e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
Conference -ISSS-8-
First-principles Study of Rashba Spin Splitting at Strained SrTiO3(001) Surfaces
Naoya YamaguchiFumiyuki Ishii
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2018 Volume 16 Pages 360-363

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Abstract

We investigated the Rashba spin splittings in a compressive-strained SrTiO3(001) ultra thin-film using first-principles calculations. The effect of the polarization due to the compressive strain leads to the 2DEG with large Rashba spin splittings, where the sheet carrier density is of the same order of magnitude as that of the heterostructure LaAlO3/SrTiO3 (∼1014 cm−2). Some localized surface states (SSs) show the giant Rashba coefficient αR larger than 100 meVÅ. [DOI: 10.1380/ejssnt.2018.360]

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