A strong ferroelectric ferromagnet created by means of spin–lattice coupling

June Hyuk Lee, Lei Fang, Eftihia Vlahos, Xianglin Ke, Young Woo Jung, Lena Fitting Kourkoutis, Jong-Woo Kim, Philip J. Ryan, Tassilo Heeg, Martin Roeckerath, Veronica Goian, Margitta Bernhagen, Reinhard Uecker, P. Chris Hammel, Karin M. Rabe, Stanislav Kamba, Jürgen Schubert, John W. Freeland, David A. Muller, Craig J. Fennie, Peter Schiffer, Venkatraman Gopalan, Ezekiel Johnston-Halperin and Darrell G. Schlom ()
Additional contact information
June Hyuk Lee: Cornell University
Lei Fang: Ohio State University
Eftihia Vlahos: Pennsylvania State University
Xianglin Ke: Pennsylvania State University
Young Woo Jung: Ohio State University
Lena Fitting Kourkoutis: School of Applied and Engineering Physics, Cornell University
Jong-Woo Kim: Advanced Photon Source, Argonne National Laboratory
Philip J. Ryan: Advanced Photon Source, Argonne National Laboratory
Tassilo Heeg: Cornell University
Martin Roeckerath: Institute of Bio and Nanosystems, JARA-Fundamentals of Future Information Technologies, Research Centre Jülich
Veronica Goian: Institute of Physics ASCR, Na Slovance 2, 182 21 Prague 8, Czech Republic
Margitta Bernhagen: Leibniz Institute for Crystal Growth, Max-Born-Straße 2, D-12489 Berlin, Germany
Reinhard Uecker: Leibniz Institute for Crystal Growth, Max-Born-Straße 2, D-12489 Berlin, Germany
P. Chris Hammel: Ohio State University
Karin M. Rabe: Rutgers University
Stanislav Kamba: Institute of Physics ASCR, Na Slovance 2, 182 21 Prague 8, Czech Republic
Jürgen Schubert: Institute of Bio and Nanosystems, JARA-Fundamentals of Future Information Technologies, Research Centre Jülich
John W. Freeland: Advanced Photon Source, Argonne National Laboratory
David A. Muller: School of Applied and Engineering Physics, Cornell University
Craig J. Fennie: School of Applied and Engineering Physics, Cornell University
Peter Schiffer: Pennsylvania State University
Venkatraman Gopalan: Pennsylvania State University
Ezekiel Johnston-Halperin: Ohio State University
Darrell G. Schlom: Cornell University

Nature, 2010, vol. 466, issue 7309, 954-958

Abstract: Multiferroics made easier Ferroelectric ferromagnets, or multiferroics, are of significant technological interest because they combine the low power and high speed of field-effect electronics with the permanence and routability of voltage-controlled ferromagnetism. Unfortunately, they are rare, and those that do exist have ferroelectric and ferromagnetic properties that are typically weak compared with conventional useful ferroelectrics and ferromagnets. A new route to fabricating multiferroics was recently predicted: in theory, magnetically ordered insulators that are neither ferroelectric nor ferromagnetic — of which there are many — can be turned into ferroelectric multiferroics by strain from the underlying substrate. June Hyuk Lee et al. now realize this route experimentally for EuTiO3. Their demonstration that a single experimental parameter, strain, can simultaneously control multiple order parameters opens up exciting possibilities for creating useful multiferroic materials.

Date: 2010
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DOI: 10.1038/nature09331

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