Magnetoresistance and spin-transfer torque effects in soft CoSiBFeNb magnets

被引：0
|
作者：
Seinige, Heidi [1 ,2 ]
Tsoi, Maxim [1 ]
机构：
[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA
[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 487卷
关键词：
MULTILAYER; EXCITATION;
D O I：
10.1016/j.jmmm.2019.165279
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetotransport properties of ultra-soft magnets were studied on both macroscopic and microscopic scales by performing bulk and point-contact measurements, respectively, in CoSiBFeNb ribbons prepared by melt spinning technique. While the bulk measurements did not show any variations in dc resistance as a function of applied magnetic field (zero magnetoresistance), the point-contact measurements revealed giant-magnetoresistance-like changes in the resistance of small volumes (10(6)-10(9)nm(3)) associated with the contacts. A high-density current applied to the contacts was found to affect the point-contact magnetoresistance - the magnetic field where resistive switching occurs was found to shift with the applied dc bias. The magnetotransport effects observed on the microscopic scale could be attributed to specific local configurations of magnetic domains in CoSiBFeNb and effects of spin-transfer torque on the domain configurations.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Spin-transfer torque and magnetoresistance in superconducting spin valves
    Linder, Jacob
    Yokoyama, Takehito
    Sudbo, Asle
    [J]. PHYSICAL REVIEW B, 2009, 79 (22):
  • [2] Magnetoresistance and spin-transfer torque in magnetic tunnel junctions
    Sun, J. Z.
    Ralph, D. C.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2008, 320 (07) : 1227 - 1237
  • [3] Spin-transfer torque and dynamics
    Stiles, Mark D.
    Miltat, Jacques
    [J]. SPIN DYNAMICS IN CONFINED MAGNETIC STRUCTURES III, 2006, 101 : 225 - 308
  • [4] Anatomy of spin-transfer torque
    Stiles, MD
    Zangwill, A
    [J]. PHYSICAL REVIEW B, 2002, 66 (01) : 144071 - 1440714
  • [5] Spin-transfer torque switching in magnetic tunnel junctions and spin-transfer torque random access memory
    Diao, Zhitao
    Li, Zhanjie
    Wang, Shengyuang
    Ding, Yunfei
    Panchula, Alex
    Chen, Eugene
    Wang, Lien-Chang
    Huai, Yiming
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (16)
  • [6] Spin-transfer and topological Hall effects in itinerant frustrated magnets
    Zarzuela, Ricardo
    Sinova, Jairo
    [J]. PHYSICAL REVIEW B, 2023, 108 (13)
  • [7] Evidence for Thermal Spin-Transfer Torque
    Yu, Haiming
    Granville, S.
    Yu, D. P.
    Ansermet, J. -Ph.
    [J]. PHYSICAL REVIEW LETTERS, 2010, 104 (14)
  • [8] Spin-transfer torque in ferromagnetic bilayers generated by anomalous Hall effect and anisotropic magnetoresistance
    Taniguchi, Tomohiro
    Grollier, Julie
    Stiles, M. D.
    [J]. SPINTRONICS IX, 2016, 9931
  • [9] Magnetization dynamics with a spin-transfer torque
    Li, Z
    Zhang, S
    [J]. PHYSICAL REVIEW B, 2003, 68 (02)
  • [10] Correlation of the angular dependence of spin-transfer torque and giant magnetoresistance in the limit of diffusive transport in spin valves
    Gmitra, M.
    Barnas, J.
    [J]. PHYSICAL REVIEW B, 2009, 79 (01)
12345