Annotation
In this paper we study the problem of admitting an exact solution of the effect of spin fluctuations on phase transition when modeling a multiferroic superconducting system in a strong magnetic field. New results are obtained for phase portraits of the system of equations for amplitudes of spin density and temperature waves. The possibility is justified for the transition of the system to a phase in which superconductivity and antiferromagnetic ordering coexist, particularly via slowly fluctuating spin-density waves.
Received: 2013 November 20
Approved: 2014 September 11
PACS:
71.10.-w Theories and models of many-electron systems
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
M.A. Dergachev, A.M. Savchenko, B.I. Sadovnikov
Department of Physics, Moscow State University, Moscow, 119991, Russia
Department of Physics, Moscow State University, Moscow, 119991, Russia