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LaAlO$_{3}$/SrTiO$_{3}$ heterostructure with polar and non-polar constituents has been shown to exhibit interface metallic conductivity due to fractional charge transfer to the interface. The interface reconstruction by electron…

Materials Science · Physics 2016-08-24 M Karthick Selvan , Prasanta K. Panigrahi

Organic semiconductors offer an unprecedented flexibility to control the electronic state of interfacial electronic systems. Here we present a first step in realizing organic charge transfer interfaces that combine both a large electrical…

Materials Science · Physics 2016-03-01 Yulia Krupskaya , Florian Rückerl , Martin Knupfer , Alberto F. Morpurgo

Performing an analysis within density functional theory, we develop insight into the structural and electronic properties of the oxide heterostructure LaAlO3/SrTiO3. Electrostatic surface effects are decomposed from the internal lattice…

Materials Science · Physics 2015-05-13 U. Schwingenschloegl , C. Schuster

Recent advances in experimental and computational techniques have allowed for an accurate description of the adsorption of ionic liquids on metallic electrodes. It is now well established that they adopt a multi-layered structure, and that…

Materials Science · Physics 2016-03-15 Benjamin Rotenberg , Mathieu Salanne

Charge redistribution at interfaces is crucial for electronic applications of high-Tc superconductors, since the band structure is modified on a local scale. We address the normal-state electronic structure of YBa2Cu3O7 (YBCO) at an…

Superconductivity · Physics 2009-11-13 Udo Schwingenschloegl , Cosima Schuster

Transition metal oxides hold great potential for the development of new device paradigms because of the field-tunable functionalities driven by their strong electronic correlations, combined with their earth abundance and environmental…

With nearly complete spin polarization, the ferromagnetic semiconductor europium monoxide could enable next-generation spintronic devices by providing efficient ohmic spin injection into silicon. Spin injection is greatly affected by the…

Paraelectrical tuning of a charge carrier density as high as 10$^{13}$\,cm$^{-2}$ in the presence of a high electronic carrier mobility on the delicate surfaces of correlated oxides, is a key to the technological breakthrough of a field…

SrRuO3 (SRO), a conducting transition metal oxide, is commonly used for engineering domains in BiFeO3. New oxide devices can be envisioned by integrating SRO with an oxide semiconductor as Nb doped SrTiO3 (Nb:STO). Using a three-terminal…

Strongly Correlated Electrons · Physics 2015-06-15 S. Roy , A. M. Kamerbeek , K. G. Rana , S. Parui , T. Banerjee

Rapidly increasing interest in low-dimensional materials is driven by the emerging requirement to develop nanoscale solid-state devices with novel functional properties that are not available in three-dimensional bulk phases. Among the…

Materials Science · Physics 2024-02-27 Rui-Qi Wang , Tianmin Lei , Yue-Wen Fang

Memristive switching devices, candidates for resistive random access memory technology, have been shown to switch off through a progression of states with quantized conductance and subsequent non-integer conductance (in terms of conductance…

Mesoscale and Nanoscale Physics · Physics 2016-11-23 Xiaoliang Zhong , Ivan Rungger , Peter Zapol , Olle Heinonen

The fabrication of single-carrier organic diodes from a series of sixteen molecular materials is reported. We experimentally demonstrate how the molecular structure affects the film morphology, and how the film morphology influences the…

Materials Science · Physics 2007-05-23 JianChang Li , Kye-Young Kim , Silas C. Blackstock , Greg J. Szulczewski

Twisted oxide membranes represent a promising platform for exploring moire physics and emergent quantum phenomena. However, the presence of amorphous interfacial dead layers in conventional oxide heterostructures impedes coherent coupling…

Materials Science · Physics 2026-01-30 Young-Hoon Kim , Reza Ghanbari , Min-Hyoung Jung , Young-Min Kim , Ruijuan Xu , Miaofang Chi

Oxide heterointerfaces constitute a rich platform for realizing novel functionalities in condensed matter. A key aspect is the strong link between structural and electronic properties, which can be modified by interfacing materials with…

Materials Science · Physics 2021-07-09 T. C. van Thiel , J. Fowlie , C. Autieri , N. Manca , M. Šiškins , D. Afanasiev , S. Gariglio , A. D. Caviglia

In this study, we report the observation of a pseudogap associated with the insulator-metal transition in compositions of Pr$_{1-x}$Sr$_x$MnO$_3$ system with no charge ordering. Our valence band photoemission study shows that the observed…

Strongly Correlated Electrons · Physics 2008-05-06 P. Pal , M. K. Dalai , R. Kundu , M. Chakraborty , B. R. Sekhar , C. Martin

The structural and electronic properties of the LaAlO3/Si(001) interface are determined using state-of-the-art electronic structure calculations. The atomic structure differs from previous proposals, but is reminiscent of La adsorption…

Materials Science · Physics 2016-08-31 Clemens J. Foerst , Karlheinz Schwarz , Peter E. Bloechl

We characterized the interfaces of heterostructures with different stack sequences of La0.7Sr0.3MnO3/BiFeO3 (LSMO/BFO) and BFO/LSMO using TEM revealing sharp and rough interfaces, respectively. Magnetometry and magnetoresistance…

Strongly Correlated Electrons · Physics 2016-03-23 Mehran Vafaee , Simone Finizio , Hakan Deniz , Dietrich Hesse , Hartmut Zabel , Gerhard Jakob , Mathias Kläui

We perform first-principles density functional calculations to elucidate structural, electronic and magnetic properties at the interface of \ce{(0001)Cr2O3-(111)Pt} bilayers. This investigation is motivated by the fact that, despite the…

Materials Science · Physics 2024-05-09 Marlies Reher , Nicola A. Spaldin , Sophie F. Weber

The phase transition behavior and charge storage mechanism of Pr$_2$MgZrO$_6$ (PMM), an oxygen-intercalated pseudocapacitor, were investigated through crystal structure analysis, Raman spectroscopy, ac conductivity spectroscopy, X ray…

Materials Science · Physics 2023-07-26 Moumin Rudra , S. Saha , T. P. Sinha

The electronic structure change of NiS$_{2-x}$Se$_x$ as a function of Se concentration $x$ has been studied by Ni $L$-edge X-ray absorption spectroscopy (XAS). The XAS spectra show distinct features in Ni $L_3$ edge, indicating whether the…

Strongly Correlated Electrons · Physics 2018-02-14 Jinwon Jeong , Kyung Ja Park , En-Jin Cho , Han-Jin Noh , Sung-Baek Kim , Hyeong-Do Kim