Akshaykumar Salimath, S. Chishti, A. Verma, B. Bishnoi, B. Ghosh
{"title":"Monte Carlo simulation of temperature and confinement dependent spin transport in germanium nanowire","authors":"Akshaykumar Salimath, S. Chishti, A. Verma, B. Bishnoi, B. Ghosh","doi":"10.1109/CDE.2013.6481375","DOIUrl":null,"url":null,"abstract":"In this paper spin polarized transport in Ge nanowires is studied by employing semiclassical Monte Carlo approach. Monte Carlo [2] approach is used since it is able to update spin evolution dynamically in step with the momentum evolution due to electron transport. Spin dephasing in Ge nanowire is caused by D'yakonov-Perel' relaxation[3,4] due to structural inversion asymmetry (Rashba spin-orbit coupling). Spin flip due to Elliott-Yafet[3] is also taken into account in the simulation, Spin relaxation is investigated in germanium nanowire with varying temperature and varying confinement. Electrons are injected polarized in z direction. The wire cross section is varied between 2×2 nm2 and 10×10 nm2.","PeriodicalId":6614,"journal":{"name":"2013 Spanish Conference on Electron Devices","volume":"22 1","pages":"191-194"},"PeriodicalIF":0.0000,"publicationDate":"2013-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 Spanish Conference on Electron Devices","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CDE.2013.6481375","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper spin polarized transport in Ge nanowires is studied by employing semiclassical Monte Carlo approach. Monte Carlo [2] approach is used since it is able to update spin evolution dynamically in step with the momentum evolution due to electron transport. Spin dephasing in Ge nanowire is caused by D'yakonov-Perel' relaxation[3,4] due to structural inversion asymmetry (Rashba spin-orbit coupling). Spin flip due to Elliott-Yafet[3] is also taken into account in the simulation, Spin relaxation is investigated in germanium nanowire with varying temperature and varying confinement. Electrons are injected polarized in z direction. The wire cross section is varied between 2×2 nm2 and 10×10 nm2.
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