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High-Resolution Spin-Resolved Photoemission Spectrometer and the Rashba Effect in Bismuth Thin Films

  • Akari¬†Takayama
Book

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xii
  2. Akari Takayama
    Pages 1-13
  3. Akari Takayama
    Pages 79-80
  4. Back Matter
    Pages 81-83

About this book

Introduction

In this thesis, the author has developed a high-resolution spin-resolved photoemission spectrometer that achieves the world-best energy resolution of 8 meV. The author has designed a new, highly efficient mini Mott detector that has a large electron acceptance angle and an atomically flat gold target to enhance the efficiency of detecting scattered electrons.

 

The author measured the electron and spin structure of Bi thin film grown on a Si(111) surface to study the Rashba effect. Unlike the conventional Rashba splitting, an asymmetric in-plane spin polarization and a tremendous out-of-plane spin component were observed. Moreover, the author found that the spin polarization of Rashba surface states is reduced by decreasing the film thickness, which indicates the considerable interaction of Rashba spin-split states between the surface and Bi/Si interface.

Keywords

ARPES Bi/Si interface Bismuth Thin Film Rashba Effect Rashba Surface States Rashba-Dresselhaus Effect Spin-orbit Coupling Spin-resolved Photoemission Spintronics

Authors and affiliations

  • Akari¬†Takayama
    • 1
  1. 1.Department of Physics Graduate School of Science and Faculty of ScienceTohoku UniversitySendaiJapan

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