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Title: Novel Mechanism of a Charge Density Wave in a Transition Metal Dichalcogenide

Journal Article · · Phys.Rev.Lett.99:216404,2007
OSTI ID:958657

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.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
958657
Report Number(s):
SLAC-REPRINT-2009-018; PRLTAO; TRN: US201001%%656
Journal Information:
Phys.Rev.Lett.99:216404,2007, Vol. 99, Issue 21; ISSN 0031-9007
Country of Publication:
United States
Language:
English