Charge-density-wave mechanism in 2H-NbSe2:: Photoemission results

被引：118

作者：

Straub, T

Finteis, T

Claessen, R ^{[1
]}

Steiner, P

Hüfner, S

Blaha, P

Oglesby, CS

Bucher, E

机构：

[1] Univ Saarland, Fachrichtung Expt Phys, D-66041 Saarbrucken, Germany

[2] Univ Augsburg, D-86135 Augsburg, Germany

[3] Tech Univ Vienna, Inst Tech Elektrochem, A-1060 Vienna, Austria

[4] Lucent Technol, Murray Hill, NJ 07974 USA

[5] Univ Konstanz, Fak Phys, D-78434 Constance, Germany

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.82.4504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The layered charge-density-wave (CDW) material 2H-NbSe2 was studied by angle-resolved photoelectron spectroscopy. We present the first experimental mapping of the Fermi surface (FS) portions involved in the CDW transition. From this and additional data on the conduction band dispersion near the Fermi level we conclude that the CDW instability in this material is driven by FS nesting and not by saddle point singularities. [S0031-9007(99)09298-4].

引用

页码：4504 / 4507

页数：4

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