The low-temperature phase diagram of U1−xThxBe13

✍ Scribed by E. Felder; A. Bernasconi; H.R. Ott; Z. Fisk; J.L. Smith

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 164 KB
• Volume: 162-164
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(89)91089-7

✦ Synopsis

Measurements of spec f c heat cp~T) and thermal conductivity Z(T) Qive a detailed picture of the To(x) phase d agram of superconducting U1.xThxBe13 below 1 K. A distinct m n=mum for Tc is noted for x --0.018. Increasing x further results in increasing values for Tcl and the oct, rrence.of a sscondp..hase transition in. the superconduct ng state at Tc2 < Tcl. Two phase trans t ons are ooserveo oezween u.uz < x < u.u4~./c2 is roughly constant with varying x. For x > 0.05, only one sing e transition occurs and Tc dscreasas wth further increasing x. Anomalous behaviour is also observed for UBe13.yBy for y values between 0 and 0.05 in the sense that the co anoma es at the superconducting transition are distinctly larger than the corresponding discontinuity