Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session K46: Complex Oxide Interfaces & Heterostructures -- Interfacial two dimensional electron gas
8:00 AM–11:00 AM,
Wednesday, March 6, 2019
BCEC
Room: 212
Sponsoring
Unit:
DMP
Chair: Hanghui Chen, New York University
Abstract: K46.00004 : Determination of Spin-Orbit Scattering Lifetime at the Interface of LaAlO3/SrTiO3 from the Superconducting Upper Critical Fields*
9:00 AM–9:12 AM
Presenter:
Wei-Li Lee
(Institute of Physics, Academia Sinica)
Authors:
Wei-Li Lee
(Institute of Physics, Academia Sinica)
Akhilesh Singh
(Institute of Physics, Academia Sinica)
Tsung-Chi Wu
(Institute of Physics, Academia Sinica)
Ming-Yuan Song
(Institute of Physics, Academia Sinica)
Ming-Chin Chen
(Institute of Physics, Academia Sinica)
Chi-Sheng Li
(Institute of Physics, Academia Sinica)
and Klemm-Luther-Beasley model, the spin-orbit scattering lifetime can be determined with high precision in superconducting state. We found that the extracted spin-orbit lifetime monotonically increase with the transport lifetime that spanned over two orders of magnitude in the regime with sheet density higher than that at Liftshitz point. Those results suggest the dominant role of Elliott-Yafet type spin-relaxation. Comparison to the weak localization fittings will be presented and discussed.
*We acknowledge the funding support from MoST Taiwan (MOST 105-2112-M-001 -012 -MY3).
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