Journals of the American Physical Society - One-particle spectral properties of the $t$-$J$-$V$ model on the triangular lattice near charge order

About the Journals
Search the Journals
APS Home
Join APS
PACS Scheme
Annual Index
BAPS
APS arXiv Mirror

Authors

General Information
Submit a Manuscript
Copyright Form
Free to Read
Policies & Practices
Tips for Authors
Professional Conduct

Referees

General Information
Submit a Report
Outstanding Referees
Update Your Information
Policies & Practices
Referee FAQ
Advice to Referees

Librarians

General Information
Subscriptions
Online License Agreement
Usage Statistics

Students

Physical Review Focus
PhysicsCentral
Student Membership

APS Members

Subscriptions
Article Packs
Membership
APS News
Meetings and Events

January 2008, to be published in Physical Review B15

One-particle spectral properties of the $t$-$J$-$V$ model on the triangular lattice near charge order
M. Bejas, A. Greco, A. Muramatsu, and A. Foussats

We study the $t$-$J$-$V$ model beyond mean field level at finite doping on the triangular lattice. The Coulomb repulsion $V$ between nearest neighbors brings the system to a charge ordered state for $V$ larger than a critical value $V_c$. One-particle spectral properties as self-energy, spectral functions and the quasiparticle weight are studied near and far from the charge ordered phase. When the system approaches the charge ordered state, charge fluctuations become soft and they strongly influence the system leading to incoherent one-particle excitations. Possible implications for cobaltates are given.

Article Lookup

Journal Search

Site Search