Dynamics of Coupled Quantum Spin Chains

doi:https://doi.org/10.1103/PhysRevLett.77.2790

Title: Dynamics of Coupled Quantum Spin Chains

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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:

Schulz, H J ^[1]

Laboratoire de Physique des Solides, Universite Paris--Sud, 91405 Orsay (France)

Publication Date:: 1996-09-01

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

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                    Schulz, H J. Dynamics of Coupled Quantum Spin Chains.  United States: N. p., 1996. 
        Web.  doi:10.1103/PhysRevLett.77.2790.

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                    Schulz, H J. Dynamics of Coupled Quantum Spin Chains.  United States.  https://doi.org/10.1103/PhysRevLett.77.2790

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                    Schulz, H J. Sun .  
        "Dynamics of Coupled Quantum Spin Chains".  United States.  https://doi.org/10.1103/PhysRevLett.77.2790.

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@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}

}

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https://doi.org/10.1103/PhysRevLett.77.2790

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