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Unified quantum mechanical picture for confined spinons in dimerized and frustrated spin chains

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The European Physical Journal B - Condensed Matter and Complex Systems Aims and scope Submit manuscript

Abstract:

A quantum mechanical picture is presented to describe the behavior of confined spinons in a variety of S =1/2 chains. The confinement is due to dimerization and frustration and it manifests itself as a nonlinear potential , centered at chain ends () or produced by modulation kinks (b > 1). The calculation extends to weak or zero frustration some previous ideas valid for spinons in strongly frustrated spin chains. The local magnetization patterns of the confined spinons are calculated. A (minimum) enhancement of the local moments of about 11/3 over a single S =1/2 is found. Estimates for excitation energies and binding lengths are obtained.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany, , , , , , DE

    G.S. Uhrig & F. Schönfeld

  2. National High Magnetic Field Laboratory and Department of Physics, Florida State University, Tallahassee, Florida 32306, USA, , , , , , US

    M. Laukamp & E. Dagotto

Authors
  1. G.S. Uhrig
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  2. F. Schönfeld
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  3. M. Laukamp
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  4. E. Dagotto
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Received: 8 May 1998 / Revised and Accepted: 12 August 1998

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Uhrig, G., Schönfeld, F., Laukamp, M. et al. Unified quantum mechanical picture for confined spinons in dimerized and frustrated spin chains. Eur. Phys. J. B 7, 67–77 (1999). https://doi.org/10.1007/s100510050589

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  • DOI: https://doi.org/10.1007/s100510050589

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