Renormalization group description of the effect of structural defects on phase transitions in complex spin systems with random anisotropy effects and structural defects

被引：0
作者：
V. V. Dubs
V. V. Prudnikov
P. V. Prudnikov
机构：
[1] Dostoevsky Omsk State University,
来源：
Theoretical and Mathematical Physics | 2017年 / 190卷
关键词：
phase transition; amorphous magnet; anisotropy; structural defect; renormalization group method; summation method;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
For the first time, we present a field theory description of the phase transition in an amorphous magnet with the effects of both random anisotropy and structural defects in the two-loop approximation with the fixed dimension d = 3. For this multivertex model, we determine the system of fixed points of the renormalization group equations and calculate the stability exponents using the Padé–Borel summation method. We show the role of structural defects as stabilizing factors in second-order phase transitions.
引用
收藏
页码：359 / 365
页数：6
相关论文
共 15 条
[1]  
Lyuksyutov I. F.(1975)First-order phase transitions in systems with cubic anisotropy JETP Lett. 21 9-11
[2]  
Pokrovskii V. L.(1976)Physical realizations of n=4-component vector models: I. Derivation of the Landau–Ginzburg–Wilson Hamiltonians Phys. Rev. B. 13 5065-5077
[3]  
Mukamel D.(1976)Physical realizations of n=4-component vector models: II. e-Expansion analysis of the critical behavior Phys. Rev. B. 13 5078-5085
[4]  
Krinsky S.(2009)Phase transition properties of three-dimensional systems described by diluted Potts model JETP 109 442-445
[5]  
Mukamel D.(2001)On the critical behaviour of random anisotropy magnets: Cubic anisotropy Condens. Matter Phys. 4 459-472
[6]  
Krinsky S.(1982)Critical behavior of random systems Phys. Rev. B. 25 381-388
[7]  
Murtazaev A. K.(1983)Critical behavior of disordered spin systems in two and three dimensions Phys. Rev. B. 27 609-612
[8]  
Babaev A. B.(undefined)undefined undefined undefined undefined-undefined
[9]  
Aznaurova G. Ya.(undefined)undefined undefined undefined undefined-undefined
[10]  
Dudka M.(undefined)undefined undefined undefined undefined-undefined
12