Artículo
Strong particle-hole asymmetry of charge instabilities in doped Mott insulators
Fecha de publicación:
12/2014
Editorial:
IOP Publishing
Revista:
New Journal of Physics
ISSN:
1367-2630
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We study possible charge instabilities in doped Mott insulators by employing the two-dimensional t-J model with a positive value of the next nearest-neighbour hopping integral t on a square lattice, which is applicable to electron-doped cuprates. While the d-wave charge density wave (flux phase) and d-wave Pomeranchuk instability (nematic order) are dominant instabilities for a negative t which corresponds to hole-doped cuprates, we find that those instabilities are strongly suppressed and become relevant only rather close to half-filling. Instead, various types of bond orders with modulation vectors close to (π, π) are dominant in a moderate doping region. Phase separation is also enhanced, but can be suppressed substantially by the nearest-neighbour Coulomb repulsion without affecting the aforementioned charge instabilities.
Palabras clave:
Electron- And Hole-Doped Cuprates
,
Pseudogap
,
Charge Orders
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - ROSARIO)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - ROSARIO
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - ROSARIO
Articulos(IFIR)
Articulos de INST.DE FISICA DE ROSARIO (I)
Articulos de INST.DE FISICA DE ROSARIO (I)
Citación
Bejas, Matias Hector; Greco, Andres Francisco; Yamase, Hiroyuki; Strong particle-hole asymmetry of charge instabilities in doped Mott insulators; IOP Publishing; New Journal of Physics; 16; 12-2014; 123002-123002
Compartir
Altmétricas