromagnetic interactions and strong diamagnetic dilution trigger the emergence of the cluster

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10

Sakon, Takuo, Yuhi Hayashi, Akihito Fukuya, et al. "Investigation of the Itinerant Electron Ferromagnetism of Ni2+xMnGa1−x and Co2VGa Heusler Alloys." Materials 12, no. 4 (2019): 575. http://dx.doi.org/10.3390/ma12040575.

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Experimental investigations into the field dependence of magnetization and temperature dependences of magnetic susceptibility in Ni2+xMnGa1−x (x = 0.00, 0.02, 0.04) and Co2VGa Heusler alloy ferromagnets were performed following the spin fluctuation theory of itinerant ferromagnetism, called as “Takahashi theory”. We investigated the magnetic field dependence of magnetization at the Curie temperature TC, which is the critical temperature of the ferromagnetic–paramagnetic transition, and also at T = 5 K, which concerns the ground state of the ferromagnetic state. The field dependence of the magn

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11

Rajan, K. Jayanthi, Kausalya Ganesan, Satyanaryana Lanka, Swati Bishnoi, and Manorama V. Sunkara. "Probing high temperature ferromagnetism and its paramagnetic phase change due to Eu3+ incorporation in ZnO nanophosphors." RSC Advances 6, no. 79 (2016): 75669–80. http://dx.doi.org/10.1039/c6ra10853a.

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Ferromagnetic oxide semiconductors exhibiting efficient luminescent properties together with robust ferromagnetism above room temperature form an exclusive class of spintronic materials endowed with both charge and spin degrees of freedom.

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12

Syväjärvi, Mikael, L. Nasi, Gholam Reza Yazdi, et al. "Formation of Ferromagnetic SiC:Mn Phases." Materials Science Forum 483-485 (May 2005): 241–44. http://dx.doi.org/10.4028/www.scientific.net/msf.483-485.241.

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Ferromagnetic phases in as-grown SiC have been studied. An interpretation about the formation based on details of the phase appearance in the layers from optical microscopy, AFM, and TEM investigations is related to the growth. Some phases were found to have a nucleation at the edge of the phase and detailed TEM investigations show that the phases have an increased grain density at the edge while the main part of the phase is monocrystalline.

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13

RAJESWARA PALANICHAMY, R., M. ANANDAJOTHI, A. JAWAHAR, and K. IYAKUTTI. "INVESTIGATION OF NON-MAGNETIC AND FERROMAGNETIC PHASES OF 3D ELECTRON CRYSTAL WITH NaCl AND CsCl STRUCTURES." International Journal of Modern Physics B 22, no. 21 (2008): 3627–40. http://dx.doi.org/10.1142/s0217979208039952.

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The non-magnetic and ferromagnetic phases of 3D Wigner electron crystal are investigated using a localized representation of the electrons with NaCl and CsCl structures. The ground state energies of ferromagnetic and non-magnetic phases of Wigner electron crystal are computed in the range 10 ≤ rs ≥ 130. The role of correlation energy is suitably taken into account. The low density region favorable for the ferromagnetic phase is found to be 4.8 × 1020 electrons/cm3 and for the non-magnetic phase, it is 2.03 × 1020 electrons/cm3. It is found that the ground state energy of ferromagnetic phase is

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14

Zhu, Jing-Min. "Quantum phase transitions in composite matrix product states of one-dimensional spin-1/2 chains." International Journal of Modern Physics B 29, no. 09 (2015): 1550071. http://dx.doi.org/10.1142/s021797921550071x.

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For matrix product states of one-dimensional spin-1/2 chains, we investigate the properties of quantum phase transition of the proposed composite system. We find that the system has three different ferromagnetic phases, one line of the two ferromagnetic phases coexisting equally describes the paramagnetic state, and the other two lines of two ferromagnetic phases coexisting equally describe the ferrimagnetic states, while the three phases coexisting equally point describes the ferromagnetic state. Whether on phase transition lines or at the phase transition point, the system is always in an is

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15

Huang, Bo, Bao-Ying Wang, Zi-Yi Du, et al. "Importing spontaneous polarization into a Heisenberg ferromagnet for a potential single-phase multiferroic." Journal of Materials Chemistry C 4, no. 37 (2016): 8704–10. http://dx.doi.org/10.1039/c6tc02715f.

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A novel two-dimensional Heisenberg ferromagnet, [C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>4</sub>NH<sub>3</sub>]<sub>2</sub>[CuCl<sub>4</sub>], exhibits ferroelastic, ferroelectric and ferromagnetic transitions at 337, 143 and 7.8 K, respectively.

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16

Belokon, Valery I., Konstantin V. Nefedev, and Olga I. Dyachenko. "Concentration Phase Transitions in Two-Sublattice Magnets." Advanced Materials Research 557-559 (July 2012): 731–34. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.731.

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Phase transitions and critical phenomena are investigated within a two-sublattice model. In the framework of the random fields with the exchange interaction method the system of equations is obtained. It allows us to establish conditions under which magnetic phase transitions are possible. Critical concentration of ferromagnetic atoms which is necessary for the existence of ferromagnetic, ferrimagnetic and antiferromagnetic phases is determined.

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17

Koyama, T., Y. Togawa, K. Takenaka, and S. Mori. "Ferromagnetic microstructures in the ferromagnetic metallic phase of La0.825Sr0.175MnO3." Journal of Applied Physics 111, no. 7 (2012): 07B104. http://dx.doi.org/10.1063/1.3677684.

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18

Barrozo, Petrucio, Nelson O. Moreno, and José Albino Aguiar. "Ferromagnetic Cluster on La₂FeMnO₆." Advanced Materials Research 975 (July 2014): 122–27. http://dx.doi.org/10.4028/www.scientific.net/amr.975.122.

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The structural, magnetic and electrical transport properties of La2MnFeO6bulk samples prepared by combustion synthesis have been investigated. The X-ray powder diffraction (XRD) patterns with Rietveld refinement at room temperature shows that samples prepared by combustion synthesis are formed in single phase with an orthorhombic structure space group Pnma (62). The temperature dependent magnetization shows a formation of ferromagnetic cluster at 150K with short range interactions and a long range ferromagnetic order below 75 K. The magnetic field dependence of the magnetization shows a typica

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19

Lu, R. E., K. G. Chang, S. Yang, Y. G. Yao, B. Fu, and X. P. Song. "Griffith phase-induced ferromagnetic diffuse phase transition." Materials Research Innovations 19, sup3 (2015): S9—S14. http://dx.doi.org/10.1179/1432891715z.0000000001417.

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20

Sheyerman, Alexander, Gennady Ovsyannikov, Yulii Kislinskii, Karen Constantinian, and Anton Shadrin. "Current-Phase Relation of Superconductor-Ferromagnet-Superconductor Junctions with a Composite Interlayer." Solid State Phenomena 233-234 (July 2015): 737–40. http://dx.doi.org/10.4028/www.scientific.net/ssp.233-234.737.

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We report on microwave measurements of hybrid superconductor-ferromagnet-superconductor (SFF’S’) junctions with a composite oxide ferromagnetic bilayer with non-collinear magnetizations. Current-phase relation (CPR) of the junction superconducting current has been evaluated as a function of magnetic field. A significant part of the 2nd harmonic in CPR, about 50%, was measured.

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21

Farkašovský, Pavol. "The Influence of Long-Range Hopping on Ferromagnetism in the Hubbard Model." International Journal of Modern Physics B 12, no. 07n08 (1998): 803–8. http://dx.doi.org/10.1142/s0217979298000466.

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The phase diagram of the Hubbard model in an external magnetic field is examined by extrapolation of small-cluster exact-diagonalization calculations. Using a general expression for the hopping matrix elements (tij ~ q|i-j|) the influence of long-range hopping (band asymmetry) on ferromagnetism in this model is studied. It is found that the long-range hopping (nonzero q) stabilizes ferromagnetism in an external magnetic field for n > 1. In the opposite limit n≤1 the fully polarized ferromagnetic state is generally suppressed with increasing q. The critical value of magnetic field h below wh

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22

Huang, Angus, Sheng-Hsiung Hung, and Horng-Tay Jeng. "Strain Induced Metal–Insulator Transition of Magnetic SrRuO3 Single Layer in SrRuO3/SrTiO3 Superlattice." Applied Sciences 8, no. 11 (2018): 2151. http://dx.doi.org/10.3390/app8112151.

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Ferromagnetic phase in a two-dimensional system plays an important role not only in applications but also in studies of phase transition theory. Among numerous ferromagnetic materials, Sr Ru O 3 is famous for its half-metallicity, itinerant ferromagnetism and non-Fermi liquid metalicity. Single layer Sr Ru O 3 in Sr Ru O 3 / Sr Ti O 3 (SRO/STO) superlattice has been predicted as a two-dimensional half-metallic ferromagnetic system based on density functional theory (DFT). However, experiments show that metal–insulator transition associated with ferro–antiferromagnetism (FM–AFM) transition occu

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23

Gulacsi, M. "Magnetism in rare-earth alloys." International Journal of Modern Physics B 28, no. 25 (2014): 1430016. http://dx.doi.org/10.1142/s0217979214300163.

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Low dimensional rare-earth alloys reveal a rich phase diagram which always incorporate a ferromagnetic (FM) phase. Here we show that rare-earth ferromagnetism in low dimensions is due to double-exchange mechanism. We use the bosonized version of the one-dimensional Anderson lattice model in Toulouse limit to characterize the properties of this emerging FM phase. We give a comprehensive description of the FM ordering of the correlated electrons which appears at intermediate couplings and doping. Determine the critical properties of the phase transitions into the quantum disordered paramagnetic

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24

Mnyukh, Yuri. "Ferromagnetic State and Phase Transitions." American Journal of Condensed Matter Physics 2, no. 5 (2012): 109–15. http://dx.doi.org/10.5923/j.ajcmp.20120205.01.

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25

Bland, Stewart. "Fast flip to ferromagnetic phase." Materials Today 14, no. 6 (2011): 245. http://dx.doi.org/10.1016/s1369-7021(11)70136-5.

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26

Dan, Nguyen Huy, and Nguyen Manh An. "Influence of Annealing Conditions on Structure and Critical Parameters of Ni50Mn37Sn13 Magnetocaloric Material." Communications in Physics 24, no. 1 (2014): 79. http://dx.doi.org/10.15625/0868-3166/24/1/2862.

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In this paper, we present the influence of annealing conditions on structure and magnetic behavior of Ni\(_{50}\)Mn\(_{37}\)Sn\(_{13}\) magnetocaloric alloy prepared by arc-melting technique. The results show that the almost single phase of the full Heusler structure of Ni\(_{2}\)MnSn could be achieved by appropriate annealing. The transformation between martensite and austenite phases, and multi-magnetic phase behavior are observed more clearly with higher fraction of Ni\(_{2}\)MnSn phase. By using Arrott-Noaks method, critical parameters were determined to be \(\beta 0.464 \pm 0.021\), \(\ga

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27

Troyanchuk, I. O., M. V. Bushinsky, V. Efimov, S. Schorr, C. Ritter, and V. Sikolenko. "Ferromagnetic ordering in La0.7Sr0.3Mn3+0.85Nb5+0.15O3 manganite." Powder Diffraction 30, S1 (2015): S97—S100. http://dx.doi.org/10.1017/s0885715615000032.

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Structural measurements have been performed on the La0.7Sr0.3Mn3+0.85Nb5+0.15O3 compound with oxidation state of manganese close to +3. The composition undergoes a structural transition from rhombohedral to orthorhombic symmetry below room temperature. The calculated structural parameters show that the orthorhombic phase is not long-range orbitally ordered and that the structural transition is associated with a steric effect. The compound is ferromagnetic with a Curie point of around 150 K and a magnetic moment of 3.1 μB/Mn. It is suggested that ferromagnetism is originated from superexchange

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28

Nan, Tianxiang, Yeonbae Lee, Shihao Zhuang, et al. "Electric-field control of spin dynamics during magnetic phase transitions." Science Advances 6, no. 40 (2020): eabd2613. http://dx.doi.org/10.1126/sciadv.abd2613.

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Controlling magnetization dynamics is imperative for developing ultrafast spintronics and tunable microwave devices. However, the previous research has demonstrated limited electric-field modulation of the effective magnetic damping, a parameter that governs the magnetization dynamics. Here, we propose an approach to manipulate the damping by using the large damping enhancement induced by the two-magnon scattering and a nonlocal spin relaxation process in which spin currents are resonantly transported from antiferromagnetic domains to ferromagnetic matrix in a mixed-phased metallic alloy FeRh.

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29

Zvereva, E. A., O. A. Savelieva, S. Ibragimov, E. Samokhvalov, E. I. Slynko, and V. E. Slyn'ko. "ESR Study of Novel Room-Temperature Ferromagnetic Semiconductors Pb_1-X-YSn_xCr_yTe." Solid State Phenomena 168-169 (December 2010): 404–7. http://dx.doi.org/10.4028/www.scientific.net/ssp.168-169.404.

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We report on the magnetic properties of novel diluted magnetic semiconductors Pb1 x ySnxCryTe revealing ferromagnetism at temperatures higher than room temperature. Depending on chromium concentration the Curie temperature varies in a wide range (150360 K) and effective magnetic moment achieves 1 B upon an increase of chromium doping level. Electron spin resonance (ESR) spectra in the paramagnetic phase were satisfactory approximated by a single Dysonian line. Effective g-factor tends to the saturation value g=2.080.01, while the linewidth passes through a minimum in the vicinity of magneti

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30

Shao, Jian, Hao Liu, Kai Zhang, et al. "Emerging single-phase state in small manganite nanodisks." Proceedings of the National Academy of Sciences 113, no. 33 (2016): 9228–31. http://dx.doi.org/10.1073/pnas.1609656113.

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In complex oxides systems such as manganites, electronic phase separation (EPS), a consequence of strong electronic correlations, dictates the exotic electrical and magnetic properties of these materials. A fundamental yet unresolved issue is how EPS responds to spatial confinement; will EPS just scale with size of an object, or will the one of the phases be pinned? Understanding this behavior is critical for future oxides electronics and spintronics because scaling down of the system is unavoidable for these applications. In this work, we use La0.325Pr0.3Ca0.375MnO3 (LPCMO) single crystalline

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31

Wang, Liyan, Zongguo Li, Cong Wang, Xue Gong, and Changzheng Wang. "Phase Transition-Induced Modulation of Exchange Bias in Fe/BiFeO3 Bilayers." Science of Advanced Materials 12, no. 5 (2020): 701–6. http://dx.doi.org/10.1166/sam.2020.3710.

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Many of researches indicate that epitaxial BiFeO3 (BFO) films deposited on LaAlO3 (LAO) substrate undergo strain-driven phase transition from a tetragonal-like phase (T-BFO) to a rhombohedral-like phase (R-BFO), and a mixed phase (M-BFO) that T-BFO coexists with R-BFO forms in the phase transition process. It is necessary to explore how BFO phase transition affects the exchange bias in ferromagnet (FM)/BFO bilayers. In our studies, aforementioned BFO phase transition is accomplished by varying BFO films thickness. Using 5 nm-thick Fe as ferromagnetic layer deposited on 9–354 nm-thick BFO as an

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32

Bhide, M. K., R. M. Kadam, A. K. Tyagi, et al. "Unusual magnetic properties of Mn-doped ThO2 nanoparticles." Journal of Materials Research 23, no. 2 (2008): 463–72. http://dx.doi.org/10.1557/jmr.2008.0064.

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We report the synthesis of Th1–xMnxO2 (x = 0, 0.001, 0.002, 0.004, and 0.01 wt%) nanoparticles by the urea combustion method using thorium nitrate gel followed by heat treatment at a higher temperature (T). The obtained Th1–xMnxO2 nanocrystals were characterized by x-ray diffraction (XRD), direct-current magnetization (M) measurements and electron paramagnetic resonance (EPR). XRD analysis revealed that Th1–xMnxO2 crystallizes in the cubic structure (Fm3m). M measurements showed ferromagnetic ordering at room temperature for Th0.99Mn0.01O2 samples annealed at 775 K. An intense and broad ferrom

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33

Yi, H., J. Yu, and S. I. Lee. "Coexistence of antiferromagnetic and ferromagnetic phase for ferromagnetic Kondo lattice model." European Physical Journal B 7, no. 4 (1999): 509–12. http://dx.doi.org/10.1007/s100510050639.

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34

SATO, MASAHIRO, SHUNSUKE FURUKAWA, SHIGEKI ONODA, and AKIRA FURUSAKI. "COMPETING PHASES IN SPIN-½ J1-J2 CHAIN WITH EASY-PLANE ANISOTROPY." Modern Physics Letters B 25, no. 12n13 (2011): 901–8. http://dx.doi.org/10.1142/s0217984911026607.

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We summarize our theoretical findings on the ground-state phase diagram of the spin-½ XXZ chain having competing nearest-neighbor (J1) and antiferromagnetic next-nearest-neighbor (J2) couplings. Our study is mainly concerned with the case of ferromagnetic J1, and the case of antiferromagnetic J1 is briefly reviewed for comparison. The phase diagram contains a rich variety of phases in the plane of J1/J2 versus the XXZ anisotropy Δ: vector-chiral phases, Néel phases, several dimer phases, and Tomonaga–Luttinger liquid phases. We discuss the vector-chiral order that appears for a remarkably wide

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35

KAR, MANORANJAN, and S. RAVI. "STUDY OF ELECTRICAL TRANSPORT AND AC SUSCEPTIBILITY IN LaMn1-xCuxO3." Modern Physics Letters B 19, no. 06 (2005): 317–30. http://dx.doi.org/10.1142/s0217984905008323.

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LaMn 1-x Cu x O 3 compounds have been prepared in single phase form for x = 0 to 0.30. X-ray diffraction patterns recorded at room temperature could be mostly refined using Pbnm space group. Paramagnetic-to-ferromagnetic transitions have been observed up to x = 0.30, from ac susceptibility measurements. Metal–insulator transition in the vicinity of ferromagnetic transition temperature has been observed for x = 0.05 and the resistivity data in the metallic region could be explained in terms of electron–electron and electron–magnon scattering mechanisms. Further increase in Cu-doping beyond x =

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36

GOR'KOV, L. P., and V. Z. KRESIN. "LARGE EFFECTS OF MAGNETIC FIELD ON JOSEPHSON CURRENTS THROUGH ANTIFERROMAGNETIC BARRIERS." International Journal of Modern Physics B 16, no. 20n22 (2002): 3316. http://dx.doi.org/10.1142/s0217979202014280.

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Ferromagnetism being known to have a detrimental effect on superconductivity, we consider the Josephson current amplitude for junctions built up of antiferromagnetic metallic weak links. It is assumed that the latter consist of ferromagnetic layers with magnetizations aligned alternatively along perpendicular-to-the-layers direction. Currents between two superconducting electrodes flow along the layers. Such antiferromagnetic structure realizes itself in mixed valence manganites (the so-called A-phase), in an array of parallel ferromagnetic domains, or even in artificial GMR heterostructures.

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37

POVZNER, A. A., and D. V. LIKHACHEV. "SPIN FLUCTUATION THEORY FOR TEMPERATURE-INDUCED FERROMAGNETISM IN ITINERANT ANTIFERROMAGNETS AND PARAMAGNETS." International Journal of Modern Physics B 09, no. 10 (1995): 1171–84. http://dx.doi.org/10.1142/s0217979295000495.

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The possible occurrence of “temperature-induced ferromagnetism” in itinerant antiferromagnets with spin-density wave and strong paramagnets is discussed on the basis of spin fluctuation theory taking account of the effect of large ferromagnetic spin fluctuations. It is shown that the presence of a point of inflexion of the density of states near the Fermi level leads to the appearance of temperature-induced ferromagnetic order parameter in the itinerant electron systems. In addition the influence of this order parameter on the antiferromagnetic transition temperature is demonstrated and new me

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38

Gabay, A. M., and V. S. Gaviko. "Ferromagnetic Zr1−xMnxCo2 laves phase compounds." Journal of Magnetism and Magnetic Materials 260, no. 3 (2003): 425–30. http://dx.doi.org/10.1016/s0304-8853(02)01384-7.

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39

Li, Z. Q., H. Liu, Y. H. Cheng, et al. "Ferromagnetic clusters and phase separation in." Physica B: Condensed Matter 353, no. 3-4 (2004): 324–30. http://dx.doi.org/10.1016/j.physb.2004.10.014.

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40

Ma, Tian, and Shouhong Wang. "Dynamic phase transitions for ferromagnetic systems." Journal of Mathematical Physics 49, no. 5 (2008): 053506. http://dx.doi.org/10.1063/1.2913504.

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41

Loudon, James C., Neil D. Mathur, and Paul A. Midgley. "Charge-ordered ferromagnetic phase in La0.5Ca0.5MnO3." Nature 420, no. 6917 (2002): 797–800. http://dx.doi.org/10.1038/nature01299.

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42

Endo, Y. "Phase Transitions of Heisenberg Ferromagnetic Superlattices." physica status solidi (b) 161, no. 1 (1990): 379–85. http://dx.doi.org/10.1002/pssb.2221610138.

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43

Grigor’ev, S. V., and B. M. Darinskii. "Improper ferromagnetic phase transitions in crystals." Crystallography Reports 50, no. 5 (2005): 814–16. http://dx.doi.org/10.1134/1.2049401.

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44

Goto, T., H. Aruga Katori, T. Sakakibara, and M. Yamaguchi. "Successive phase transitions in ferromagnetic YCo3." Physica B: Condensed Matter 177, no. 1-4 (1992): 255–58. http://dx.doi.org/10.1016/0921-4526(92)90107-4.

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45

Gruber, Christian, and Robert B. Griffiths. "Phase transition in a ferromagnetic fluid." Physica A: Statistical Mechanics and its Applications 138, no. 1-2 (1986): 220–30. http://dx.doi.org/10.1016/0378-4371(86)90182-2.

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46

Rowley, Stephen, Robert Smith, Mark Dean, et al. "Ferromagnetic and ferroelectric quantum phase transitions." physica status solidi (b) 247, no. 3 (2010): 469–75. http://dx.doi.org/10.1002/pssb.200983081.

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47

Pechnikov, Vladimir S. "Definition of Amorphous Tapes Magnetic Condition Using Temperature Dependence of the Saturation Magnetic Moment." Solid State Phenomena 215 (April 2014): 268–71. http://dx.doi.org/10.4028/www.scientific.net/ssp.215.268.

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In article results of research of the saturation magnetic moment temperature dependence of ferromagnetic amorphous tapes on an iron and cobalt basis, and also one not ferromagnetic amorphous tape are described. It is shown that in an initial condition not all atoms of magnetic elements are in a ferromagnetic phase. Temperature dependence of the saturation moment of a ferromagnetic phase of amorphous tapes is well described by Brillouin's function. Possibility of quantitative definition of part of the magnetic atoms forming not ferromagnetic phase of a tape is proved. It is shown that the tape

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48

Khadke, U. V. "The Energy Loss of α-Particles in Ferromagnetic Nickel at Phase Transition". Journal of Materials 2016 (17 серпня 2016): 1–3. http://dx.doi.org/10.1155/2016/4576194.

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The energy loss (EL) of 5.486 MeV α-particles in ferromagnetic nickel foils was measured at different temperatures of the foils. The temperature of the foils was controlled and recorded using a PC-based temperature controller with an accuracy of ±0.01°C. It is observed that the energy loss in ferromagnetic nickel increases by 2–5% as the material goes from ferromagnetic to paramagnetic state. Thus our results show that the phase transition in ferromagnetic materials affects energy loss.

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49

Korpinar, Talat. "Geometric magnetic phase for timelike spherical optical ferromagnetic model." International Journal of Geometric Methods in Modern Physics 18, no. 07 (2021): 2150099. http://dx.doi.org/10.1142/s0219887821500997.

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In this paper, we give some constructions for the applications of optical magnetic Heisenberg spherical ferromagnetic chain of T - timelike magnetic particle by spherical de Sitter frame in de Sitter space. This aim may be concluded by well-known de Sitter frame or a new alternative spherical frame with an optical magnetic spherical Heisenberg ferromagnetic chain. Moreover, we achieve total magnetic phases of T - timelike magnetic particle evolutions. Finally, we obtain some numerical modeling of optical magnetic spherical Heisenberg ferromagnetic flows.

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50

Rojas, D. P., N. Marcano, and J. C. Gómez Sal. "Clusterization Phenomena and Magnetic Phase Transitions in Rare Earth Intermetallics." Solid State Phenomena 170 (April 2011): 270–75. http://dx.doi.org/10.4028/www.scientific.net/ssp.170.270.

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Two cases of anomalous phase transitions in Ce intermetallics are presented. In CeIn2 multiple signatures of a first order paramagnetic-ferromagnetic transition at 22 K have been experimentally detected. We discuss possible mechanisms for such behaviour and the new studies in the La1-xCexIn2 series. In the he case of CeNi1-xCux the low temperature ferromagnetic long range order appears owing to a magnetic cluster percolation process, from a cluster glass state established above the ferromagnetic state.

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