Electrical resistivity and superconductivity in the chevrel phase compounds of the type Cu1.8Mo6S8—ySey (0 ⩽ y ⩽ 8) and Cu1.8Mo6S8—y Tey, (0 ⩽ y ⩽ 4)

✍ Scribed by V. Sankaranarayanan; G. Rangarajan; R. Srinivasan; A.M. Umarji; G.V. Subba Rao

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 487 KB
• Volume: 22
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(82)90061-3

✦ Synopsis

The superconducting transition temperatures and normal state residual electrical resistivities of the ternary Chevrel phase compounds CUl.8MosSs_ySey (0 <~ y ~ 8) and Cul~MO6Se.y Tey (0 ~ y ~ 4) are reported. The data are examined for possible correlations with structural parameters of the rhombohedral unit call and the residual resistivity values. It is found that T c decreases as the c/a ratio increases and as the rhombohedral angle approaches 90 °. There is also an inverse correlation between T c and the normal residual resistivity of the samples.