Fermi surface of Bi(111) measured by photoemission spectroscopy -: art. no. 177602
Fermi surface of Bi(111) measured by photoemission spectroscopy -: art. no. 177602
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DOI：
10.1103/physrevlett.87.177602
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发表时间：
2001-10-22
影响因子：
8.6
通讯作者：
Höchst, H
中科院分区：
文献类型：
--
作者：
Ast, CR;Höchst, H
BI的同步加速器辐射分辨的光发射光谱（111）表明，费米表面由沿着（$）的六个伸长的孔袋组成，沿着（$）的（$）围绕着一个以二维特性为中心的环形电子口袋的杆方向组成。相关的孔和电子板密度分别为p（s）= 1.1 x 10（13）cm（-2）和N（s）5.5 x 10（12）cm（-2）。确定了与费米表面中的散装孔相关的弱发射特征。 t点附近的散装孔带的费米动量为k，= 0.013 +/- 0.003 Angstrom（-1）。
Synchrotron radiation angle-resolved photoemission spectroscopy of Bi(111) shows that the Fermi surface consists of six elongated hole pockets along the ($) over bar directions surrounding a ring-shaped electron pocket centered at , all of which have two-dimensional character. The associated hole and electron sheet densities are p(s) = 1.1 x 10(13) cm(-2) and n(s) 5.5 x 10(12) cm(-2), respectively. A weak emission feature associated with the bulk hole pocket in the Fermi surface was identified. The Fermi momentum of the bulk hole band near the T point is k, = 0.013 +/- 0.003 Angstrom (-1).