Formation and anisotropic magnetoresistance of Co/Pt nano-contacts through aluminum oxide barrier

Muftah Al-Mahdawi, Masashi Sahashi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We report on the observation of anisotropic magnetoresistance (AMR) in vertical asymmetric nano-contacts (NCs) made through AlOx nano-oxide layer (NOL) formed by ion-assisted oxidation method in the film stack of Co/AlOx-NOL/Pt. Analysis of NC formation was based on in situ conductive atomic force microscopy and transmission electron microscopy. Depending on the purity of NCs from Al contamination, we observed up to 29% AMR ratio at room temperature.

Original languageEnglish
Article number032405
JournalApplied Physics Letters
Volume104
Issue number3
DOIs
Publication statusPublished - 2014 Jan 20

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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