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

• Authors: Ling Wen , Yan Shi-Lei
• Languages of publication: EN

Abstracts

EN

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

EN

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

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 4
• Pages: 1084-1089

Dates

published

1 - 8 - 2011

online

30 - 4 - 2011

Contributors

author

Ling Wen

• Department of Physics, Suzhou University, Suzhou, 215006, China

author

Yan Shi-Lei

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Identifiers

DOI

10.2478/s11534-010-0050-8