SSRL/LCLS

Abstract Details

Development of a Laser Based Spin-resolved ARPES Spectrometer
Abstract IDI&D-01 
PresenterYulin  Chen
Presentation TypePoster
Full Author ListY. Chen (1) , Z. Liu (1) , J. Sobota (1) , Z. Hussain (2) , Z. X. Shen (1)
Affiliations(1) Stanford University and SSRL, USA
(2) Advanced Light Source, Lawrence Berkeley National Laboratory
CategoryInstrumentation/Development
AbstractAngle Resolved Photoemission spectroscopy (ARPES) has been established as one of the most important methods to study the electronic structure of molecules, solids and surfaces. It has widespread practical implications in various fields and has significantly contributed to the understanding of fundamental principles in solid state physics.

However, regular ARPES spectrometers don’t detect the electron spin thus leave the samples’ magnetic information out of scope. To solve this problem, we developed a spin-resolved ARPES spectrometer by combing a regular hemispherical dispersive analyzer and a Mott spin polarimeter. This new spectrometer enables us to measure the photoelectron spin (all three components) as well as its energy and momentum. The new spectrometer, when coupled with our fs-second UV laser system, further extends the PES study into time-domain, providing us the opportunity to study the electronic and spin dynamics.
Footnotes 
Funding Acknowledgement