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arXiv · 1706.08256

Ferroelectric control of the giant Rashba spin orbit coupling in GeTe(111)/InP(111) superlattice

Yu-Hua Meng·Wei Bai·Heng Gao·Shi-Jing Gong·Chun-Gang Duan·Jun-Hao Chu
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Abstract

GeTe wins the renewed research interest due to its giant bulk Rashba spin orbit coupling (SOC), and becomes the father of a new multifunctional material, i.e., ferroelectric Rashba semiconductor. In the present work, we investigate Rashba SOC at the interface of the ferroelectric semiconductor superlattice GeTe(111)/InP(111) by using the first principles calculation. Contribution of the interface electric field and the ferroelectric field to Rashba SOC is revealed. A large modulation to Rashba SOC and a reversal of the spin polarization is obtained by switching the ferroelectric polarization. Our investigation about GeTe(111)/InP(111) superlattice is of great importance in the application of ferroelectric Rashba semiconductor in the spin field effect transistor.

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Yu-Hua Meng, Wei Bai, Heng Gao, Shi-Jing Gong, Chun-Gang Duan, Jun-Hao Chu. 2017-06-26. Ferroelectric control of the giant Rashba spin orbit coupling in GeTe(111)/InP(111) superlattice. https://arxiv.org/abs/1706.08256

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