Abstract:
We elaborate an analytical theory of a cascade of magnetic field-induced charge-density-wave (FICDW) phases. It is shown that the following features distinguish it from the well-known spin-density-wave cascade: 1) the FICDW phases exist at temperatures much lower than the characteristic CDW transition temperature at H=0; 2) the cascade of the FICDW phases dramatically changes at certain directions of a magnetic field due to an interplay of Zeeman spin-splitting and an electron motion along open Fermi surfaces. Theoretical results are compared with the recent experimental attempts to reveal the FICDW phases in organic conductors α-(ET)2MHg(SCN)4 (M = K, Tl, Rb, etc.).
Citation:
A. G. Lebed', “Theory of magnetic field-Induced charge-density-wave phases”, Pis'ma v Zh. Èksper. Teoret. Fiz., 78:3 (2003), 170–174; JETP Letters, 78:3 (2003), 138–142