103 citations · 129 across the 4 of their papers we have counts for
6 papers · 1 filter
Mixed order parameters, accidental nodes and broken time reversal symmetry in organic superconductors: a group theoretical analysis
B. J. Powell
We present a group theoretic analysis of several classes of organic superconductors. We argue that highly frustrated half-filled layered organic superconductors, such as kappa-(ET)…
Comparison of the phase diagram of the half-filled layered organic superconductors with the phase diagram of the RVB theory of the Hubbard-Heisenberg model
B. J. Powell, Ross H. McKenzie
We present an resonating valence bond (RVB) theory of superconductivity for the Hubbard--Heisenberg model on an anisotropic triangular lattice. We show that these calculations are…
First-principle density-functional calculation of the Raman spectra of BEDT-TTF
K. Brake, B. J. Powell, R. H. McKenzie +2
We present a first-principles density-functional calculation for the Raman spectra of a neutral BEDT-TTF molecule. Our results are in excellent agreement with experimental results.…
The origin of the difference in the superconducting critical temperatures of the beta_H and beta_L phases of (BEDT-TTF)_2I_3
B. J. Powell
Incommensurate lattice fluctuations are present in the beta_L phase (T_c = 1.5 K) of ET_2I_3 (where ET is BEDT-TTF - bis(ethylenedithio)tetrathiafulvalene) but are absent in the be…
The gap equations for spin singlet and triplet ferromagnetic superconductors
B. J. Powell, James F. Annett, B. L. Gyorffy
We derive gap equations for superconductivity in coexistence with ferromagnetism. We treat singlet states and triplet states with either equal spin pairing (ESP) or opposite spin p…
The Behavior of a Triplet Superconductor in a Spin Only Magnetic Field
B. J. Powell, James F. Annett, B. L. Gyorffy
We investigate the order parameter of SrRuO in an exchange-only magnetic field. A Ginzburg-Landau symmetry analysis implies three possibilities: a pure He A phase, a $^…