arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1005.3671cond-mat.str-el
收藏

磁热化合物R6Co1.67 Si 3(R=Tb和Nd)的亚稳磁化行为

Metastable magnetization behavior in magnetocaloric R6Co1.67Si3 (R=Tb and Nd) compounds

Arabinda Haldar, Niraj K. Singh, K. G. Suresh, A. K. Nigam

摘要:

在最近发现的三元硅化物R6 Co 1.67Si 3中观察到了磁场和时间诱导的台阶。在低温磁化等温线的不同环中观察到巨大的弛豫台阶。该系统中存在的巨弛豫现象表明,在一定的磁场下,存在一个达到饱和时刻的孕育时间。在该系统中观察到的测量协议敏感的磁化行为可能是由强磁结构耦合和/或磁阻挫引起的。电阻率和磁阻也反映了化合物的磁性状态。磁热效应被发现是大的温度接近磁转变温度。

英文摘要:

Magnetic field and time induced steps have been observed in the recently discovered ternary silicide R6Co1.67Si3. Huge relaxation steps are observed across different loops in the low temperature magnetization isotherms. Giant relaxation present in this system indicates the existence of incubation time to get the saturated moment at a certain field. Measurement protocol sensitive magnetization behavior observed in this system may arise from the strong magnetostructural coupling and/or magnetic frustration. Electrical resistivity and magnetoresistance also reflect the magnetic state of the compound. Magnetocaloric effect is found to be large at temperatures close to the magnetic transition temperature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑