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2003 | 103 | 4 | 403-414
Article title

Ground-State Energy of Biquadratic Spin Systems (S=3/2) in the (1/z)^1-Approximation

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EN
Abstracts
EN
Corrections to the molecular-field ground-state energies of the Heisenberg model with isotropic biquadratic interactions (spin S=3/2) are calculated in the (1/z)^1-approximation using the diagrammatic technique based on the Wick reduction theorem (z is the number of spins interacting with any given spin). The present results for the antiferri- and antiferromagnetic phases complete the previously obtained data for the antiquadrupolar, ferri- and ferromagnetic phases. From among the boundaries between different ground states only that between the antiferri- and antiferromagnetic phases is shifted with respect to its molecular-field value.
Keywords
Contributors
author
  • Department of Medical Biophysics, Medical University of Silesia, Medyków 18, 40-752 Katowice, Poland
author
  • Institute of Physics, Silesian University, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • Department of Medical Biophysics, Medical University of Silesia, Medyków 18, 40-752 Katowice, Poland
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv103n407kz
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