Structure–Property Relation of SrTiO3/LaAlO3 Interfaces
Mark Huijben,Alexander Brinkman,Gertjan Koster,Guus Rijnders,Hans Hilgenkamp,Dave H. A. Blank +5 more
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TLDR
A large variety of transport properties have been observed at the interface between the insulating oxides SrTiO3 and LaAlO3 such as insulation, 2D interface metallicity, 3D bulk metallivities, magnetic scattering, and superconductivity.Abstract:
A large variety of transport properties have been observed at the interface between the insulating oxides SrTiO3 and LaAlO3 such as insulation, 2D interface metallicity, 3D bulk metallicity, magnetic scattering, and superconductivity. The relation between the structure and the properties of the SrTiO3/LaAlO3 interface can be explained in a meaningful way by taking into account the relative contribution of three structural aspects: oxygen vacancies, structural deformations (including cation disorder), and electronic interface reconstruction. The emerging phase diagram is much richer than for related bulk oxides due to the occurrence of interface electronic reconstruction. The observation of this interface phenomenon is a display of recent advances in thin film deposition and characterization techniques, and provides an extension to the range of exceptional electronic properties of complex oxides.read more
Citations
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Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface
Julie A. Bert,Beena Kalisky,Christopher Bell,Minu Kim,Minu Kim,Yasuyuki Hikita,Harold Y. Hwang,Harold Y. Hwang,Kathryn A. Moler +8 more
TL;DR: In this paper, the authors used local imaging of the magnetization and magnetic susceptibility to directly observe a landscape of ferromagnetism, paramagnetic response, and superconductivity.
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Coexistence of magnetic order and two-dimensional superconductivity at LaAlO3/SrTiO3 interfaces
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Interface control of bulk ferroelectric polarization
Pu Yu,Weidong Luo,Weidong Luo,Di Yi,Jinxing Zhang,Marta D. Rossell,Marta D. Rossell,Chan-Ho Yang,Long You,Guneeta Singh-Bhalla,Guneeta Singh-Bhalla,S. Y. Yang,Qing He,Quentin M. Ramasse,Quentin M. Ramasse,Rolf Erni,Rolf Erni,Lane W. Martin,Ying-Hao Chu,Sokrates T. Pantelides,Sokrates T. Pantelides,Stephen J. Pennycook,Stephen J. Pennycook,Ramamoorthy Ramesh,Ramamoorthy Ramesh +24 more
TL;DR: The control of a bulk property, namely ferroelectric polarization, of a heteroepitaxial bilayer by precise atomic-scale interface engineering is demonstrated by exploiting the interfacial valence mismatch to influence the electrostatic potential step across the interface.
References
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Journal ArticleDOI
A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface
TL;DR: A model interface is examined between two insulating perovskite oxides—LaAlO3 and SrTiO3—in which the termination layer at the interface is controlled on an atomic scale, presenting a broad opportunity to tailor low-dimensional charge states by atomically engineered oxide heteroepitaxy.
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Resistance Minimum in Dilute Magnetic Alloys
TL;DR: In this article, the scattering probability of conduction electrons to the second Born approximatism was calculated based on the s-d interaction model for dilute magnetic alloys, and it was shown that J should be negative in alloys which show a resistance minimum.
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Superconducting Interfaces Between Insulating Oxides
Nicolas Reyren,Stefan Thiel,Andrea D. Caviglia,L. Fitting Kourkoutis,German Hammerl,Christoph Richter,Christof W. Schneider,Thilo Kopp,Anna-Sabina Ruetschi,Didier Jaccard,Marc Gabay,David A. Muller,Jean-Marc Triscone,Jochen Mannhart +13 more
TL;DR: This work reports on superconductivity in the electron gas formed at the interface between two insulating dielectric perovskite oxides, LaAlO3 and SrTiO3.
Journal ArticleDOI
Tunable Quasi-Two-Dimensional Electron Gases in Oxide Heterostructures
TL;DR: A large electric-field response of quasi–two-dimensional electron gases generated at interfaces in epitaxial heterostructures grown from insulating oxides is reported, indicating that the conductivity of the electron gases can be modulated through a quantum phase transition from an insulating to a metallic state.
Journal ArticleDOI
Magnetic effects at the interface between non-magnetic oxides
Alexander Brinkman,Mark Huijben,Mark Huijben,M. van Zalk,J. Huijben,Uli Zeitler,Jan C. Maan,W.G. van der Wiel,Guus Rijnders,David H.A. Blank,Hans Hilgenkamp +10 more
TL;DR: In this article, the authors show how magnetism can be induced at the interface between the otherwise non-magnetic insulating perovskites SrTiO3 and LaAlO3.