论文标题
$δ$ - 相量UZR $ _2 $的磁性,运输和热属性
Magnetic, transport, and thermal properties of $δ$-phase UZr$_2$
论文作者
论文摘要
六边形$δ$Δ$差素$ _2 $的合金已通过热容量,磁化率,磁化率,磁化,电阻率,磁电阻率,磁电阻,热电导率,热电导率测量,首次在1.8到300 k和300 k和300 k的温度下的磁力范围,这是第一次的磁性值。 SeeBeck(在室温下为0.75 $ $ V/k)和Sommerfeld系数(13.5 MJ Mol $^{ - 1} $ K $^{ - 2} $)指向该材料中具有定位性质的材料中的5 $ f $ -electrons。电阻率和磁化率表明存在$δ$ -UZR $ _2 $中的明显电子疾病,与晶体结构的疾病一致。密度功能理论计算已进行并与实验结果进行了比较。
Alloys of hexagonal $δ$-phase UZr$_2$ have been synthesized and studied by means of heat capacity, magnetic susceptibility, magnetization, electrical resistivity, magnetoresistance, thermoelectric power, thermal conductivity measurements, for the first time, at temperatures from 1.8 to 300 K and in magnetic fields up to 8 T. The weak temperature dependence of the magnetic susceptibility and the small value of both Seebeck (0.75 $μ$V/K at room temperature) and of the Sommerfeld coefficient (13.5 mJ mol$^{-1}$ K$^{-2}$) point to 5$f$-electrons in this material having a delocalized nature. The electrical resistivity and magnetoresistance indicate the presence of significant electronic disorder in $δ$-UZr$_2$, consistent with the disorder in its crystal structure. Density functional theory calculations have been performed and compared to experimental results.