The field-induced laws of thermodynamic properties in the two-dimensional spin-1 ferromagnetic Heisenberg model with the exchange and single-ion anisotropies
作者： Qiurong Pu , Yuan Chen
DOI: 10.1016/J.PHYSB.2012.09.063
关键词:
摘要: Abstract Green's function method is applied to investigate the two-dimensional spin-1 ferromagnetic Heisenberg model with exchange and single-ion anisotropies. In presence of magnetic field, effects anisotropies field on thermodynamic properties are obtained within random phase approximation combining Anderson–Callen approximation. The field-induced laws found for properties. Field dependences heights susceptibility maximum specific heat fit well power laws. linear increase at high fields shown positions maximum. A law low occurs position At maxima, magnetization internal energy display power-law decrease respectively. exponents dependent anisotropies, as slopes Our results do not support 2/3 which was by Landau theory.
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sci-hub.se 参考文章(25)
P.J. Jensen, P. Fröbrich, P.J. Kuntz, Field-induced magnetic reorientation and effective anisotropy of a ferromagnetic monolayer within spin wave theory European Physical Journal B. ,vol. 13, pp. 477- 489 ,(2000) , 10.1007/S100510050059
Richard A. Klemm, Dmitri V. Efremov, Single-ion and exchange anisotropy effects and multiferroic behavior in high-symmetry tetramer single molecule magnets Physical Review B. ,vol. 77, pp. 184410- ,(2008) , 10.1103/PHYSREVB.77.184410
J. Sznajd, Field dependence of the susceptibility maximum temperature in ferromagnets Physical Review B. ,vol. 64, pp. 052401- ,(2001) , 10.1103/PHYSREVB.64.052401
I. Juhász Junger, D. Ihle, L. Bogacz, W. Janke, Thermodynamics of Heisenberg ferromagnets with arbitrary spin in a magnetic field Physical Review B. ,vol. 77, pp. 174411- ,(2008) , 10.1103/PHYSREVB.77.174411
C. Ekiz, H. Yaraneri, The magnetization plateaus of general Ising system with single-ion anisotropy Journal of Magnetism and Magnetic Materials. ,vol. 318, pp. 49- 57 ,(2007) , 10.1016/J.JMMM.2007.04.022
Chuang-Chuang Song, Yuan Chen, Ming-Wei Liu, One-dimensional spin-1 ferromagnetic Heisenberg model with exchange anisotropy and single-ion anisotropy under external magnetic field Physica B-condensed Matter. ,vol. 405, pp. 439- 445 ,(2010) , 10.1016/J.PHYSB.2009.09.003
Ai-Yuan Hu, Yuan Chen, Li-Jun Peng, Field dependence of the susceptibility maximum in the anisotropic Heisenberg ferromagnet Physica B-condensed Matter. ,vol. 393, pp. 368- 372 ,(2007) , 10.1016/J.PHYSB.2007.01.026
I. Junger, D. Ihle, J. Richter, A. Klümper, Green-function theory of the heisenberg ferromagnet in a magnetic field Physical Review B. ,vol. 70, pp. 104419- ,(2004) , 10.1103/PHYSREVB.70.104419
F. Burr Anderson, Herbert B. Callen, Statistical Mechanics and Field-Induced Phase Transitions of the Heisenberg Antiferromagnet Physical Review. ,vol. 136, pp. A1068- A1087 ,(1964) , 10.1103/PHYSREV.136.A1068
Alfred Hucht, Sanjubala Sahoo, Shreekantha Sil, Peter Entel, Effect of anisotropy on small magnetic clusters Physical Review B. ,vol. 84, pp. 104438- ,(2011) , 10.1103/PHYSREVB.84.104438