Pérez Nicolás, Sahoo Manaswini, Schierning Gabi, Nielsch Kornelius, Nolas George S
Institute for Metallic Materials, IFW-Dresden, 01069 Dresden, Germany.
Institute for Solid State, IFW-Dresden, 01069 Dresden, Germany.
Materials (Basel). 2022 May 10;15(10):3439. doi: 10.3390/ma15103439.
The temperature- and field-dependent, electrical and thermal properties of inorganic clathrate-VIII EuGaGe were investigated. The type VIII clathrates were obtained from the melt of elements as reported previously. Specifically, the electrical resistivity data show hysteretic magnetoresistance at low temperatures, and the Seebeck coefficient and Hall data indicate magnetic interactions that affect the electronic structure in this material. Heat capacity and thermal conductivity data corroborate these findings and reveal the complex behavior due to Eu magnetic ordering and clustering from approximately 13 to 4 K. Moreover, the low-frequency dynamic response indicates EuGaGe to be a glassy magnetic system. In addition to advancing our fundamental understanding of the physical properties of this material, our results can be used to further the research for potential applications of interest in the fields of magnetocalorics or thermoelectrics.
研究了无机笼型化合物VIII EuGaGe的温度和场依赖的电学及热学性质。如先前报道，VIII型笼型化合物由元素熔体获得。具体而言，电阻率数据显示在低温下存在滞后磁电阻，塞贝克系数和霍尔数据表明磁相互作用影响了该材料的电子结构。热容和热导率数据证实了这些发现，并揭示了由于Eu磁有序和从约13 K到4 K的团簇化所导致的复杂行为。此外，低频动态响应表明EuGaGe是一种玻璃态磁体系统。除了深化我们对该材料物理性质的基本理解外，我们的结果还可用于推动磁热效应或热电领域潜在应用的研究。
