Nano-Micro Letters | |
Ballistic current induced effective force on magnetic domain wall | |
K. Xia1  C. Wang1  | |
关键词: Magnetic domain; Spin Transfer torque; Spintronics; First principle study; | |
DOI : 10.5101/nml.v1i1.p34-39 | |
来源: Open Access House of Science and Technology | |
【 摘 要 】
nbsp;nbsp;nbsp;Thecollectivedynamicsofmagneticdomainwallunderelectriccurrentisstudiedintheformofspintransfertorque(STT).Theout-of-planeSTTinducedeffectiveforceisobtainedbasedontheLandau-Lifshitz-Gilbert(LLG)equationincludingmicroscopicSTTterms.Therelationbetweenmicroscopiccalculationsandcollectivedescriptionofthedomainwallmotionisestablished.Withournumericalcalculationsbasedontightbindingfreeelectronmodel,wefindthatthenonadiabaticout-of-planetorquecomponentshaveconsiderablenon-localproperties.Itturnsoutthatthecalculatedeffectiveforcesdecaysignificantlywithincreasingdomainwallwidths.
【 授权许可】
Unknown
【 预 览 】
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