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Open Physics

formerly Central European Journal of Physics

Editor-in-Chief: Seidel, Sally

Managing Editor: Lesna-Szreter, Paulina


IMPACT FACTOR 2018: 1.005

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Volume 9, Issue 4

Issues

Volume 13 (2015)

Critical properties of a random transverse crystal field Ising model with bond dilution

Ling Wen / Yan Shi-Lei
  • Department of Physics, Suzhou University, Suzhou, 215006, China
  • Jiangsu Key Loboratory of Film Materials, Suzhou University, Suzhou, 215006, China
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Published Online: 2011-04-30 | DOI: https://doi.org/10.2478/s11534-010-0050-8

Abstract

Within effective field theory (EFT), the critical properties of a random transverse crystal field Ising model with bond dilution are studied on a square lattice. Under both weak and strong bond dilution conditions, we consider three cases (α = 0,±0.5) of a transverse crystal field ratio, obtaining global phase diagrams in T−D x space for changes in the random transverse crystal field concentration. The phase diagrams obtained for a weak bond dilution are very similar in shape to those of pure bond but with decreases in corresponding ordered phases and critical values. However, the phase diagrams for a strong bond dilution exhibit varieties, including a change in reentrant phenomenon, the occurrence of transverse crystal field degeneration, and the opposite direction crossover of temperature peak value.

Keywords: random transverse crystal field Ising model; critical properties; bond dilution

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About the article

Published Online: 2011-04-30

Published in Print: 2011-08-01


Citation Information: Open Physics, Volume 9, Issue 4, Pages 1084–1089, ISSN (Online) 2391-5471, DOI: https://doi.org/10.2478/s11534-010-0050-8.

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© 2011 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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