Spin-flip scattering of Rashba-induced spin-split surface band electrons by magnetic atoms

2014 Fiscal Year Final Research Report

• Project/Area Number: 25600095
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: HIRAYAMA Hiroyuki 東京工業大学, 総合理工学研究科(研究院), 教授 (60271582)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 表面 / 電子散乱 / スピン / ラシュバ効果

Outline of Final Research Achievements

We studied the growth, structure adn electronic structure of Co atom adsorbed Bi/Ag(111)√3x√3 surface system. Co atoms nucleated atomically flat, triangular islands with an interface-induced Moire pattern. The d-band of the Co islands were found to shift to the Fermi level systematically with the increase in the Co island thickness.
We also studied a new surface alloy phase of Bi atoms and Si(111)√3x√3-Ag surface, and ultra-thin Bi(110) islands as candidates of the alternative sysytem with a large spin-split surface band by the Rashba effect and robust against Co atom adsorption.

Free Research Field

表面界面物性