Spin-Orbit Coupling in Fe-Based Superconductors

Korshunov, M. M.; Togushova, Y. N.; Eremin, I.; Hirschfeld, P. J.

doi:10.1007/s10948-013-2212-6

Spin-Orbit Coupling in Fe-Based Superconductors

Journal Article · Fri Apr 26 00:00:00 EDT 2013 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/s10948-013-2212-6· OSTI ID:2484144

Korshunov, M. M. ^[1]; Togushova, Y. N. ^[2]; Eremin, I. ^[3]; Hirschfeld, P. J. ^[4]

L.V. Kirensky Institute of Physics, Krasnoyarsk (Russia); Siberian Federal University, Krasnoyarsk (Russia)
Siberian Federal University, Krasnoyarsk (Russia)
Ruhr-Universität Bochum (Germany); Kazan Federal University (Russia)
University of Florida, Gainesville, FL (United States)

We study the spin resonance peak in recently discovered iron-based superconductors. The resonance peak observed in inelastic neutron scattering experiments agrees well with predicted results for the extended s-wave (s _±) gap symmetry. Recent neutron scattering measurements show that there is a disparity between transverse and longitudinal components of the dynamical spin susceptibility. Such breaking of the spin-rotational invariance in the spin-liquid phase can occur due to spin-orbit coupling. Here, we study the role of the spin-orbit interaction in the multiorbital model for Fe-pnictides and show how it affects the spin resonance feature.

Research Organization:: University of Florida, Gainesville, FL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: FG02-05ER46236

OSTI ID:: 2484144

Journal Information:: Journal of Superconductivity and Novel Magnetism, Journal Name: Journal of Superconductivity and Novel Magnetism Journal Issue: 9 Vol. 26; ISSN 1557-1939

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
Fe-based superconductors
Spin-orbit coupling
Spin-resonance peak

Spin-Orbit Coupling in Fe-Based Superconductors

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