Fermi surface and magnetic properties ofCeTe
Fermi surface and magnetic properties ofCeTe
复制标题
DOI：
10.1103/physrevb.70.054421
复制
发表时间：
2004-08
影响因子：
3.7
通讯作者：
M. Nakayama;N. Kimura;H. Aoki;A. Ochiai;C. Terakura;T. Terashima;S. Uji
中科院分区：
文献类型：
--
作者：
M. Nakayama;N. Kimura;H. Aoki;A. Ochiai;C. Terakura;T. Terashima;S. Uji
我们生长了高质量的Kondo化合物及其参比化合物的单晶，并测量了这些化合物的De Haas-van Alphen效应和磁性。每个基准面的费米面中心位于布里渊区的点上，呈近似椭圆形。回旋加速器的有效质量与电子静止质量非常接近。另一方面，它有一个相当复杂的磁相图，这与以前的工作预测的不同。在的诱导铁磁相中，费米面与的相似，但由于电子和传导电子之间的交换作用，费米面分裂为多数和少数自旋费米面。在这一阶段，我们还观察到了回旋加速器有效质量的强烈增强。有趣的是，少数自旋表面的质量增强与多数自旋表面的质量增强相差约2倍。
We have grown high quality single crystals of the Kondo compoundand its reference compounds’s with, and measured the de Haas-van Alphen effect of these compounds and the magnetic properties of. The Fermi surface of eachis centered at thepoints of the Brillouin zone and has a nearly ellipsoidal shape. The cyclotron effective masses are very close to the electron rest mass. On the other hand,has a rather complicated magnetic phase diagram which is different from that predicted by previous works. In the induced ferromagnetic phase of, the Fermi surface is found to be similar to that ofbut it splits into the majority and minority spin Fermi surface due to the exchange interaction between theand conduction electrons. We have also observed strongly enhanced cyclotron effective masses in that phase. Interestingly, the mass enhancement of the minority spin surface differs with that of the majority spin surface by about a factor of 2.