Elastic properties of paramagnetic austenitic steel at finite temperature: Longitudinal spin fluctuations in multicomponent alloys

Zhihua Dong,1,* Stephan Schönecker,1,† Dengfu Chen,2 Wei Li,1 Mujun Long,2 and Levente Vitos1,3,4 1Applied Materials Physics, Department of Materials Science and Engineering, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden 2College of Materials Science and Engineering, Chongqing University, Chongqing 400030, People’s Republic of China 3Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Box 516, SE-75120 Uppsala, Sweden 4Research Institute for Solid State Physics and Optics, Wigner Research Center for Physics, P.O. Box 49, H-1525 Budapest, Hungary (Received 23 June 2017; revised manuscript received 30 October 2017; published 13 November 2017)