Chandra, V. Ravi ; Rao, S. ; Sen, D. (2007) A multi-channel fixed point for a Kondo spin coupled to a junction of Luttinger liquids Europhysics Letters, 75 (5). pp. 797-803. ISSN 0295-5075
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Official URL: http://iopscience.iop.org/article/10.1209/epl/i200...
Related URL: http://dx.doi.org/10.1209/epl/i2006-10167-8
Abstract
We study a system of an impurity spin coupled to a junction of several Tomonaga-Luttinger liquids using a renormalization group scheme. For the decoupled S-matrix at the junction, there is a range of Kondo couplings which flow to a multi-channel fixed point for repulsive inter-electron interactions; this is associated with a characteristic temperature dependence of the spin-flip scatterings. If the junction is governed by the Griffiths S-matrix, the Kondo couplings flow to a strong-coupling fixed point where all the wires are decoupled.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to European Physical Society. |
| ID Code: | 109510 |
| Deposited On: | 01 Feb 2018 05:13 |
| Last Modified: | 01 Feb 2018 05:13 |
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