Dynamic scaling analysis of the long-range RKKY Ising spin glass DyxY1－xRu2Si2

Dynamic scaling analysis of the long-range RKKY Ising spin glass DyxY1－xRu2Si2
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远距离RKKY伊辛自旋玻璃DyxY1－xRu2Si2的动态尺度分析

DOI：
10.1103/physrevb.96.184406
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发表时间：
2017
期刊：
Phys. Rev. B
影响因子：
--
通讯作者：
Hiroyuki Nakamura
Hiroyuki Nakamura
中科院分区：
--
文献类型：
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作者：
Yoshikazu Tabata;Takeshi Waki;Hiroyuki Nakamura

文献摘要

相似文献

研究了长程ruderman - kittel - kasuyya - yosida (RKKY) Ising自旋玻璃（SG）模型磁体的线性和非线性交流磁化率的动态标度分析。所得到的临界指数1、1、2和3.4表明SG相变属于一个与经典（Heisenberg）或短程Ising SGs相变不同的普适性类。分析还揭示了在磁场作用下具有相同临界指数的有限温度SG相变和由，与2描述的相变线。交叉指数服从误差范围内的标度关系。这些结果有力地表明，在长程RKKY - isingsg中，自发复制对称性破缺具有非或边际平均场普世性。
Dynamic scaling analyses of linear and nonlinear ac susceptibilities in a model magnet of the long-rang Ruderman-Kittel-Kasuya-Yosida (RKKY) Ising spin glass (SG)were examined. The obtained set of critical exponents,1,1,2, and3.4, indicates the SG phase transition belongs to a universality class different from that of either the canonical (Heisenberg) or short-range Ising SGs. The analyses also reveal a finite-temperature SG transition with the same critical exponents under a magnetic field and the phase-transition linedescribed by, with2. The crossover exponentobeys the scaling relationwithin the margin of errors. These results strongly suggest spontaneous replica-symmetry breaking (RSB) with a non- or marginal-mean-field universality class in the long-range RKKY Ising SG.