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Electronic and magnetic properties of GdPdSb

机译:GdPdSb的电子和磁性

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摘要

Magnetic and resistivity measurements were used to examine the ternary rare earth compound GdPdSb. A second magnetic transition below the antiferromagnetic ordering temperature T-N was found, indicating a possible ferromagnetic ordering. The electronic structure of GdPdSb was also examined using first principles electronic structure calculations. It was found that the antiferromagnetic configuration is more stable than the ferromagnetic configuration, but that the energy difference is very small between these configurations. For this reason, ferromagnetic behaviour could be expected at low temperature. According to band structure calculations, ferromagnetically ordered GdPdSb is a possible half metal, the first half metallic ferromagnet with the hexagonal LiGaGe structure type.
机译:磁性和电阻率测量用于检查三元稀土化合物GdPdSb。发现在反铁磁有序温度T-N以下的第二磁跃迁,表明可能的铁磁有序。还使用第一原理电子结构计算检查了GdPdSb的电子结构。发现反铁磁结构比铁磁结构更稳定,但是在这些结构之间的能量差很小。因此,在低温下可以预期铁磁行为。根据能带结构计算,铁磁有序的GdPdSb是可能的半金属,即具有六角形LiGaGe结构类型的前半金属铁磁体。

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