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作者:

Yang, Kai-Hua (Yang, Kai-Hua.) | He, Xian (He, Xian.) | Wang, Huai-Yu (Wang, Huai-Yu.) | Liu, Kai-Di (Liu, Kai-Di.) | Liu, Bei-Yun (Liu, Bei-Yun.)

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摘要:

The electron transport of a system consisting of a Kondo dot and two Luttinger liquid (LL) leads is theoretically studied by use of nonequilibrium Green function approach. In the Kondo regime, the zero bias anomaly appears and the density of states of the dot obeys a power-law scaling at positive energy part with an exponent beta/2 = 1/g - 1, where g reflects the electron interaction in the LL leads. The differential conductance shows a power-law scaling both in bias voltage and in temperature, with the exponent being beta. The power-law temperature dependence of the peak conductance is observed in different temperature regimes. These features are ascribed to the LL correlation in the leads. Our work describes both the zero bias anomaly and power-law scalings within one theoretical frame.

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作者机构:

  • [ 1 ] [Yang, Kai-Hua]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 2 ] [He, Xian]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 3 ] [Liu, Kai-Di]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 4 ] [Liu, Bei-Yun]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China
  • [ 5 ] [Wang, Huai-Yu]Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

通讯作者信息:

  • [Yang, Kai-Hua]Beijing Univ Technol, Coll Appl Sci, Beijing 100122, Peoples R China

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来源 :

EUROPEAN PHYSICAL JOURNAL B

ISSN: 1434-6028

年份: 2014

期: 8

卷: 87

1 . 6 0 0

JCR@2022

ESI学科: PHYSICS;

ESI高被引阀值:202

JCR分区:3

中科院分区:4

被引次数:

WoS核心集被引频次: 6

SCOPUS被引频次: 6

ESI高被引论文在榜: 0 展开所有

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