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Type: Artigo de periódico
Title: Domain-wall scattering in an interacting one-dimensional electron gas
Author: Pereira, RG
Miranda, E
Abstract: We study the transport in a Luttinger liquid coupled to a magnetic chain containing a Bloch domain wall. We compute the leading correction to the adiabatic limit of a long domain wall, which causes no scattering. We show that the problem is reminiscent of an impurity in a Luttinger liquid, but with a different dependence on the interaction parameters due to spin-flip scattering. For repulsive interactions, we find that the domain-wall resistance diverges with decreasing temperature. This may be relevant for the design of one-dimensional systems with large magnetoresistance at low temperatures.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.69.140402
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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