Lack of photon energy dependence of the Fermi surface of n=1 Bi2Sr2-xLaxCuO6+δ-single crystals

被引：8

作者：

Müller, R ^{[1
]}

Janowitz, C ^{[1
]}

Schneider, M ^{[1
]}

Krapf, A ^{[1
]}

Dwelk, H ^{[1
]}

Manzke, R ^{[1
]}

机构：

[1] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany

来源：

PHYSICA C | 2000年 / 341卷

关键词：

D O I：

10.1016/S0921-4534(00)01144-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The accuracy in Fermi surface determination of the most commonly studied HTc- superconductor Bi2Sr2CaCu2O8 in the non-superconducting state depends on a number of parameters. The occurence of shadow and umklapp bands yields replicas of the Fermi surface. Besides sample quality (leading to scattering and therewith broadening) furthermore the magnitude of the bilayer splitting for n=2 compounds is not quantitatively accessible. In the case of Bi2Sr2-xLaxCuO6+delta with only one CuO2 layer per unit cell a number of these parameters can be controlled in a way that the intrinsic linewidth and dispersion can be determined more unequivocally. In this contribution we investigate the Fermi surface of n=1 material at various photon energies by high resolution photoemission.

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收藏

页码：2109 / 2110

页数：2

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