On the stability of the quasi-onedimensional metallic phase in magnetic fields against the spin density wave formation

L.P. Gor'Kov , A.G. Lebed'

For a simple anisotropic metal model with two open nested Fermi surfaces, it is shown that the tendency to spin density wave formation increases when a magnetic field is applied, which could lead to a series of phase transitions as functions of the field value. The results are suggested as an explanation of the phase diagram of the (TMTSF)2X compounds.

Keywords: Fermi surface; magnetic field effects; metal insulator transition; one dimensional conductivity; phase diagrams; spin density waves; quasione dimensional metallic phase stability; magnetic fields; spin density wave formation; anisotropic metal model; open nested Fermi surfaces; phase transitions; phase diagram; TMTSF sub 2 X compounds

Domains: Physics archives

L.P. Gor'Kov, A.G. Lebed'. On the stability of the quasi-onedimensional metallic phase in magnetic fields against the spin density wave formation. Journal de Physique Lettres, 1984, 45 (9), pp.433-440. ⟨10.1051/jphyslet:01984004509043300⟩. ⟨jpa-00232366⟩