Can the spin-orbit interaction break the channel degeneracy (conservation) of the two-channel orbital Kondo problem?

O. Újsághy, A. Zawadowski

Research output: Contribution to journalArticle

Abstract

Two-level systems (TLS) interacting with conduction electrons are possibly described by the two-channel Kondo Hamiltonian. In this case the channel degeneracy is due to the real spin of the electrons. The possibility of breaking that degeneracy (conservation) has interest on his own. In fact, we show that the interaction of the conduction electrons with a spin-orbit scatterer nearby the TLS leads to the breaking of the channel degeneracy (conservation) only in the case of electron-hole symmetry breaking. The generated channel symmetry breaking TLS-electron couplings are, however, too weak to result in any observable effects.

Original languageEnglish
Pages (from-to)187-191
Number of pages5
JournalEuropean Physical Journal B
Volume36
Issue number2
DOIs
Publication statusPublished - Nov 2003

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spin-orbit interactions
conservation
Conservation
Orbits
orbitals
Electrons
conduction electrons
broken symmetry
Hamiltonians
electrons
orbits
scattering
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Can the spin-orbit interaction break the channel degeneracy (conservation) of the two-channel orbital Kondo problem? / Újsághy, O.; Zawadowski, A.

In: European Physical Journal B, Vol. 36, No. 2, 11.2003, p. 187-191.

Research output: Contribution to journalArticle

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