Ultrafast Spin Dynamics and Phase Competition in a Spin Vortex Crystal Superconductor

Di Cheng,Joong Mok Park,Liang Luo,R. H. J. Kim,I William R. Meier,Sergey L. Bud’ko,Paul C. Canfield,M. Mootz,Llias E. Perakis,Jigang Wang

Ultrafast Spin Dynamics and Phase Competition in a Spin Vortex Crystal Superconductor

2019

Di Cheng
Joong Mok Park
Liang Luo
R. H. J. Kim
I William R. Meier
Sergey L. Bud’ko
Paul C. Canfield
M. Mootz
Llias E. Perakis
Jigang Wang

Ultrafast spectroscopy measurements on iron pnictide 1144 superconductor CaK(Fel-xNix)4As4 revealed, for the first time, spin dynamics of an exotic Spin Vortex Crystal (SVC) phase that competes with superconductivity. © 2019 The Author(s)

Keywords:

Physics
Optoelectronics
Condensed matter physics
Vortex
Ultrashort pulse
Superconductivity
Spin-½
Spectroscopy
spin dynamics
Pnictogen

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