Effects of R-site compositions on the meta-magnetic behavior of Tb1- Pr (Fe0.4Co0.6)1.88C0.05 (=0, 0.8, and 1)

• 作者: 夏正才 尚翠 成钢 时丽然 金昭 魏蒙 黄俊伟
• 来源期刊: 中国物理B（英文版）
• 关键词: magnetization jumps martensite-like transition intermetallics
• 年，卷（期）: 2015,（10）
• 页码范围: 107504-1-107504-6
• 页数: 1页
• 语种: 英文
• DOI: 10.1088/1674-1056/24/10/107504

摘要

We investigate the low-temperature magnetic properties of intermetallic compounds Tb1?xPrx(Fe0.4Co0.6)1.88C0.05 (x=0, 0.8, and 1) by detailed magnetization measurements. Obvious temperature-and field-induced irreversibilities sug-gest the coexistence of multiple magnetic phases. Sharp magnetization jumps across the antiferromagnetic to ferromagnetic transition are observed only in the Pr-containing samples, indicating that the behavior of the avalanche-like growth of fer-romagnetic clusters is mainly related to the light lanthanide Pr ions. In addition, the time relaxation, field sweep rate, and cooling field dependence of magnetization jumps in the sample with x=1 are consistent with those in the martensitic scenario.