Magnetic behaviour of RPdSb (R = rare earth) compounds
Magnetic behaviour of RPdSb (R = rare earth) compounds
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RPdSb（R = 稀土）化合物的磁性行为
DOI：
10.1016/0304-8853(91)90262-9
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发表时间：
1991
影响因子：
2.7
通讯作者：
D. Adroja
中科院分区：
文献类型：
--
作者：
S. Malik;D. Adroja
对等原子三元化合物进行了磁化率测量。RPdSb(R=La~Tm)，在4.2-300K的温度范围内，在500Oe到6Koe的各种应用领域中。化合物CePdSb具有铁磁性，其有序温度Tm约为17K，而NdPdSb、SmPdSb、EuPdSb和GdPdSb具有反铁磁性有序，Néel温度分别为11、18、13和17K。所有其他化合物在所研究的温度范围内都是顺磁性的。这些化合物的有序化温度不遵循de Gennes标度。化合物NdPdSb在4.2K的外加磁场≅_2Koe下表现出一变磁相变，其电阻率在150K附近出现极大值，在高温下表现为In(T)行为，表明存在结晶场和近藤效应。
Magnetic susceptibility measurements have been carried out on the equiatomic ternary compounds. RPdSb (R = La to Tm), in the temperature range of 4.2–300 K and in various applied fields between 500 Oe and 6 kOe. The compound CePdSb orders ferromagnetically with ordering temperatureTMof about 17 K while NdPdSb, SmPdSb, EuPdSb and GdPdSb order antiferromagnetically with Néel temperatureTNof 11, 18, 13 and 17 K, respectively. All other compounds are paramagnetic in the temperature range investigated. The ordering temperatures of these compounds do not follow De Gennes scaling. The compound NdPdSb shows a metamagnetic transition at an applied field of ≅ 2 kOe at 4.2 K. The electrical resistivity of CePdSb shows a broad maximum around 150 K and an In(T) behavior at high temperatures, suggesting the presence of crystalline fields and Kondo effect.