On the Imbalanced d-Wave Superfluids Within the Spin Polarized Extended Hubbard Model: Weak Coupling Limit
Agnieszka Cichy
We investigate the superuid properties of d-wave pairing symmetry within the Extended Hubbard Model (EHM) in a magnetic eld.We analyze the temperature and magnetic eld dependencies of the order parameter.We nd that in the two-dimensional case, the spatially homogeneous spin polarized superuidity (SC (P ̸ = 0)) is stable in the weak coupling limit, at T = 0, as opposed to the s-wave pairing symmetry case in 2D.We construct the ground state phase diagrams both for xed chemical potential and electron concentration.Furthermore, we obtain the temperature vs. magnetic eld and temperature vs. spin polarization phase diagrams.
arXiv:1309.6673•Acta Physica Polonica A•Apr 1, 2012•1 citation