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Author:

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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EI Scopus SCIE

Abstract:

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.

Keyword:

Author Community:

  • [ 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

Reprint Author's Address:

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

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Source :

EUROPEAN PHYSICAL JOURNAL B

ISSN: 1434-6028

Year: 2014

Issue: 8

Volume: 87

1 . 6 0 0

JCR@2022

ESI Discipline: PHYSICS;

ESI HC Threshold:202

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 6

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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