Scanning Probe Manipulation of Magnetism at the LaAlO3/SrTiO3 Heterointerface

Beena Kalisky*, Julie A. Bert, Christopher Bell, Yanwu Xie, Hiroki K. Sato, Masayuki Hosoda, Yasuyuki Hikita, Harold Y. Hwang, Kathryn A. Moler, Chris Bell

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

33 Citations (Scopus)

Abstract

Manipulation of magnetism is a longstanding goal of research in exotic materials. In this work, we demonstrate that the small ferromagnetic patches in LaAlO3/SrTiO3 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 LaAlO3/SrTiO3.

Original languageEnglish
Pages (from-to)4055-4059
Number of pages5
JournalNano Letters
Volume12
Issue number8
DOIs
Publication statusPublished - Aug 2012

Keywords

  • Heterointerfaces
  • complex oxides
  • magnetism
  • scanning SQUID microscopy
  • ELECTRON-GAS
  • OXIDE HETEROINTERFACE
  • INTERFACE
  • SUPERCONDUCTIVITY
  • HETEROSTRUCTURES
  • FERROMAGNETISM
  • COEXISTENCE

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