2015/02/28 by Yukinobu Fujimoto, Kazumasa Miyake, Hiroyasu Matsuura · 1 citation
Physics and Astronomy · #cond-mat.str-el
paper · pdf · doi:10.7566/jpsj.84.043702
published as J. Phys. Soc. Jpn. Vol.84, 043702 (2015) · Published as an article in the Letter section of J. Phys. Soc. Jpn.; 11 pages, 2 figures; Supplemental Materials (20 pages) is referred as Ref. 23 in the main text
arxiv created 2015/03/09 · arxiv updated 2015/03/10
It is shown that an asymmetric spin-orbit interaction is appreciably renormalized by the effect of critical spin fluctuations. As an explicit example, the Rashba-type interaction is predicted to be suppressed by anti-ferromagnetic critical fluctuations near the hot line (or point), leading to a deformation of the Fermi surface near the hot line (or point) around which the band splitting is decreased, while ferromagnetic critical fluctuations are shown to enhance the Rashba-type interaction everywhere on the Fermi surface, leading to an increase in the band splitting. It is also found that the many-body mass renormalization, which diverges towards the magnetic quantum critical point, is in the opposite sign for the two split bands by the Rashba-type interaction. These predictions are observable by the de Haas-van Alphen (dHvA) effect in principle.