Superconductivity in Oxychalcogenide LaREO2Bi3Ag0.6Sn0.4S6 (RE = Pr and Nd)

• DOI: 10.1007/s10948-019-05218-1
• Publication Date: 2019-08-21T06:02:46Z
• Authors: G. C. Kim; M. Cheon; Woojae Choi; D. Ahmad; Yong Seung Kwon; Rockkil Ko; Y. C. Kim
• Keywords: La2O2Bi3AgS6; Superconductivity; Oxychalcogenides; Impurity phase; BiS2-based superconductor; Superconducting materials; 530; 01 natural sciences; 0103 physical sciences; Onset temperature; Oxychalcogenide; Materials properties

We have investigated the structural, electrical, and magnetic properties of oxychalcogenide LaREO2Bi3Ag0.6Sn0.4S6 (RE = Pr and Nd) superconductors. The LaREO2Bi3Ag0.6Sn0.4S6 (RE = Pr and Nd) samples are composed of a single La2O2Bi3AgS6 phase without any impurity phase. The superconducting onset temperature of LaREO2Bi3Ag0.6Sn0.4S6 (RE = Pr and Nd) is $\sim $ 4.1 K, which is slightly higher than 2.8 K observed for La2O2Bi3Ag0.6Sn0.4S6.