Magnetic Susceptibility for a Dilute Magnetic Alloy

✍ Scribed by B. Kjöllerström

• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 451 KB
• Volume: 43
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2220430122

✦ Synopsis

Abstract

For a dilute magnetic alloy the two‐body Coulomb interaction U is replaced by the interaction with two external fields, and the partition function is then transformed into a Gaussian average over these fields. In the case of static external fields the magnetic susceptibility is calculated. When A(0) U > 1 there are localized magnetic moments which have a Curie‐law susceptibility with the correct limiting value of the Curie constant for large U. When A(0) U < 1 there are no moments and the susceptibility is temperature independent approaching the correct Pauli‐enhanced susceptibility.