Transmission of correlated electrons through sharp domain walls in magnetic nanowires: a renormalization group approach

Abstract

The transmission of correlated electrons through a domain wall in a ferromagnetic one dimensional system is studied theoretically in the limit of a domain wall width smaller or comparable to the electron Fermi wavelength. The domain wall gives rise to both potential and spin dependent scattering of the charge carriers. Using a poor man's renormalization group approach for the electron-electron interactions, we obtain the low temperature behavior of the reflection and transmission coefficients. The results show that the low-temperature conductance is governed by the electron correlations, which may suppress charge transport without suppressing spin current. The results may account for a huge magnetoresistance associated with a domain wall in ballistic nanocontacs.

arXiv comment13 pages, 6 figures

References in corpus (20)

• Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
• Bosonization and Strongly Correlated Systems
• Real-space observation of current-driven domain wall motion in submicron magnetic wires
• Resistivity due to a Domain Wall in Ferromagnetic Metal
• Geometrically constrained magnetic wall
• Negative Domain Wall Contribution to the Resistivity of Microfabricated Fe Wires
• Tunneling in One-Dimensional non-Luttinger Electron Liquid
• Very large magnetoresistance in lateral ferromagnetic (Ga,Mn)As wires with nanoconstrictions
• Negative Domain Wall Resistance in Ferromagnets
• Ballistic electron transport through magnetic domain walls
• Observation of domain wall resistivity in $\mathrm{SrRu}{\mathrm{O}}_3$
• Magnetization reversal by injection and transfer of spin: experiments and theory
• Ballistic versus diffusive magnetoresistance of a magnetic point contact
• Reflection of electrons from a domain wall in magnetic nanojunctions
• Multivalued dependence of the magnetoresistance on the quantized conductance in nanosize magnetic contacts
• Magnetoresistance of a semiconducting magnetic wire with domain wall
• Electron-electron interactions in a one-dimensional quantum wire spin filter
• Renormalization of impurity scattering in one-dimensional interacting electron systems in magnetic field
• Tunneling of correlated electrons in ultra high magnetic field
• Domain wall scattering in an interacting one-dimensional electron gas

Cited by in corpus (11)

• Current-induced interactions of multiple domain walls in magnetic quantum wires
• Current-induced non-adiabatic spin torques and domain wall motion with spin relaxation in a ferromagnetic metallic wire
• Electron scattering from domain walls in ferromagnetic Luttinger liquids
• Magnetic dynamics driven by the spin-current generated via spin-Seebeck effect
• Role of a spin-flip scatterer in a magnetized Luttinger liquid
• Transport Properties of an Interacting Quantum Dot with a Non-Uniform Magnetization
• Role of non-collinear magnetization: from ferromagnetic nano wires to quantum rings
• Negative differential magneto-resistance in ferromagnetic wires with domain walls
• Dynamics of the polarization of a pinned domain wall in a magnetic nanowire
• Local spin transfer torque and magnetoresistance in domain walls with variable width
• Non-Collinear Ferromagnetic Luttinger Liquids