Influence of Doping on the Mott Metal-Insulator Transition in Infinite Dimensions

TONG Ning-Hua

理论物理通讯 ›› 2002, Vol. 37 ›› Issue (05) : 615-618.

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会计学季刊
Quarterly Journal of Accounting
主办单位:
香港中文大学会计学院
上海财经大学会计学院
南京大学商学院会计学系
ISSN: 3006-1415
PDF(292 KB)
理论物理通讯 ›› 2002, Vol. 37 ›› Issue (05) : 615-618.

Influence of Doping on the Mott Metal-Insulator Transition in Infinite Dimensions

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Influence of Doping on the Mott Metal-Insulator Transition in Infinite Dimensions

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Abstract

We have studied the effect of hole-doping on the established scenerio of the first-order Mott metal-insulator transition (MIT) at half-filling using dynamical mean-field theory and exact diagonalization technique. The Mott insulator state is changed into metallic state immediately as holes are doped into the system. The latter is expected to be Fermi liquid. The previously found unanalytical structure of MIT no longer exists for doping as small as 2 percent. We compare our results with that obtained from Gutzwiller approximation.

关键词

Hubbard model / metal-insulator transition / doping / Fermi liquid

Key words

Hubbard model / metal-insulator transition / doping / Fermi liquid

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TONG Ning-Hua. Influence of Doping on the Mott Metal-Insulator Transition in Infinite Dimensions[J]. 理论物理通讯, 2002, 37(05): 615-618
TONG Ning-Hua. Influence of Doping on the Mott Metal-Insulator Transition in Infinite Dimensions[J]. Communications in Theoretical Physics, 2002, 37(05): 615-618
中图分类号: 71.30.+h    71.10.Fd    71.27.+a    74.20.Mn   

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