TY - JOUR
T1 - 75 As NQR and NMR studies on the superconducting state of Ca10Pt4As8 (Fe1-xPt xAs)10
AU - Kobayashi, Yoshiaki
AU - Iida, Takefumi
AU - Suzuki, Kazunori
AU - Kawamata, Takayuki
AU - Itoh, Masayuki
AU - Sato, Masatoshi
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/1/15
Y1 - 2014/1/15
N2 - 75 As NQR and NMR measurements of Ca10Pt 4As8 (Fe1-xPtxAs)10 with the superconducting transition temperature Tc = 33.4K have been carried out. The observed 75As NQR spectra can be divided into those from As sites in (Fe1-xPtx)As and PtAs2 layers. From the NQR spectra of 75As in the (Fe1-xPt xAs) layers, x is found to be ∼20%, indicating that the superconductivity is robust against nonmagnetic impurities. This contradicts the existence of the sign reversal of the order parameter in the system. The 75As nuclear spin-lattice relaxation rates 1/T1's from the (Fe 1-xPtx)As and PtAs2 layers indicate that the PtAs2 layers are in a nonmetallic state and do not contribute to the occurrence of the superconductivity.
AB - 75 As NQR and NMR measurements of Ca10Pt 4As8 (Fe1-xPtxAs)10 with the superconducting transition temperature Tc = 33.4K have been carried out. The observed 75As NQR spectra can be divided into those from As sites in (Fe1-xPtx)As and PtAs2 layers. From the NQR spectra of 75As in the (Fe1-xPt xAs) layers, x is found to be ∼20%, indicating that the superconductivity is robust against nonmagnetic impurities. This contradicts the existence of the sign reversal of the order parameter in the system. The 75As nuclear spin-lattice relaxation rates 1/T1's from the (Fe 1-xPtx)As and PtAs2 layers indicate that the PtAs2 layers are in a nonmetallic state and do not contribute to the occurrence of the superconductivity.
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U2 - 10.7566/JPSJ.83.014712
DO - 10.7566/JPSJ.83.014712
M3 - Article
AN - SCOPUS:84897756166
VL - 83
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 1
M1 - 014712
ER -