弱色散重费密子合金模型的电阻率  

ELECTRICAL RESISTIVITY OF THE WEAK-DISPERSION HEAVY-FERMION ALLOY MODEL

作　　者：李正中[1] 许望 周青春 

机构地区：[1]南京大学物理系,南京210008

出　　处：《物理学报》1991年第2期281-288,共8页Acta Physica Sinica

基　　金：国家自然科学基金

摘　　要：本文从Yoshimori-Kasai模型出发,应用slave-boson技巧,计算重费密子合金的电阻率,在平均场近似下,应用相干势近似(CPA)方法,求出合金的剩余电阻,并计入slave-boson场的涨落,解释了高浓度情况下重费密子合金出现电阻率低温极大的实验结果。The electrical resistivity of the heavy-fer mion alloy system is calculated through the Yoshimori-Kasai model with the application of the slave-boson technique. The residual resistivity of the system is found in the mean-field approximation by using the CPA method-The low-temperature resistivity maximum in the concentrated alloy is aslo obtained as the Gaussian fluctuation of the slave-boson field is included.

关 键 词：重费密子合金 电阻率 弱色散 

分 类 号：TG111[金属学及工艺—物理冶金]