TY - JOUR
T1 - Probing the nodal structure in quasi-2D unconventional superconductors by thermal conductivity
AU - Izawa, K.
AU - Yamaguchi, H.
AU - Matsuda, Y.
AU - Sasaki, T.
AU - Settai, R.
AU - Onuki, Y.
PY - 2002/6
Y1 - 2002/6
N2 - The superconducting gap structure is an unresolved issue in most of unconventional superconductors. Here we measured the thermal conductivity of 2D unconventional superconductors, spin-triplet Sr2RuO4, heavy fermion CeCoIn5 and organic κ-(BEDT-TTF)2Cu(NCS)2, in magnetic field rotating within the 2D planes. On the basis of the angular variation in the thermal conductivity, we demonstrate that the gap function is d(k) = Δ0ẑ(kx + iky)(cos ckz + α) for Sr2RuO4, dx(2)-y(2) for CeCoIn5, and dxy for κ-(BEDT-TTF)2Cu(NCS)2.
AB - The superconducting gap structure is an unresolved issue in most of unconventional superconductors. Here we measured the thermal conductivity of 2D unconventional superconductors, spin-triplet Sr2RuO4, heavy fermion CeCoIn5 and organic κ-(BEDT-TTF)2Cu(NCS)2, in magnetic field rotating within the 2D planes. On the basis of the angular variation in the thermal conductivity, we demonstrate that the gap function is d(k) = Δ0ẑ(kx + iky)(cos ckz + α) for Sr2RuO4, dx(2)-y(2) for CeCoIn5, and dxy for κ-(BEDT-TTF)2Cu(NCS)2.
KW - A. Superconductors
KW - D. Superconductivity
KW - D. Thermal conductivity
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U2 - 10.1016/S0022-3697(02)00134-8
DO - 10.1016/S0022-3697(02)00134-8
M3 - Conference article
AN - SCOPUS:0036602738
SN - 0022-3697
VL - 63
SP - 1055
EP - 1059
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 6-8
T2 - Proceedings of the 8th ISSP International Symposium
Y2 - 2 November 2001 through 5 November 2001
ER -