Magnetocaloric and magnetoresistance studies of GdPd2Si
Magnetocaloric and magnetoresistance studies of GdPd2Si
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DOI：
10.1088/0953-8984/13/3/102
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发表时间：
2001-01
期刊：
影响因子：
--
通讯作者：
R. Rawat;I. Das
中科院分区：
文献类型：
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作者：
R. Rawat;I. Das
据报道，化合物 GdPd2Si 在 13 K 下具有反铁磁性，已通过在外部磁场存在下的热容量和电阻率测量来研究该化合物。与早期的报告相反，零场热容和电阻率数据表明在 13 K 和 17 K 处出现两个磁转变。外部磁场显着影响磁有序温度附近化合物的电阻率和热容。根据现场热容量数据计算出的磁热效应在磁转变温度附近相当大。在磁有序温度附近磁阻也很大。在磁热和磁阻数据中均观察到 10 kOe 磁场的变磁转变。变磁转变强烈影响磁热效应和磁阻，在该化合物中磁阻很大。
The compound GdPd2Si, which is reported to order antiferromagnetically at 13 K, has been investigated by heat capacity and electrical resistivity measurement in the presence of external magnetic fields. In contrast to an earlier report, the zero-field heat capacity and resistivity data indicate two magnetic transitions at 13 and 17 K. The external magnetic field substantially influences the resistivity and heat capacity of the compound around the magnetic ordering temperature. The magnetocaloric effect, which is calculated from in-field heat capacity data, is quite large around the magnetic transition temperature. The magnetoresistance is also large near the magnetic ordering temperature. The metamagnetic transition is observed for 10 kOe magnetic field both in magnetocaloric and in magnetoresistance data. The metamagnetic transition strongly influences the magnetocaloric effect and magnetoresistance, which is large in this compound.