Multichannel Exchange-Scattering Spin Polarimetry

Fuhao Ji, Tan Shi, Mao Ye, Weishi Wan, Zhen Liu, Jiajia Wang, Tao Xu, and Shan Qiao
Phys. Rev. Lett. 116, 177601 – Published 28 April 2016
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Abstract

Electron spin plays important roles in determining the physical and chemical properties of matter. However, measurements of electron spin are of poor quality, impeding the development of material sciences, because the spin polarimeter has a low efficiency. Here, we show an imaging-type exchange-scattering spin polarimeter with 6786 channels and an 8.5×103 single channel efficiency. As a demonstration, the fine spin structure of the electronic states in bismuth (111) is investigated, for which strong Rashba-type spin splitting behavior is seen in both the bulk and surface states. This improvement paves the way to study novel spin related phenomena with unprecedented accuracy.

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  • Received 10 June 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.177601

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Fuhao Ji2, Tan Shi2, Mao Ye1, Weishi Wan3, Zhen Liu2, Jiajia Wang4, Tao Xu4, and Shan Qiao1,4,*

  • 1State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China
  • 2Physics Department, Laboratory of Advanced Materials, and Surface Physics Laboratory (National Key Laboratory), Fudan University, 2005 Songhu Road, Shanghai 200438, China
  • 3Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
  • 4School of Physical Science and Technology, ShanghaiTech University, 319 Yueyang Road, Shanghai 200031, China

  • *qiaoshan@mail.sim.ac.cn;

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Issue

Vol. 116, Iss. 17 — 29 April 2016

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