| 正方形晶格上反铁磁Gauss模型的相变 |
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| 引用本文： | 尹训昌,张平伟,孙光厚,黄国栋. 正方形晶格上反铁磁Gauss模型的相变[J]. 四川大学学报(自然科学版), 2010, 47(4) |
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| 作者姓名： | 尹训昌 张平伟 孙光厚 黄国栋 |
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| 作者单位： | 安庆师范学院物理与电气工程学院,安庆师范学院物理与电气工程学院,九江学院理学院,安庆师范学院物理与电气工程学院 |
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| 摘 要： | 应用键移重整化群的方法,研究了正方形晶格上反铁磁Gauss模型的相变,求出了系统的临界点和临界指数．结果表明,此系统存在有限的温度相变,与该晶格上的Ising模型相比较,系统的临界指数发生了变化．这表明它们属于不同的普适类．
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| 关 键 词： | 正方形晶格 Gauss模型 反铁磁 相变 |
| 修稿时间： | 2009-04-15 |
The phase transition of anti-ferromagnet Gauss model on square lattice |
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| Yin Xun-Chang,ZHANG Ping-wei,SUN Guang-hou and HUANG Guo-dong. The phase transition of anti-ferromagnet Gauss model on square lattice[J]. Journal of Sichuan University (Natural Science Edition), 2010, 47(4) |
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| Authors: | Yin Xun-Chang ZHANG Ping-wei SUN Guang-hou HUANG Guo-dong |
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| Affiliation: | School of Physics and Electric Engineering , Anqing Teachers College,College of Science, Jiujiang University,School of Physics and Electric Engineering , Anqing Teachers College |
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| Abstract: | Using the bond-moving renormalization-group technique, the phase transition of anti-ferromagnet Gauss model on square lattice is studied, and its fixed points and critical exponents are obtained. The results show that there exists finite temperature phase transition, compared with the Ising model on square lattice, the critical exponents have changed. It is found that they belong to different university class. |
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| Keywords: | square lattice Gauss model anti-ferromagnet phase transition |
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