TY - JOUR
T1 - Effect of Lead substitution on LaO0.5F0.5BiS2
AU - Otsuki, Satoshi
AU - Demura, Satoshi
AU - Sakai, Yuuto
AU - Fujisawa, Yuita
AU - Sakata, Hideaki
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2018/2
Y1 - 2018/2
N2 - We examined Lead (Pb) Substitution effect on a single crystal of a layered superconductor LaO0.5F0.5BiS2. Pb concentration dependence of the lattice constant showed slight anomaly at about 8% and 9% substitution of Pb for Bi. These samples showed the enhancement of the superconducting transition temperature and the superconducting volume fraction. Furthermore, these samples showed the anomaly in the temperature dependence of the resistivity at about 150 K. These results were not observed in Pb substituted NdO0.7F0.3BiS2. Therefore, the enhancement of the superconducting properties by Pb substitution is related to the structural instability for the pale perturbation in LaO0.5F0.5BiS2.
AB - We examined Lead (Pb) Substitution effect on a single crystal of a layered superconductor LaO0.5F0.5BiS2. Pb concentration dependence of the lattice constant showed slight anomaly at about 8% and 9% substitution of Pb for Bi. These samples showed the enhancement of the superconducting transition temperature and the superconducting volume fraction. Furthermore, these samples showed the anomaly in the temperature dependence of the resistivity at about 150 K. These results were not observed in Pb substituted NdO0.7F0.3BiS2. Therefore, the enhancement of the superconducting properties by Pb substitution is related to the structural instability for the pale perturbation in LaO0.5F0.5BiS2.
KW - A: BiS-based superconductor
KW - B: Flux growth
KW - C: Layered structure
KW - D: Superconducting properties
KW - E: Electrical resistivity measurement
KW - E: Magnetic susceptibility measurement
UR - http://www.scopus.com/inward/record.url?scp=85034106662&partnerID=8YFLogxK
U2 - 10.1016/j.ssc.2017.11.002
DO - 10.1016/j.ssc.2017.11.002
M3 - Article
AN - SCOPUS:85034106662
SN - 0038-1098
VL - 270
SP - 17
EP - 21
JO - Solid State Communications
JF - Solid State Communications
ER -