Spin-phonon coupling in K0.8Fe1.6Se2 and KFe2Se2: Inelastic neutron scattering and ab initio phonon calculations
نویسندگان
چکیده
R. Mittal,1 M. K. Gupta,1 S. L. Chaplot,1 M. Zbiri,2 S. Rols,2 H. Schober,2,3 Y. Su,4 Th. Brueckel,4,5 and T. Wolf6 1Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India 2Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France 3Université Joseph Fourier, UFR de Physique, 38041, Grenoble Cedex 9, France 4Juelich Centre for Neutron Science JCNS-FRM II, Forschungszentrum Juelich GmbH, Outstation at FRM II, Lichtenbergstr. 1, D-85747 Garching, Germany 5Juelich Centre for Neutron Science JCNS and Peter Gruenberg Institut PGI, JARA-FIT, Forschungszentrum Juelich GmbH, 52425 Juelich, Germany 6Institut fuer Festkoerperphysik, Karlsruhe Institute of Technology, D-76021 Karlsruhe, Germany (Received 23 January 2013; revised manuscript received 15 April 2013; published 3 May 2013)
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