Scanning Probe Manipulation of Magnetism at the LaAlO sub(3)/SrTiO sub(3) Heterointerface

Manipulation of magnetism is a longstanding goal of research in exotic materials. In this work, we demonstrate that the small ferromagnetic patches in LaAlO sub(3)/SrTiO sub(3) heterostructures can be dramatically changed by in situ contact of a scanning probe. Our results provide a platform for man...

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Bibliographic Details
Published inNano letters Vol. 12; no. 8; pp. 4055 - 4059-4055-4059
Main Authors Kalisky, Beena, Bert, Julie A, Bell, Christopher, Xie, Yanwu, Sato, Hiroki K, Hosoda, Masayuki, Hikita, Yasuyuki, Hwang, Harold Y, Moler, Kathryn A
Format Journal Article
LanguageEnglish
Published 08.08.2012
Subjects
Contact
Ferromagnetism
Joining
Magnetism
Nanostructure
Platforms
Scanning
Strontium titanates
Superconductivity
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Summary:Manipulation of magnetism is a longstanding goal of research in exotic materials. In this work, we demonstrate that the small ferromagnetic patches in LaAlO sub(3)/SrTiO sub(3) heterostructures can be dramatically changed by in situ contact of a scanning probe. Our results provide a platform for manipulation of small magnets through either a strong magneto-elastic coupling or sensitivity to surface modification. The ability to locally control magnetism is particularly interesting due to the presence of superconductivity with strong spin-orbit coupling in LaAlO sub(3)/SrTiO sub(3).
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ISSN:1530-6984
1530-6992
DOI:10.1021/nl301451e