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Fermi liquid instabilities in the spin channel
2007
Physical Review B
We study the Fermi surface instabilities of the Pomeranchuk type in the spin triplet channel with high orbital partial waves (F_l^a (l>0)). The ordered phases are classified into two classes, dubbed the α and β-phases by analogy to the superfluid ^3He-A and B-phases. The Fermi surfaces in the α-phases exhibit spontaneous anisotropic distortions, while those in the β-phases remain circular or spherical with topologically non-trivial spin configurations in momentum space. In the α-phase, the
doi:10.1103/physrevb.75.115103
fatcat:vcod2xcc7vgzfkrk4yc6kmk6gy