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  1. 1 2011

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  1. 1 Shi-Lei Y.

  2. 1 Wen L.

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

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Wen L., Shi-Lei Y.
Open Physics
|
2011
|
vol. 9
|
issue 4
1084-1089
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.
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