Novel mechanism of a charge density wave in a transition metal dichalcogenide.

Shen, D W; Xie, B P; Zhao, J F; Yang, L X; Fang, L; Shi, J; He, R H; Lu, D H; Wen, H H; Feng, D L

Shen, D W; Xie, B P; Zhao, J F; Yang, L X; Fang, L; Shi, J; He, R H; Lu, D H; Wen, H H; Feng, D L.

Afiliación

Shen DW; Department of Physics, Applied Surface Physics State Key Laboratory, Fudan University, Shanghai 200433, China.

Phys Rev Lett ; 99(21): 216404, 2007 Nov 23.

Article en En | MEDLINE | ID: mdl-18233236

RESUMEN

The charge density wave (CDW) is usually associated with Fermi surfaces nesting. We here report a new CDW mechanism discovered in a 2H-structured transition metal dichalcogenide, where the two essential ingredients of the CDW are realized in very anomalous ways due to the strong-coupling nature of the electronic structure. Namely, the CDW gap is only partially open, and charge density wave vector match is fulfilled through participation of states of the large Fermi patch, while the straight Fermi surface sections have secondary or negligible contributions.

Buscar en Google

Añadir a Mi BVS

Imprimir

XML

PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2007 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos

Buscar en Google

Añadir a Mi BVS

Imprimir

XML

PubMed Links