A crystal field investigation of the properties of RCuAs2 (R=Pr, Nd, Sm, Tb, Dy, Ho, Er and Yb)

✍ Scribed by A. Chatterji; Reba Chatterjee

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 607 KB
• Volume: 403
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2008.03.007

✦ Synopsis

A crystal field (CF) investigation of the magnetic properties and heat capacities of RCuAs 2 (R ¼ Pr, Nd, Sm, Tb, Dy, Ho, Er and Yb) has been carried out using the observed average magnetic susceptibilities (1.8-300 K) of the title compounds. The CF parameters proposed for the systems show a systematic variation throughout the rare-earth series. Other physical properties dependent on the CF are also computed and compared with available experimental data. The experimental heat capacity data reported for a limited range of temperature agree well with computed heat capacity for all the compounds (except SmCuAs 2 and YbCuAs 2 ). CF J mixing was found to be appreciable for all the samples except YbCuAs 2 .