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RESEARCH PRODUCT
Coulomb interaction in disordered metals and HTSC
M. S. OsofskyG. TrotterJulien BokHeung Soo KimJ. BouvierJ. Bouviersubject
PhysicsCondensed matter physicsFermi levelEnergy Engineering and Power TechnologyElectronCondensed Matter PhysicsElectronic Optical and Magnetic Materialssymbols.namesakeCondensed Matter::SuperconductivityCoulombDensity of statessymbolsCondensed Matter::Strongly Correlated ElectronsCuprateElectrical and Electronic EngineeringDiffusion (business)PseudogapAnisotropydescription
Abstract We consider underdoped or overdoped cuprates as disordered conductors. The diffusion coefficient D can be as low as 10 −5 m 2 s −1 . Under these conditions Coulomb interaction between electrons must be taken into account. The main effect is to open a dip in the density of state near the Fermi level. We show that this model explains most of the observed features of the so-called “pseudogap” in the normal state including its value, anisotropy and variation with doping. Such a model applied to disordered metals explains the dips observed in conductance measurements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-11-01 | Physica C: Superconductivity and its Applications |