scholarly journals A spin triplet supercurrent through the half-metallic ferromagnet CrO2

Nature ◽  
2006 ◽  
Vol 439 (7078) ◽  
pp. 825-827 ◽  
Author(s):  
R. S. Keizer ◽  
S. T. B. Goennenwein ◽  
T. M. Klapwijk ◽  
G. Miao ◽  
G. Xiao ◽  
...  
Keyword(s):  
Half Metallic ◽  
Spin Triplet ◽  
Metallic Ferromagnet

scholarly journals FIRST-PRINCIPLES CALCULATIONS OF SPIN-TRIPLET ANDREEV REFLECTION SPECTRA AT HALF-METALLIC FERROMAGNET/SUPERCONDUCTOR INTERFACE

2012 ◽  
Vol 26 (31) ◽  
pp. 1250205 ◽  
Author(s):  
LING TANG
Keyword(s):  
First Principles ◽  
Andreev Reflection ◽  
Magnetic Moments ◽  
S Wave ◽  
Interfacial Roughness ◽  
Zero Bias ◽  
Half Metallic ◽  
Magnetic Disorder ◽  
Spin Triplet ◽  
Metallic Ferromagnet

Combining the first-principles noncollinear calculations of scattering matrices with Andreev approximation, we investigated the spin-triplet Andreev reflection (AR) spectra for the interface between half-metallic ferromagnet Co 2 MnSi and s-wave BCS superconductor Al with and without interfacial roughness, where the orientations of magnetic moments near the interface are randomly distributed. The calculated results show that the AR spectra have peak structures near zero bias for the clean interface with relative weak magnetic disorder. With the increasing degree of interfacial roughness or magnetic disorder, these subgap peaks of conductance spectra will be washed out. The results also show that the value of subgap conductance spectrum can be raised significantly by the magnetic disorder. Finally, our calculations reveal that the long-range spin-triplet AR in Co 2 MnSi / Al (001) interface can be enhanced by a small amount of interfacial roughness.

Study of Co2MnAl Heusler alloy as half metallic ferromagnet

2010 ◽  
Vol 84 (6) ◽  
pp. 717-721 ◽  
Author(s):  
Dibya Prakash Rai ◽  
Javad Hashemifar ◽  
Morteeza Jamal ◽  
Lalmuanpuia ◽  
M. P. Ghimire ◽  
...  
Keyword(s):  
Heusler Alloy ◽  
Half Metallic ◽  
Metallic Ferromagnet

The effect of lanthanide impurities on the physical properties of half-metallic ferromagnet Co2MnSi

2008 ◽  
Vol 255 (3) ◽  
pp. 685-687 ◽  
Author(s):  
R. Tetean ◽  
L. Chioncel ◽  
E. Burzo ◽  
N. Bucur ◽  
A. Bezergheanu ◽  
...  
Keyword(s):  
Physical Properties ◽  
Half Metallic ◽  
Metallic Ferromagnet

scholarly journals Spin Gapless Semiconductor–Nonmagnetic Semiconductor Transitions in Fe-Doped Ti2CoSi: First-Principle Calculations

2018 ◽  
Vol 8 (11) ◽  
pp. 2200 ◽  
Author(s):  
Yu Feng ◽  
Zhou Cui ◽  
Ming-sheng Wei ◽  
Bo Wu ◽  
Sikander Azam
Keyword(s):  
Magnetic Moment ◽  
Electronic Structures ◽  
Magnetic Moments ◽  
Total Magnetic Moment ◽  
First Principle ◽  
Half Metallic ◽  
Heusler Compound ◽  
First Principle Calculations ◽  
Metallic Ferromagnet

Employing first-principle calculations, we investigated the influence of the impurity, Fe atom, on magnetism and electronic structures of Heusler compound Ti2CoSi, which is a spin gapless semiconductor (SGS). When the impurity, Fe atom, intervened, Ti2CoSi lost its SGS property. As TiA atoms (which locate at (0, 0, 0) site) are completely occupied by Fe, the compound converts to half-metallic ferromagnet (HMF) TiFeCoSi. During this SGS→HMF transition, the total magnetic moment linearly decreases as Fe concentration increases, following the Slate–Pauling rule well. When all Co atoms are substituted by Fe, the compound converts to nonmagnetic semiconductor Fe2TiSi. During this HMF→nonmagnetic semiconductor transition, when Fe concentration y ranges from y = 0.125 to y = 0.625, the magnetic moment of Fe atom is positive and linearly decreases, while those of impurity Fe and TiB (which locate at (0.25, 0.25, 0.25) site) are negative and linearly increase. When the impurity Fe concentration reaches up to y = 1, the magnetic moments of Ti, Fe, and Si return to zero, and the compound is a nonmagnetic semiconductor.

scholarly journals Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Qi Wang ◽  
Yuanfeng Xu ◽  
Rui Lou ◽  
Zhonghao Liu ◽  
Man Li ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Half Metallic ◽  
Metallic Ferromagnet ◽  
Weyl Fermions

Extremely long-range, high-temperature Josephson coupling across a half-metallic ferromagnet

2021 ◽  
Author(s):  
D. Sanchez-Manzano ◽  
S. Mesoraca ◽  
F. A. Cuellar ◽  
M. Cabero ◽  
V. Rouco ◽  
...  
Keyword(s):  
High Temperature ◽  
Long Range ◽  
Josephson Coupling ◽  
Half Metallic ◽  
Metallic Ferromagnet

scholarly journals A new diluted magnetic semiconductor: The half-metallic ferromagnet CoTi1−xFexSb

2008 ◽  
Vol 103 (7) ◽  
pp. 07D115 ◽  
Author(s):  
Benjamin Balke ◽  
Kristian Kroth ◽  
Gerhard H. Fecher ◽  
Claudia Felser
Keyword(s):  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Half Metallic ◽  
Diluted Magnetic ◽  
Metallic Ferromagnet
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