大型放射光施設 SPring-8

Speaker : Moritz Hoesch

Language : English

Affiliation : Diamond Light Source, Group Leader

Title : Angle-Resolved Photoemission Spectroscopy at Diamond Light Source, the example of quasi-one dimensional Tl₂Mo₆Se₆

Abstract :
A beamline for high-resolution angle-resolved photoelectron spectroscopy(ARPES) has been built at Diamond Light Source in the United Kingdom. The full extent of the project will consist of two instruments, nano-ARPES that is currently under commissioning, and high-resolution HR-ARPES that started full operation in January 2014. In this seminar I will describe the implementation of HR-ARPES and its extended sample preparation facilities and gives a few examples of research that has been conducted.

As a particularly interesting case study I will present data from quasi-one-dimensional Tl₂Mo₆Se₆ where a survey of momentums spaces reveals an indeed highly one-dimensional Fermi surface and peculiar reduction of intensity near E_F that will be discussed in the context of Tomonaga-Luttinger liquid theory.

担当者 : 木下　豊彦
Mail : toyohiko@spring8.or.jp
PHS : 3129