Scanning probe manipulation of magnetism at the LaAlO 3/ SrTiO 3 heterointerface

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

doi:10.1021/nl301451e

Scanning probe manipulation of magnetism at the LaAlO ₃/ SrTiO ₃ heterointerface

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

Department of Physics - at Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

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.

Original language	English
Pages (from-to)	4055-4059
Number of pages	5
Journal	Nano Letters
Volume	12
Issue number	8
DOIs	https://doi.org/10.1021/nl301451e
State	Published - 8 Aug 2012

Keywords

Heterointerfaces
complex oxides
magnetism
scanning SQUID microscopy

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10.1021/nl301451e

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title = "Scanning probe manipulation of magnetism at the LaAlO 3/ SrTiO 3 heterointerface",

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.",

keywords = "Heterointerfaces, complex oxides, magnetism, scanning SQUID microscopy",

author = "Beena Kalisky and Bert, \{Julie A.\} and Christopher Bell and Yanwu Xie and Sato, \{Hiroki K.\} and Masayuki Hosoda and Yasuyuki Hikita and Hwang, \{Harold Y.\} and Moler, \{Kathryn A.\}",

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doi = "10.1021/nl301451e",

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AU - Kalisky, Beena

AU - Bert, Julie A.

AU - Bell, Christopher

AU - Xie, Yanwu

AU - Sato, Hiroki K.

AU - Hosoda, Masayuki

AU - Hikita, Yasuyuki

AU - Hwang, Harold Y.

AU - Moler, Kathryn A.

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N2 - 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.

AB - 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.

KW - Heterointerfaces

KW - complex oxides

KW - magnetism

KW - scanning SQUID microscopy

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JO - Nano Letters

JF - Nano Letters

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Scanning probe manipulation of magnetism at the LaAlO ₃/ SrTiO ₃ heterointerface

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Keywords

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