论文标题
物理和化学压力对LAAG1-XAUXSB2单晶电荷密度波转变的影响
Effects of physical and chemical pressure on charge density wave transitions in LaAg1-xAuxSb2 single crystals
论文作者
论文摘要
提出了LA（AG1-XAUX）SB2家族的环境和施加压力的结构表征和电运输测量。从室温冷却后，可以检测到多达两个电荷密度波（CDW）过渡，并且观察到化学和物理压力对CDW排序温度的影响等效，单位细胞体积是一个明显的结构参数。因此，这样的LA（AG1-XAUX）SB2是一个非潜水系统的罕见例子，在施加的，物理，压力和晶胞体积变化的影响之间表现出良好的一致性，这是由Isovalent替代引起的空间变化的。此外，对于LA（AG0.54AU0.46），在低温电运输中的SB2异常在压力范围内观察到较低的电荷密度波完全抑制。
The structural characterization and electrical transport measurements at ambient and applied pressures of the compounds of the La(Ag1-xAux)Sb2 family are presented. Up to two charge density wave (CDW) transitions could be detected upon cooling from room temperature and an equivalence of the effects of chemical and physical pressure on the CDW ordering temperatures was observed with the unit cell volume being a salient structural parameter. As such La(Ag1-xAux)Sb2 is a rare example of a non-cubic system that exhibits good agreement between the effects of applied, physical, pressure and changes in unit cell volume from steric changes induced by isovalent substitution. Additionally, for La(Ag0.54Au0.46)Sb2 anomalies in low temperature electrical transport were observed in the pressure range where the lower charge density wave is completely suppressed.
