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Title: Dynamics of Coupled Quantum Spin Chains

Abstract

Static and dynamical properties of weakly coupled antiferromagnetic spin chains are treated using a mean-field approximation for the interchain coupling and exact results for the resulting effective one-dimensional problem. Results for staggered magnetization, N{acute e}el temperature, and spin wave excitations are in agreement with experiments on KCuF{sub 3}. The existence of a narrow longitudinal mode is predicted. The results are in agreement with general scaling arguments, contrary to spin wave theory. {copyright} {ital 1996 The American Physical Society.}

Authors:
 [1]
  1. Laboratoire de Physique des Solides, Universite Paris--Sud, 91405 Orsay (France)
Publication Date:
OSTI Identifier:
385755
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 77; Journal Issue: 13; Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; ANTIFERROMAGNETISM; SPIN; CHAINS; COUPLING; MAGNETIZATION; POTASSIUM FLUORIDES; COPPER FLUORIDES; SCALING; HEISENBERG MODEL; STRONTIUM OXIDES; COPPER OXIDES

Citation Formats

Schulz, H J. Dynamics of Coupled Quantum Spin Chains. United States: N. p., 1996. Web. doi:10.1103/PhysRevLett.77.2790.
Schulz, H J. Dynamics of Coupled Quantum Spin Chains. United States. https://doi.org/10.1103/PhysRevLett.77.2790
Schulz, H J. Sun . "Dynamics of Coupled Quantum Spin Chains". United States. https://doi.org/10.1103/PhysRevLett.77.2790.
@article{osti_385755,
title = {Dynamics of Coupled Quantum Spin Chains},
author = {Schulz, H J},
abstractNote = {Static and dynamical properties of weakly coupled antiferromagnetic spin chains are treated using a mean-field approximation for the interchain coupling and exact results for the resulting effective one-dimensional problem. Results for staggered magnetization, N{acute e}el temperature, and spin wave excitations are in agreement with experiments on KCuF{sub 3}. The existence of a narrow longitudinal mode is predicted. The results are in agreement with general scaling arguments, contrary to spin wave theory. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevLett.77.2790},
url = {https://www.osti.gov/biblio/385755}, journal = {Physical Review Letters},
number = 13,
volume = 77,
place = {United States},
year = {1996},
month = {9}
}