Electronic States in the Antiferromagnetic Phase of Electron-Doped High-Tc Cuprates

Preprint

16 June 2001

preprint
Published by arXiv in arXiv

Abstract

We investigate the electronic states in the antiferromagnetic (AF) phase of electron-doped cuprates by using numerically exact diagonalization technique for a t-t'-t''-J model. When AF correlation develops with decreasing temperature, a gap-like behavior emerges in the optical conductivity. Simultaneously, the coherent motion of carriers due to the same sublattice hoppings is enhanced. We propose that the phase is characterized as an AF state with small Fermi surface around the momentum k=(\pi,0) and (0,\pi). This is a remarkable contrast to the behavior of hole-doped cuprates.

Keywords

ANTIFERROMAGNETIC PHASE
OPTICAL CONDUCTIVITY
ELECTRONIC STATES
ELECTRON DOPED
DOPED CUPRATES
DOPED HIGH

All Related Versions

Version 1, 2001-06-16, ArXiv
Version 2, 2001-10-26, ArXiv
Published version: Physical Review B, 64 (21), 212505.

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