B J Powell 2006 J. Phys.: Condens. Matter 18 L575 doi:10.1088/0953-8984/18/46/L01
B J Powell
Show affiliationsWe present a group theoretical analysis of several classes of organic superconductor. We predict that highly frustrated organic superconductors, such as κ-(ET)2Cu2(CN)3 (where ET is BEDT-TTF, bis(ethylene-dithio)tetrathiafulvalene) and β'-[Pd(dmit)2]2X, undergo two superconducting phase transitions, the first from the normal state to a d-wave superconductor and the second to a d+id state. We show that the monoclinic distortion of κ-(ET)2Cu(NCS)2 means that the symmetry of its superconducting order parameter is different from that of orthorhombic κ-(ET)2Cu[N(CN)2]Br. We propose that β'' and θ phase organic superconductors have dxy+s order parameters.
74.20.Rp Pairing symmetries (other than s-wave)
Issue 46 (22 November 2006)
Received 10 August 2006, in final form 14 September 2006
Published 3 November 2006
B J Powell 2006 J. Phys.: Condens. Matter 18 L575
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