Electronic phase separation at the LaAlO3/SrTiO3 interface
Ariando,X.P. Wang,G. Baskaran,Zhiqi Liu,J. Huijben,Jiabao Yi,Anil Annadi,A. Roy Barman,Andrivo Rusydi,Sankar Dhar,Yuan Ping Feng,Jun Ding,Hans Hilgenkamp,Thirumalai Venkatesan +13 more
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TLDR
An EPS state is reported at the LaAlO(3)/SrTiO (3) interface, where the interface charges are separated into regions of a quasi-two-dimensional electron gas, a ferromagnetic phase, which persists above room temperature, and a diamagnetic/paramagnetic phase below 60 K.Abstract:
Interface effects in complex oxides could have interesting technological applications. Ariando et al. demonstrate electronic phase separation and rich physics at a complex oxide interface between the two non-magnetic insulators LaAlO3 and SrTiO3.read more
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Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4
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Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface
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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
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Coexistence of magnetic order and two-dimensional superconductivity at LaAlO3/SrTiO3 interfaces
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Journal Article
Nanoscale Control of an Interfacial Metal-Insulator Transition at Room Temperature
Cheng Cen,Jeremy Levy,Stefan Thiel,German Hammerl,Christof W. Schneider,Jochen Mannhart,Kristopher E. Anderson,C. Stephen Hellberg +7 more
TL;DR: The creation and erasure of nanoscale conducting regions at the interface between two insulating oxides, LaAlO3 and SrTiO3 are reported.
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.
Journal ArticleDOI
Colossal Magnetoresistant Materials: The Key Role of Phase Separation
TL;DR: In this paper, a large variety of experiments reviewed in detail here contain results compatible with the theoretical predictions, including phase diagrams of manganite models, the stabilization of the charge/orbital/spin ordered half-doped correlated electronics (CE)-states, the importance of the naively small Heisenberg coupling among localized spins, the setup of accurate mean-field approximations, and the existence of a new temperature scale T∗ where clusters start forming above the Curie temperature, the presence of stripes in the system, and many others.
Journal ArticleDOI
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
Percolative phase separation underlies colossal magnetoresistance in mixed-valent manganites
Masatomo Uehara,Masatomo Uehara,Shigeo Mori,Shigeo Mori,Shigeo Mori,Cheng-Hsuan Chen,Cheng-Hsuan Chen,Sang-Wook Cheong,Sang-Wook Cheong,Sang-Wook Cheong +9 more
TL;DR: In this article, it was shown that the magnetoresistive response increases dramatically when the Curie temperature (T C) is reduced, and that the massive magnetoresistance in low-T C systems can be explained by percolative transport through the ferromagnetic domains; this depends sensitively on the relative spin orientation of adjacent magnetoric domains which can be controlled by applied magnetic fields.
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.