Abstract
We propose a theory for quasi-two-dimensional transition metal dichalcogenides that provides a unified microscopic picture of the charge density wave (CDW) and superconducting phases. We show, based on the electron-phonon coupling and Fermi surface topology, that a CDW order parameter with sixfold symmetry and nodes ( f-wave) gives a consistent description of the available experimental data. The elementary excitations in the CDW phase are Dirac electrons. The superconducting state has its origin on the attractive interaction mediated by phonons. The theory predicts strong deviations from Fermi liquid theory in the CDW phase.
Keywords
Condensed matter physicsSuperconductivityCharge density wavePhysicsFermi surfaceFermi liquid theoryElectronPhononFermi levelQuantum mechanics
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Publication Info
- Year
- 2001
- Type
- article
- Volume
- 86
- Issue
- 19
- Pages
- 4382-4385
- Citations
- 475
- Access
- Closed
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Cite This
A. H. Castro Neto
(2001).
Charge Density Wave, Superconductivity, and Anomalous Metallic Behavior in 2D Transition Metal Dichalcogenides.
Physical Review Letters
, 86
(19)
, 4382-4385.
https://doi.org/10.1103/physrevlett.86.4382
Identifiers
- DOI
- 10.1103/physrevlett.86.4382