Non-Collinear Ferromagnetic Luttinger Liquids

Details Non-Collinear Ferromagnetic Luttinger Liquids Non-Collinear Ferromagnetic Luttinger Liquids

2010-09-28

arxiv.org/abs/1009.5509v1

2011 J. Phys.: Conf. Ser. 303 012107

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, submitted to Journal of Physics: Conference Series for JEMS 2010

Scientific paper

10.1088/1742-6596/303/1/012107

The presence of electron-electron interactions in one dimension profoundly changes the properties of a system. The separation of charge and spin degrees of freedom is just one example. We consider what happens when a system consisting of a ferromagnetic region of non-collinearity, i.e. a domain wall, is coupled to interacting electrons in one-dimension (more specifically a Luttinger liquid). The ferromagnetism breaks spin charge separation and the presence of the domain wall introduces a spin dependent scatterer into the problem. The absence of spin charge separation and the effects of the electron correlations results in very different behaviour for the excitations in the system and for spin-transfer-torque effects in this model.

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