Scanning Probe Manipulation of Magnetism at the LaAlO3/SrTiO3 Heterointerface
Nano Letters2012Vol. 12(8), pp. 4055–4059
Citations Over TimeTop 19% of 2012 papers
Beena Kalisky, Julie A. Bert, Christopher Bell, Yanwu Xie, Hiroki Sato, Masayuki Hosoda, Yasuyuki Hikita, Harold Y. Hwang, Kathryn A. Moler
Abstract
Manipulation of magnetism is a longstanding goal of research in exotic materials. In this work, we demonstrate that the small ferromagnetic patches in LaAlO(3)/SrTiO(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(3)/SrTiO(3).
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