Circular photogalvanic effect in CdSe nanowires at room temperature

Ning Tang, Shan Zhang, Junxi Duan, Xin He, Lun Dai, Weikun Ge, Bo Shen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The anisotropy of Dresselhaus spin-orbit coupling (SOC) in cadmium selenide (CdSe) nanobelt and nanowire was studied by circular photogalvanic effect and it was demonstrated that the Dresselhuas SOC parameter is zero along [0001] crystallographic direction. The zero Dresselhaus SOC suppresses the spin relaxation and increases the spin diffusion length, which is beneficial to spin manipulation. To achieve a device structure with Rashba SOC presence and Dresselhaus SOC absence to manipulate spin degree of freedom, ionic liquid gate was applied on a nanowire grown along [0001] crystallographic direction, and Rashba SOC was induced as expected.

Original languageEnglish
Title of host publication2016 Compound Semiconductor Week, CSW 2016 - Includes 28th International Conference on Indium Phosphide and Related Materials, IPRM and 43rd International Symposium on Compound Semiconductors, ISCS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509019649
DOIs
Publication statusPublished - 1 Aug 2016
Externally publishedYes
Event2016 Compound Semiconductor Week, CSW 2016 - Toyama, Japan
Duration: 26 Jun 201630 Jun 2016

Publication series

Name2016 Compound Semiconductor Week, CSW 2016 - Includes 28th International Conference on Indium Phosphide and Related Materials, IPRM and 43rd International Symposium on Compound Semiconductors, ISCS 2016

Conference

Conference2016 Compound Semiconductor Week, CSW 2016
Country/TerritoryJapan
CityToyama
Period26/06/1630/06/16

Keywords

  • CdSe nanobelt/nanowire
  • Dresselhuas SOC
  • Rashba spin orbit coupling (SOC)
  • circular photogalvanic effect
  • ionic liquid

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