scholarly journals Ultra-low magnetic damping of a metallic ferromagnet

2016 ◽  
Vol 12 (9) ◽  
pp. 839-842 ◽  
Author(s):  
Martin A. W. Schoen ◽  
Danny Thonig ◽  
Michael L. Schneider ◽  
T. J. Silva ◽  
Hans T. Nembach ◽  
...  
Keyword(s):  
Magnetic Damping ◽  
Metallic Ferromagnet

scholarly journals Ultralow magnetic damping of a common metallic ferromagnetic film

2021 ◽  
Vol 7 (4) ◽  
pp. eabc5053
Author(s):  
Yanping Wei ◽  
Wenjing Zhang ◽  
Bing Lv ◽  
Xia Xu ◽  
Shibo Xi ◽  
...  
Keyword(s):  
Electron Scattering ◽  
Linear Response ◽  
Ferromagnetic Film ◽  
Surface Model ◽  
Magnetic Damping ◽  
Quantitative Calculation ◽  
Theoretical Approaches ◽  
Damping Parameter ◽  
Metallic Ferromagnet ◽  
Damping Model

For most magnetic materials, ultralow damping is of key importance for spintronic and spin-orbitronic applications, but the number of materials suitable for charge-based spintronic and spin-orbitronic applications is limited because of magnon-electron scattering. However, some theoretical approaches including the breathing Fermi surface model, generalized torque correlation model, scattering theory, and linear response damping model have been presented for the quantitative calculation of transition metallic ferromagnet damping. For the Fe-Co alloy, an ultralow intrinsic damping approaching 10−4 was first theoretically predicted using a linear response damping model by Mankovsky et al. and then experimentally observed by Schoen et al. Here, we experimentally report a damping parameter approaching 1.5 × 10−3 for traditional fundamental iron aluminide (FeAl) soft ferromagnets that is comparable to those of 3d transition metallic ferromagnets and explain this phenomenon based on the principle of minimum electron density of states.

scholarly journals The role of iron in magnetic damping of Mg(Al,Fe)2O4 spinel ferrite thin films

2020 ◽  
Vol 116 (14) ◽  
pp. 142406 ◽  
Author(s):  
Jacob J. Wisser ◽  
Lauren J. Riddiford ◽  
Aaron Altman ◽  
Peng Li ◽  
Satoru Emori ◽  
...  
Keyword(s):  
Thin Films ◽  
Spinel Ferrite ◽  
Magnetic Damping ◽  
Ferrite Thin Films

The Enhancement of Magnetic Damping in Fe4N Films with Increasing Thickness

2013 ◽  
Vol 52 (7R) ◽  
pp. 073001 ◽  
Author(s):  
Shinji Isogami ◽  
Masakiyo Tsunoda ◽  
Mikihiko Oogane ◽  
Akimasa Sakuma ◽  
Migaku Takahashi
Keyword(s):  
Magnetic Damping

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

A magnetic damping device for watt and joule balances

2016 ◽  
Author(s):  
Jinxin Xu ◽  
Qiang You ◽  
Zhonghua Zhang ◽  
Zhengkun Li ◽  
Shisong Li
Keyword(s):  
Magnetic Damping

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

Thickness-Dependence of Magnetic Damping Related to Two-Magnon Scattering in Ultrathin Ni 0.81Fe 0.19 Films

2021 ◽  
Author(s):  
Yaojin Li ◽  
Chunlei Li ◽  
Qin Du ◽  
Keqing Shi ◽  
Ziyao Zhou ◽  
...  
Keyword(s):  
Thickness Dependence ◽  
Magnetic Damping

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 Author Correction: 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

scholarly journals Low magnetic damping and large negative anisotropic magnetoresistance in half-metallic Co2−xMn1+xSi Heusler alloy films grown by molecular beam epitaxy

2018 ◽  
Vol 112 (26) ◽  
pp. 262407 ◽  
Author(s):  
Mikihiko Oogane ◽  
Anthony P. McFadden ◽  
Kenji Fukuda ◽  
Masakiyo Tsunoda ◽  
Yasuo Ando ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Heusler Alloy ◽  
Molecular Beam ◽  
Anisotropic Magnetoresistance ◽  
Half Metallic ◽  
Alloy Films ◽  
Magnetic Damping
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