Magnetic properties of (La1−xPrx)6Fe11Al3 compounds

Autor: Qiwei Yan, Panlin Zhang, Ligan Zhang, Bao-gen Shen, Jing-yun Wang, Fang-wei Wang
Rok vydání: 1999
Předmět:
Zdroj: Physica B: Condensed Matter. 269:17-21
ISSN: 0921-4526
DOI: 10.1016/s0921-4526(99)00093-9
Popis: The synthesis, structure and magnetic properties of (La1-xPrx)(6)Fe11Al3 (x = 0.0-1.0) compounds are investigated in this work. Upon substitution of Pr for La, the unit-cell volume decreases linearly with the Pr content, but the long-range magnetic-ordering temperature rises. A first-order magnetic process is observed at 5 K, which becomes more evident with increasing Pr concentration while the Pr concentration has little effect on the value of the critical field of the transition. With increasing temperature, the magnetic state of the compounds changes from antiferromagnetic to spin cluster, and finally to the paramagnetic state. (C) 1999 Elsevier Science B.V. All rights reserved.
Databáze: OpenAIRE