Ferromagnetism of potassium metal under pressure loading into zeolite low-silica X
Ferromagnetism of potassium metal under pressure loading into zeolite low-silica X
复制标题
金属钾在低硅X沸石中加压加载的铁磁性
DOI：
10.1103/physrevb.99.094403
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发表时间：
2019
影响因子：
3.7
通讯作者：
Nozue Yasuo
中科院分区：
文献类型：
--
作者：
Araki Shingo;Hoang Nam Nguyen;Shimodo Kota;Nakano Takehito;Nozue Yasuo
在1.5GPa的负载压力下，将金属钾负载到K型沸石低硅中。在13 K以下0.9GPa下观察到铁磁性。在铁磁加载压力下，K原子的加载密度估计为每笼，压力导数加载密度在GPa处有一个显著的峰值。在一个简单的模型上，由的值估算出费米能级处的态密度为态/eV/笼。所观察到的铁磁性的斯通纳条件和理论的修订罗德-沃尔法斯图进行了讨论。
Potassium metal was loaded into K-form zeolite low-silicaunder the loading pressureup to 1.5 GPa. A ferromagnetism is observed at0.9 GPa below 13 K. The loading density of K atomis estimated to beper cage at the ferromagnetic loading pressure, and the pressure-derivative loading densityhas a remarkable peakatGPa. The density of states at the Fermi energy is estimated to bestates/eV per cage from the value ofon a simple model. The observed ferromagnetism is discussed in terms of the Stoner condition and the theory of the revised Rhodes-Wohlfarth plot.