Quantum transport in a ferromagnetic nanowire: conductance and MR effect

Cabrera, Guillermo Gerardo; Dartora, Cesar Augusto

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Quantum transport in a ferromagnetic nanowire: conductance and MR effect

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Author(s):	Cabrera, Guillermo Gerardo ; Dartora, Cesar Augusto ^[2] Total Authors: 2
Document type:	Journal article
Source:	Physics Letters A; v. 334, n. 1, p. 46-54, Jan. 2005.
Field of knowledge:	Physical Sciences and Mathematics - Physics
Abstract
In this Letter we analyze the general features of quantum transport in a ferromagnetic nanowire based on a simple model. The local spin distribution, provided by well localized d-electrons, is governed by the Heisenberg-Ising ferromagnetic Hamiltonian while for the s-like conduction electron we have considered the Anderson model. The interaction between local spin and itinerant electrons is given by . The conductance formulae and the giant magnetoresistance effect for a nanowire placed between two ferromagnetic electrodes are obtained. (AU)

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