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2011•Journal of the Physical Society of JapanRequires access

Kondo Effect of a Vibrating Magnetic Ion

Satoshi Yashiki, Shunsuke Kirino, Kazuo Ueda

Open publisher page 2 citations

Abstract

In the presence of coupling with conduction electrons, an s -orbital magnetic ion vibrating in a cage shows rich variety of Kondo effects. In addition to the conventional s -wave Kondo effect, Yu–Anderson type Kondo and phonon-assisted p -wave Kondo effects are possible. It is shown that the low energy fixed points are classified into either the s -channel Kondo or the p -channel one. The Yu-Anderson type Kondo belongs to the s -channel fixed points. On the boundary between the two different types of fixed points two-channel Kondo effect is generically observed.

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What this paper is about

In the presence of coupling with conduction electrons, an s -orbital magnetic ion vibrating in a cage shows rich variety of Kondo effects. In addition to the conventional s -wave Kondo effect, Yu–Anderson type Kondo and phonon-assisted p -wave Kondo effects are possible. It is shown that the low energy fixed points are classified into either the s -channel Kondo or the p -channel one. The Yu-Anderson type Kondo belongs to the s -channel fixed points. On the boundary between the two different types of fixed points two-channel Kondo effect is generically observed.

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Available abstract

In the presence of coupling with conduction electrons, an s -orbital magnetic ion vibrating in a cage shows rich variety of Kondo effects. In addition to the conventional s -wave Kondo effect, Yu–Anderson type Kondo and phonon-assisted p -wave Kondo effects are possible. It is shown that the low energy fixed points are classified into either the s -channel Kondo or the p -channel one. The Yu-Anderson type Kondo belongs to the s -channel fixed points. On the boundary between the two different types of fixed points two-channel Kondo effect is generically observed.

Key concepts: Kondo effect, Kondo insulator, Condensed matter physics, Physics, Anderson impurity model, Electron, Ion, Thermal conduction

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