scholarly journals Magnetic-phase transition in the magnetic-polaron system studied with the Monte Carlo method: Anomalous specific heat ofEuB6

2006 ◽  
Vol 74 (9) ◽  
Author(s):  
Unjong Yu ◽  
B. I. Min
Keyword(s):  
Phase Transition ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Specific Heat ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Magnetic Polaron ◽  
The Monte Carlo Method

Concentration Phase Transition in a Two-Dimensional Ferromagnet

2020 ◽  
Vol 312 ◽  
pp. 244-250
Author(s):  
Alexander Konstantinovich Chepak ◽  
Leonid Lazarevich Afremov ◽  
Alexander Yuryevich Mironenko
Keyword(s):  
Phase Transition ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Thermal Effect ◽  
Spin State ◽  
Critical Concentration ◽  
Two Dimensional ◽  
Percolation Transition ◽  
Magnetic Cluster ◽  
The Monte Carlo Method

The concentration phase transition (CPT) in a two-dimensional ferromagnet was simulated by the Monte Carlo method. The description of the CPT was carried out using various order parameters (OP): magnetic, cluster, and percolation. For comparison with the problem of the geometric (percolation) phase transition, the thermal effect on the spin state was excluded, and thus, CPT was reduced to percolation transition. For each OP, the values ​​of the critical concentration and critical indices of the CPT are calculated.

scholarly journals Thermodynamic phase transition of a magnetic system curie temperature predicted by the Monte Carlo method

2020 ◽  
Vol 24 (4) ◽  
pp. 2295-2299
Author(s):  
Peng-Fei Dong ◽  
Zai-Zai Yan
Keyword(s):  
Phase Transition ◽  
Monte Carlo ◽  
Monte Carlo Method ◽  
Curie Temperature ◽  
Magnetic System ◽  
Mean Field Theory ◽  
Mean Field ◽  
The Monte Carlo Method ◽  
New Strategy ◽  
Thermodynamic Phase

Curie temperature is an important parameter in the second-order thermodynamic phase transition of a magnetic system. However, the classical Heisenberg?s mean field theory tends to overestimate heavily the temperature. In order to solve this problem, firstly, the structure of ferromagnetic and spin-glassy materials in a magnetic system is established by the Ising model. Secondly, the respective energy of ferromagnetic and spin glass states is calculated by Monte Carlo method. Finally, Curie temperature is predicted through the obtained energy, which agrees well with experimental data. A new strategy to estimate accurately Curie temperature is presented.

Specific heat of TMMC in the region of low temperature magnetic phase transition

1974 ◽  
Vol 15 (11-12) ◽  
pp. 1765-1768 ◽  
Author(s):  
B. Vis ◽  
C.K. Chau ◽  
H. Weinstock ◽  
R.E. Dietz
Keyword(s):  
Phase Transition ◽  
Low Temperature ◽  
Specific Heat ◽  
Magnetic Phase Transition ◽  
Magnetic Phase

Magnetic phase transition in KGd(WO4)2 double tungstate

Open Physics ◽  
2013 ◽  
Vol 11 (3) ◽  
Author(s):  
Mieczysław Borowiec ◽  
Tetyana Zayarnyuk ◽  
Maria Gutowska ◽  
Jarosław Więckowski ◽  
Andrzej Szewczyk ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Phase Transition ◽  
Critical Exponent ◽  
Specific Heat ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Zero Magnetic Field ◽  
Double Tungstate ◽  
Order Magnetic Phase Transition

AbstractInvestigations of the specific heat of the potassium gadolinium double tungstate KGd(WO4)2 have been performed over the temperature range from 0.05 K up to 4 K in zero magnetic field. The λ -type anomaly observed at T = 0.42 K was interpreted as an indication of a second order magnetic phase transition within the Gadolinium sublattice. The critical exponent α was determined from experimental data.

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