Symmetry of the superconducting order parameter in frustrated systems determined by the spatial anisotropy of spin correlations

Details Symmetry of the superconducting order parameter in frustrated systems determined by the spatial anisotropy of spin correlations Symmetry of the superconducting order parameter in frustrated systems determined by the spatial anisotropy of spin correlations

2006-07-04

arxiv.org/abs/cond-mat/0607079v2

Phys. Rev. Lett. 98, 027005 (2007)

Physics

Condensed Matter

Superconductivity

To appear in Phys. Rev. Lett. - 5 pages, 4 figs

Scientific paper

10.1103/PhysRevLett.98.027005

We study the resonating valence bond (RVB) theory of the Hubbard-Heisenberg model on the half-filled anisotropic triangular lattice. Varying the frustration changes the wavevector of maximum spin correlation in the Mott insulating phase. This, in turn, changes the symmetry of the superconducting state, that occurs at the boundary of the Mott insulating phase. We propose that this physics is realised in several families of quasi-two-dimensional organic superconductors.

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