The Effects of the Random Transverse Crystal Field on the Spin-1 Model

• Authors: E. Albayrak
• Languages of publication: EN

Abstracts

EN

The effects of random transverse crystal field are investigated in the mean-field approximation on the spin-1 model. The transverse crystal field is applied on a lattice in a bimodal random distribution with a tunable parameter adjusting the strength of one mode with respect to the other one. Then, the phase diagrams are calculated on the reduced temperature-transverse crystal field planes for given values of probability p and coordination number q at zero external magnetic field h. It was found that the model gives both second- and first-order phase transitions and tricritical points which is a well-known behavior of the spin-1 model. In addition, the model also yields critical end points and end points for the first-order phase transition lines for appropriate p values.

Keywords

EN

75.10.Hk; 75.30.Kz; 75.50.Gg

Discipline

• 75.50.Gg: Ferrimagnetics
• 75.10.Hk: Classical spin models
• 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)

• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 3
• Pages: 818-822

Dates

published

2015-03

received

2014-08-08

(unknown)

2015-01-17

Contributors

author

E. Albayrak

• Erciyes University, Department of Physics, 38039, Kayseri, Turkey

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Identifiers

DOI

10.12693/APhysPolA.127.818