Magnetism at the interface between ferromagnetic and superconducting oxides
Jak Chakhalian,Jak Chakhalian,John W. Freeland,George Srajer,J. Strempfer,Giniyat Khaliullin,Julio C. Cezar,Timothy Charlton,Robert M. Dalgliesh,Christian Bernhard,Georg Cristiani,H.-U. Habermeier,Bernhard Keimer +12 more
TLDR
In this paper, the authors examined superlattices composed of the half-metallic ferromagnet La2/3Ca1/3MnO3 and the high-temperature superconductor YBa2Cu3O7 by absorption spectroscopy with circularly polarized X-rays and by off-specular neutron reflectometry.Abstract:
Carefully controlled interfaces between two materials can give rise to novel physical phenomena and functionalities not exhibited by either of the constituent materials alone. Modern synthesis methods have yielded high-quality heterostructures of oxide materials with competing order parameters. Although magnetic correlations at the interface are expected to be important in determining the macroscopic properties of such systems, a quantitative determination of the interfacial magnetization profile has thus far not been reported. Here we examine superlattices composed of the half-metallic ferromagnet La2/3Ca1/3MnO3 and the high-temperature superconductor YBa2Cu3O7 by absorption spectroscopy with circularly polarized X-rays and by off-specular neutron reflectometry. The resulting data yield microscopic insight into the interplay of spin and orbital degrees of freedom at the interface. The experiments also reveal an extensive rearrangement of the magnetic domain structure at the superconducting transition temperature. This methodology establishes an incisive probe of the interplay between competing electronic order parameters in oxide heterostructures.read more
Citations
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Emergent phenomena at oxide interfaces
TL;DR: Recent technical advances in the atomic-scale synthesis of oxide heterostructures have provided a fertile new ground for creating novel states at their interfaces, with characteristic feature is the reconstruction of the charge, spin and orbital states at interfaces on the nanometre scale.
Journal ArticleDOI
Oxide Interfaces—An Opportunity for Electronics
TL;DR: The state of the art of this emerging field of electronics is traced and some of the challenges and pitfalls that may lie ahead are discussed.
Journal ArticleDOI
Interface-induced phenomena in magnetism
Frances Hellman,Axel Hoffmann,Yaroslav Tserkovnyak,Geoffrey S. D. Beach,Eric E. Fullerton,Chris Leighton,Allan H. MacDonald,Daniel C. Ralph,Dario Arena,Hermann A. Dürr,Peter Fischer,Julie Grollier,Joseph P. Heremans,Tomas Jungwirth,Tomas Jungwirth,Alexey Kimel,B Bert Koopmans,Ilya Krivorotov,Steven J. May,Amanda K. Petford-Long,James M. Rondinelli,Nitin Samarth,Ivan K. Schuller,Ivan K. Schuller,Andrei Slavin,Mark D. Stiles,Oleg Tchernyshyov,André Thiaville,Barry L. Zink +28 more
TL;DR: This article reviews static and dynamic interfacial effects in magnetism, focusing on interfacially-driven magnetic effects and phenomena associated with spin-orbit coupling and intrinsic symmetry breaking at interfaces, identifying the most exciting new scientific results and pointing to promising future research directions.
Journal ArticleDOI
Electrodynamics of correlated electron materials
TL;DR: In this article, the authors review studies of the electromagnetic response of various classes of correlated electron materials including transition metal oxides, organic and molecular conductors, intermetallic compounds with $d$- and $f$-electrons as well as magnetic semiconductors.
Journal ArticleDOI
Reversible electric control of exchange bias in a multiferroic field-effect device
Stephen Wu,Stephen Wu,Shane A. Cybart,Shane A. Cybart,Pu Yu,Pu Yu,Marta D. Rossell,Jinxing Zhang,Ramamoorthy Ramesh,Ramamoorthy Ramesh,Robert C. Dynes,Robert C. Dynes,Robert C. Dynes +12 more
TL;DR: This article can reversibly switch between two distinct exchange-bias states by switching the ferroelectric polarization of BiFeO(3), an important step towards controlling magnetization with electric fields, which may enable a new class of electrically controllable spintronic devices and provide a new basis for producing electrically controlled spin-polarized currents.
References
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