Angular magnetoresistance oscillations and the shape of the Fermi surface in β(ET)2IBr2
Angular magnetoresistance oscillations and the shape of the Fermi surface in β(ET)2IBr2
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β(ET)2IBr2 中的角磁阻振荡和费米面形状
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
V. Yakovenko
中科院分区：
文献类型：
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作者：
M. Kartsovnik;V. Laukhin;S. Pesotskii;I. Schegolev;V. Yakovenko
本文系统地研究了fl（ET）_2IBr_2在垂直于导电（a，B）面的一系列平面内旋转磁场中的角磁阻振荡。在所有研究的平面中都发现了这种振荡。费米表面横截面的形状已被重建使用所获得的数据。慢舒布尼科夫-德哈斯振荡频率的角度依赖性和角磁阻振荡的一些精细特征也允许讨论费米表面纵截面的结构。费米面很可能由主圆柱体组成，主圆柱体上有倾斜的翘曲面，翘曲面之间有小的凹穴或颈。
Angular magnetoresistance oscillations have been studied systematically for fl(ET)2 IBr2 in the magnetic field rotating in a series of planes perpendicular to the conducting (a, b)plane. The oscillations have been found in all studied planes. The shape of the Fermi surface transverse cross-section has been reconstructed using the obtained data. Angular dependence of the slow Shubnikov-de Haas oscillations frequency and some fine features of angular magnetoresistance oscillations permit to discuss also the structure of the Fermi surface longitudinal cross-section. The Fermi surface consists most likely of main cylinders with inclined warping planes and small pockets or necks between them.