Domain wall scattering in an interacting one-dimensional electron gas

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.

4 pages, 1 figure

References in corpus (4)

• One-Dimensional Fermi liquids
• Tunneling in One-Dimensional non-Luttinger Electron Liquid
• Conductance Quantization and Magnetoresistance in Magnetic Point Contacts
• Reflection of electrons from a domain wall in magnetic nanojunctions

Cited by in corpus (10)

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• A Circuit Model for Domain Walls in Ferromagnetic Nanowires: Application to Conductance and Spin Transfer Torques
• Transmission of correlated electrons through sharp domain walls in magnetic nanowires: a renormalization group approach
• Electron scattering from domain walls in ferromagnetic Luttinger liquids
• Conducting fixed points for inhomogeneous quantum wires: a conformally invariant boundary theory
• Conductance in inhomogeneous quantum wires: Luttinger liquid predictions and quantum Monte Carlo results
• Spectral properties of one-dimensional spiral spin density wave states
• Local spin transfer torque and magnetoresistance in domain walls with variable width
• Decoherence of charge density waves in beam splitters for interacting quantum wires
• Non-Collinear Ferromagnetic Luttinger Liquids