English

Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures

Materials Science 2015-06-23 v1 Mesoscale and Nanoscale Physics
Authors: Kulothungasagaran Narayanapillai , Kalon Gopinadhan , Xuepeng Qiu , Anil Annadi , Ariando , Thirumalai Venkatesan , Hyunsoo Yang
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Abstract

We demonstrate a current tunable Rashba spin orbit interaction in LaAlO3/SrTiO3 (LAO/STO) quasi two dimensional electron gas (2DEG) system. Anisotropic magnetoresistance (AMR) measurements are employed to detect and understand the current-induced Rashba field. The effective Rashba field scales with the current and a value of 2.35 T is observed for a dc-current of 200 uA. The results suggest that LAO/STO heterostructures can be considered for spin orbit torque based magnetization switching.

Keywords

rashba spin-orbit coupling frustrated magnetism

Cite

@article{arxiv.1410.0456,
  title  = {Current-driven spin orbit field in LaAlO3/SrTiO3 heterostructures},
  author = {Kulothungasagaran Narayanapillai and Kalon Gopinadhan and Xuepeng Qiu and Anil Annadi and Ariando and Thirumalai Venkatesan and Hyunsoo Yang},
  journal= {arXiv preprint arXiv:1410.0456},
  year   = {2015}
}

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