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本文应用slave-boson技巧,在平均场近似下,计算外加磁场作用下重电子金属的比热系数和磁化强度。结果表明,外加磁场对系统的重费密子特性具有压制作用。此外。还对重电子金属中反常磁致伸缩的实验结果给出理论解释。The specific heat coefficient and magnetization of the heavy electron metals in a nonzero magnetic field are calculated by using the slave boson mean field theory. The results indicate that the heavy fermion feature of the system is depressed in the magnetic field. A theoretical explanation for anomalous volume magnetostriction of the heavy electron metals is also given in this paper.
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