TY - JOUR
T1 - Line nodes in the energy gap of superconducting BaFe2 ( As 1-xPx )2 single crystals as seen via penetration depth and thermal conductivity
AU - Hashimoto, K.
AU - Yamashita, M.
AU - Kasahara, S.
AU - Senshu, Y.
AU - Nakata, N.
AU - Tonegawa, S.
AU - Ikada, K.
AU - Serafin, A.
AU - Carrington, A.
AU - Terashima, T.
AU - Ikeda, H.
AU - Shibauchi, T.
AU - Matsuda, Y.
PY - 2010/6/1
Y1 - 2010/6/1
N2 - We report magnetic penetration depth and thermal-conductivity data for high-quality single crystals of BaFe2 ( As1-xPx )2 (Tc =30 K) which provide strong evidence that this material has line nodes in its energy gap. This is distinctly different from the nodeless gap found for (Ba,K) Fe2 As2 which has similar Tc and phase diagram. Our results indicate that repulsive electronic interactions play an essential role for Fe-based high- Tc superconductivity but that uniquely there are distinctly different pairing states, with and without nodes, which have comparable Tc.
AB - We report magnetic penetration depth and thermal-conductivity data for high-quality single crystals of BaFe2 ( As1-xPx )2 (Tc =30 K) which provide strong evidence that this material has line nodes in its energy gap. This is distinctly different from the nodeless gap found for (Ba,K) Fe2 As2 which has similar Tc and phase diagram. Our results indicate that repulsive electronic interactions play an essential role for Fe-based high- Tc superconductivity but that uniquely there are distinctly different pairing states, with and without nodes, which have comparable Tc.
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U2 - 10.1103/PhysRevB.81.220501
DO - 10.1103/PhysRevB.81.220501
M3 - Article
AN - SCOPUS:77956302012
SN - 0163-1829
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 22
M1 - 220501
ER -