Magnetic and transport properties of CePd2Al2 single crystal
Magnetic and transport properties of CePd2Al2 single crystal
复制标题
CePd2Al2单晶的磁性和输运性质
DOI：
10.1016/j.jallcom.2015.03.095
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
P. Javorský
中科院分区：
文献类型：
--
作者：
M. Klicpera;P. Doležal;J. Prokleška;J. Prchal;P. Javorský
采用磁化强度、比热容和电阻率等测量方法对CePd2Al2单晶进行了研究，并测量了其在静水压下的电阻率。通过各种测量证实了Néel温度为2.7 K的反铁磁相变以及在13 K附近从四方晶系到正交晶系的一级结构相变。发现了具有易磁化基面的长程磁序，并结合已有的中子非弹性散射实验和晶场方案对磁化强度和比热进行了深入的分析和讨论。在静水压力下的电阻率揭示了一个移动的结构转变到更高的温度，而磁性转变温度保持不变。结构转变时的电阻率行为表明在0.6GPa以上的压力下低温晶体结构的变化。
CePd 2 Al 2 single crystal was investigated by means of magnetization, specific heat and electrical resistivity measurements including the resistivity measurement under hydrostatic pressure. The antiferromagnetic phase transition with Néel temperature of 2.7 K was confirmed by all types of measurements as well as the first order structural phase transition from tetragonal to orthorhombic structure around 13 K. The long-range magnetic order with magnetization easy basal-plane was found. The thorough analysis of magnetization and specific heat was done to discuss the results in context of previous inelastic neutron scattering experiment and the crystal-field scheme. The electrical resistivity under hydrostatic pressure revealed a shift of the structural transition to the higher temperatures, while the magnetic transition temperature remains constant. The resistivity behavior at the structural transition indicates a change of the low-temperature crystal structure in pressures above 0.6 GPa.
影响因子：
1.6
作者：
Fujiwara, Naoki;Matsumoto, Takehiko;Uwatoko, Yoshiya
通讯作者：
Uwatoko, Yoshiya