Modelling of the size effect's influence on the critical temperature of the nanowires' phase transition

5th International Conference on Mathematical Modeling in Physical Sciences

物理学;数学

Leonid, Afremov^1 ; Aleksandr, Petrov^1

Department of Theoretical and Nuclear Physics, School of Natural Sciences, Far Eastem Federal University, 8, Sukhanova St., Vladivostok

690950, Russia^1

关键词: Calculated values;    Critical exponent;    Critical temperatures;    Experimental values;    Magnetic phase transitions;    Size effects;    Spin-spin correlation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/738/1/012025/pdf
DOI  :  10.1088/1742-6596/738/1/012025

来源: IOP

【 摘 要 】

Influence of the size effect on the magnetic phase transition's temperature and magnetic moment of the nanowires was modelled based on "average spin" method. As it was shown that Curie temperature was increased with nanowires' sizes increase. The calculated value of the critical exponent of the spin-spin correlations v = 0.737 is close to experimental value.