Energy gap suppression by alloying in CeNi1−xPtxSn

✍ Scribed by S. Nishigori; H. Goshima; T. Suzuki; T. Fujita; G. Nakamoto; T. Takabatake; H. Fujii; J. Sakurai

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 206 KB
• Volume: 186-188
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(93)90587-v

✦ Synopsis

The specific heat C of CeNi~ ~PtxSn has been measured at temperatures T between 1.3 and 60 K. With increasing Pt concentration x from 0 to 0.2, the ratio C/T at 1.5 K recovers from a reduced value of 0.10J/K 2 mol due to the gapping (x = 0) to an enhanced value of 0.34 J/K 2 mol (x = 0.2). This gap suppression is discussed in terms of reduction of the c-f hybridization and destruction of coherence.