Dynamical characteristics of the giant magneto-resistance of epitaxial silicide nanowires

T. Kim; Ralph Chamberlin; Peter Bennett; J. P. Bird

doi:10.1088/0957-4484/20/13/135401

Dynamical characteristics of the giant magneto-resistance of epitaxial silicide nanowires

T. Kim, Ralph Chamberlin, Peter Bennett, J. P. Bird

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We study the dynamical properties of a hugely hysteretic magneto-resistance in epitaxially formed silicide nanowires, and propose a model for this remarkable effect in which it is attributed to the collective interactions among interfacial spins associated with dangling bonds. According to our model, the dynamic character of this effect reflects a competitive tendency for the interfacial spins to align in different collective configurations (random, ordered, and multi-domain). Our work thus provides a dramatic demonstration of how the collective interactions among interfacial spins can modify the properties of nonmagnetic nanostructures.

Original language	English (US)
Article number	135401
Journal	Nanotechnology
Volume	20
Issue number	13
DOIs	https://doi.org/10.1088/0957-4484/20/13/135401
State	Published - 2009

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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AB - We study the dynamical properties of a hugely hysteretic magneto-resistance in epitaxially formed silicide nanowires, and propose a model for this remarkable effect in which it is attributed to the collective interactions among interfacial spins associated with dangling bonds. According to our model, the dynamic character of this effect reflects a competitive tendency for the interfacial spins to align in different collective configurations (random, ordered, and multi-domain). Our work thus provides a dramatic demonstration of how the collective interactions among interfacial spins can modify the properties of nonmagnetic nanostructures.

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Dynamical characteristics of the giant magneto-resistance of epitaxial silicide nanowires

Abstract

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