Dresden 2020 – wissenschaftliches Programm
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TT 3.3: Vortrag
Montag, 16. März 2020, 10:00–10:15, HSZ 201
Spin Selective Quasi-Particle Interference in PdCoO2 — •Dibyashree Chakraborti1,2, Chi Ming Yim1, Luke Rhodes1, Seunghyun Khim2, Andrew Mackenzie1,2, and Peter Wahl1 — 1School of Physics and Astronomy, St. Andrews, Scotland, United Kingdom, KY169SS — 2Max Planck Institute of Chemical Physics of Solids, Noethnitzer Strasse, Dresden -01187
The metallic delafossite PdCoO2, which is among the most conductive oxides currently known (at 295 K) , has risen to prominence due to interesting physical effects, such as unusually long mean free paths, leading to hydrodynamic effects being observed in electron flow . Further, recent Angle Resolved Photoemission Spectroscopy (ARPES) studies have reported exciting surface-physics on the CoO2-terminated surface. The CoO2 surface shows evidence of large Rashba spin-splitting, arising from the interplay of energy scales due to strong spin orbit coupling and inversion symmetry breaking at the surface. . In this study, we have identified and investigated the CoO2 termination of PdCoO2 with low temperature Scanning Tunneling Microscopy (STM). We present and discuss the quasi-particle interference imaging of the Rashba spin-split surface state, and the implications for possible spintronics applications.
 C.W. Hicks et al., Phys. Rev. Lett. 109, 116401 (2012)
 P.J.W. Moll et al., Science 351, 1061 (2016)
 V. Sunko et al., Nature 549, 492 (2017)