The open archive for STFC research publications

Full Record Details

Persistent URL http://purl.org/net/epubs/work/11206732
Record Status Checked
Record Id 11206732
Title Phase diagram of a three orbital model for the high Tc cuprates
Abstract We study the phase diagram of an effective three orbital model of the cuprates using Variational Monte-Carlo calculations (VMC) on asymptotically large lattices and exact diagonalization on a 24-site cluster. States with ordered orbital current loops (LC), itinerant Anti-ferromagnetism (AFM), d-wave superconductivity (SC), and the Fermi-liquid (FL) are investigated using appropriate Slater determinants refined by Jastrow functions for on-site and inter-site correlations. We find an LC state stable in the thermodynamic limit for a range of parameters compatible with the Fermi surface of a typical hole doped superconductors provided the transfer integrals between the oxygen atoms have signs determined by the effects of indirect transfer through the Cu-4s orbitals as suggested by O.K. Andersen. The results of the calculations are that this phase gives way at lower dopings to an AFM phase and at larger copings to a SC phase followed by a FL phase.
Organisation STFC , HC
Funding Information
Related Research Object(s):
Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev Lett 112 (2014): 117001. doi:10.1103/PhysRevLett.112.117001 2014
Showing record 1 of 1
Science and Technology Facilities Council Switchboard: 01793 442000