Detection of spin-orbit coupling of surface electron layer via reciprocal spin Hall effect in InN films

F. H. Mei, N. Tang, X. Q. Wang, J. X. Duan, S. Zhang, Y. H. Chen, W. K. Ge, B. Shen

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Swirly photocurrent in InN films arising from reciprocal spin Hall effect (RSHE) is observed under normal incidence of circularly polarized light at room temperature. It is found that the swirly current is a superposition of the RSHE currents from the surface and bulk layer of InN. The effective spin-orbit coupling coefficient (SOC) in the surface electron layer is suggested to be of opposite sign to that in the bulk. The results constitute a comprehensive understanding of the role of surface electron layer in spin transport in InN. This work reveals an approach to explore spin-orbit coupling in systems like InN.

Original languageEnglish
Article number132404
JournalApplied Physics Letters
Volume101
Issue number13
DOIs
Publication statusPublished - 24 Sept 2012
Externally publishedYes

Fingerprint

Dive into the research topics of 'Detection of spin-orbit coupling of surface electron layer via reciprocal spin Hall effect in InN films'. Together they form a unique fingerprint.

Cite this