Atomically Resolved Spin-Dependent Tunnelling on the Oxygen-Terminated Fe3O4 (111)

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We employ spin-polarized (SP) STM to study the spin-dependent tunneling between a magnetite (111) sample and an antiferromagnetic tip through a vacuum barrier at room temperature. Atomic scale STM images show significant magnetic contrast corresponding to variations in the local surface states induced by oxygen vacancies. The estimated variations in tunneling magnetoresistance (TMR) of 250% suggest that the spin-transport properties are significantly altered locally by the presence of surface defects.
10 pages, 4 figures

Keywords

Materials Science

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/23530

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0403363
 http://arxiv.org/abs/cond-mat/0403363
 Phys.Rev.Lett. 93, 057201 (2004)
 doi:10.1103/PhysRevLett.93.057201

Collections

arXiv