Ce $_{0.8}$ La $_{0.2}$ B $_{6}$中IV相在压力下在II相中的稳定存在
Stable Existence of Phase IV inside Phase II under Pressure in Ce$_{0.8}$La$_{0.2}$B$_{6}$
摘要：
研究了Ce $_{0.8}$ La $_{0.2}$ B $_{6}$的电阻率和磁化强度的压力效应。通过施加高于$P\sim 1.1$ GPa的压力，可以实现在H=0 T时相IV稳定存在于相II内部的情况。这是因为在压力下相II的稳定性大于相IV和III的稳定性。通过在平均场计算框架内考虑$Γ_{\mathrm{5u}}$型AFO、$O_{xy}$型AFQ、$T_{xyz}$型AFO和AF交换的四种相互作用，结果似乎难以重现。
英文摘要：
We investigate the pressure effect of the electrical resistivity and magnetization of Ce$_{0.8}$La$_{0.2}$B$_{6}$. The situation in which phase IV stably exists inside phase II at H=0 T could be realized by applying a pressure above $P\sim 1.1$ GPa. This originates from the fact that the stability of phase II under pressure is larger than those of phases IV and III. The results seem to be difficult to reproduce by taking the four interactions of $Γ_{\mathrm{5u}}$-type AFO, $O_{xy}$-type AFQ, $T_{xyz}$-type AFO, and AF exchange into account within a mean-field calculation framework.
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