Spontaneous Fermi surface symmetry break
β
H. Yamase; V. Oganesyan; W. Metzner
π
Article
π
2006
π
Elsevier Science
π
English
β 297 KB
We analyze a forward scattering model on a square lattice, which exhibits spontaneous Fermi surface symmetry breaking with a d-wave order parameter: the Fermi surface expands along the k x -axis and shrinks along the k y -axis or vice versa. While the transition is usually first order as a function