De Haas-van Alphen effect and magnetic properties of antiferromagnetic SmGa2 and PrGa2

✍ Scribed by I. Sakamoto; Y. Isokane; H. Sato; K. Maezawa; G. Kido; I. Oguro; S. Maruno

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 142 KB
• Volume: 194-196
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)90917-2

✦ Synopsis

We have measured the de Haas-van Alphen effect up to 15T on SmGa 2 and PrGa 2. It was found that angular dependances of low frequency branches for both compounds are very similar to that of LaGa 2 while high frequency branches in SmGa 2 are completely different from that of LaGa 2. Magnetization has also measured up to 28T at 1.8K on SmGa 2 and PrGa 2. The metamagnetic phase transitions were observed for field I-l//the c-axis for SmGa2 and lt//the a-axis for PrGa 2. The magnetic moment at 27T is about 85% of the gJ values for Sm 3+ ion whereas that of PrGa 2 reaches nearly the value of pr3+ion at about 3T.