Polaron States in a CuO Chain

• Authors: K. Bieniasz , A. Oleś
• Languages of publication: EN

Abstracts

EN

We introduce a one-dimensional model for a CuO chain, with holes and S=1/2 spins localized in 3d_{x²-y²} orbitals, and p_σ oxygen orbitals without holes in the ground state. We consider a single hole doped at an oxygen site and study its propagation by spin-flip processes. We develop the Green function method and treat the hole-spin coupling in the self-consistent Born approximation, similar to that successfully used to study polarons in the regular t-J model. We present an analytical solution of the problem and investigate whether the numerical integration is a good approximation to this solution.

Keywords

EN

72.10.Di; 75.10.Pq; 75.50.Ee

Discipline

• 75.10.Pq: Spin chain models
• 75.50.Ee: Antiferromagnetics
• 72.10.Di: Scattering by phonons, magnons, and other nonlocalized excitations(see also 71.45.-d Collective effects in electronic structure of bulk materials)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 269-271

Dates

published

2015-02

Contributors

author

K. Bieniasz

• Marian Smoluchowski Institute of Physics, Jagiellonian University, W.S. Reymonta 4, PL-30-059, Kraków, Poland

author

A. Oleś

• Marian Smoluchowski Institute of Physics, Jagiellonian University, W.S. Reymonta 4, PL-30-059, Kraków, Poland
• Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, D-70569 Stuttgart, Germany

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Identifiers

DOI

10.12693/APhysPolA.127.269