Anomalous transmission phase of a Kondo-correlated quantum dot

被引：7
|
作者：
Kang, KC [1 ]
Choi, MS
Lee, S
机构：
[1] Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea
[2] Chonnam Natl Univ, Inst Condensed Matter Theory, Kwangju 500757, South Korea
[3] Korea Univ, Dept Phys, Seoul 136701, South Korea
[4] Elect & Telecommun Res Inst, Basic Res Lab, Taejon 305350, South Korea
来源：
PHYSICAL REVIEW B | 2005年 / 71卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.71.045330
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study phase evolution of transmission through a quantum dot with Kondo correlations. By considering a model that includes nonresonant transmission as well as the Anderson impurity, we explain the unusually large phase evolution of about pi across the resonant peak through the Kondo valley observed in recent experiments. We argue that this anomalous phase evolution is a universal property that can be found in the high-temperature Kondo phase in the presence of the time-reversal symmetry.
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收藏
页数：5
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