Interfacial room temperature magnetism and enhanced magnetocaloric effect in strained La0.66Ca0.34MnO3/BaTiO3 heterostructures

Interfacial room temperature magnetism and enhanced magnetocaloric effect in strained... We present a modification of the magnetization and an electronic reconfiguration due to interfacial coupling between strain relaxed La0.66Ca0.34MnO3 and ultrathin BaTiO3 films using the magnetocaloric effect and photoemission electron microscopy at the Mn, Ti L2,3 edges. The addition of a top BaTiO3 layer leads to strain-induced enhancement of the magnetocaloric effect in La0.66Ca0.34MnO3, due to the structural transitions in BaTiO3, and to room temperature ferromagnetism due to electronic reconfiguration at the interface. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Interfacial room temperature magnetism and enhanced magnetocaloric effect in strained La0.66Ca0.34MnO3/BaTiO3 heterostructures

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Interfacial room temperature magnetism and enhanced magnetocaloric effect in strained La0.66Ca0.34MnO3/BaTiO3 heterostructures

Abstract

We present a modification of the magnetization and an electronic reconfiguration due to interfacial coupling between strain relaxed La0.66Ca0.34MnO3 and ultrathin BaTiO3 films using the magnetocaloric effect and photoemission electron microscopy at the Mn, Ti L2,3 edges. The addition of a top BaTiO3 layer leads to strain-induced enhancement of the magnetocaloric effect in La0.66Ca0.34MnO3, due to the structural transitions in BaTiO3, and to room temperature ferromagnetism due to electronic reconfiguration at the interface.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
1098-0121
eISSN
1550-235X
D.O.I.
10.1103/PhysRevB.96.024419
Publisher site
See Article on Publisher Site

Abstract

We present a modification of the magnetization and an electronic reconfiguration due to interfacial coupling between strain relaxed La0.66Ca0.34MnO3 and ultrathin BaTiO3 films using the magnetocaloric effect and photoemission electron microscopy at the Mn, Ti L2,3 edges. The addition of a top BaTiO3 layer leads to strain-induced enhancement of the magnetocaloric effect in La0.66Ca0.34MnO3, due to the structural transitions in BaTiO3, and to room temperature ferromagnetism due to electronic reconfiguration at the interface.

Journal

Physical Review BAmerican Physical Society (APS)

Published: Jul 13, 2017

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