Negative GMR Effect in current perpendicular-to-plane (Zn,Cr)Te/Cu/Co spin salves

W. G. Wang; C. Ni; L. R. Shah; X. M. Kou; J. Q. Xiao

Negative GMR Effect in current perpendicular-to-plane (Zn,Cr)Te/Cu/Co spin salves

Mesoscale and Nanoscale Physics 2022-11-14 v1 Materials Science

Authors: W. G. Wang , C. Ni , L. R. Shah , X. M. Kou , J. Q. Xiao

Abstract

Magnetic and transport properties are explored in the current perpendicular-to-plane (CPP) spin salves with Cr doped wide band gap semiconductor ZnTe as one of the ferromagnetic electrodes. A negative magnetoresistance is observed in these CPP spin valves at low temperature, with a strong temperature dependence. This effect can be explained by the large difference of spin scattering asymmetry coefficients in (Zn,Cr)Te and Cobalt, due to the very different spin polarizations of the two materials as revealed by the DFT calculation.

Keywords

negative magnetoresistance spin valve current perpendicular-to-plane zinc telluride chromium doping density functional theory

Cite

@article{arxiv.2211.05941,
  title  = {Negative GMR Effect in current perpendicular-to-plane (Zn,Cr)Te/Cu/Co spin salves},
  author = {W. G. Wang and C. Ni and L. R. Shah and X. M. Kou and J. Q. Xiao},
  journal= {arXiv preprint arXiv:2211.05941},
  year   = {2022}
}

Negative GMR Effect in current perpendicular-to-plane (Zn,Cr)Te/Cu/Co spin salves

Abstract

Keywords

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