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The response of oxide thin films to polar discontinuities at interfaces and surfaces has generated an enormous activity due to the variety of interesting effects it gives rise to. A case in point is the discovery of the electron gas at the…

Mesoscale and Nanoscale Physics · Physics 2014-03-21 N C Bristowe , Philippe Ghosez , P B Littlewood , Emilio Artacho

We discuss the environmental instability of amorphous indium oxide (InOx)-based thin-film transistors (TFTs) in terms of the excess oxygen in the semiconductor films. A comparison between amorphous InOx doped with low and high…

Materials Science · Physics 2015-05-14 Shinya Aikawa , Nobuhiko Mitoma , Takio Kizu , Toshihide Nabatame , Kazuhito Tsukagoshi

We investigated the reversible resistive switching of poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) thin films sandwiched between Al electrodes. The J-V sweep curve showed a hysteretic behavior which depends on the…

Materials Science · Physics 2015-05-14 Hu Young Jeong , Jong Yun Kim , Tae Hyun Yoon , Sung-Yool Choi

The structure of thin terminated Bi(1 1 1) films of approximately 1 nm thickness is investigated from first principles. Our density functional theory calculations show that covalent bonds to the surface can change the orientation of the…

Materials Science · Physics 2019-07-16 Christian König , Stephen Fahy , James C. Greer

We report on "graphene-like" mechanical exfoliation of thin films of titanium ditelluride and investigation of their electronic properties. The exfoliated crystalline TiTe2 films were used as the channel layers in the back-gated…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 J. Khan , C. M. Nolen , D. Teweldebrhan , D. Wickramaratne , R. K. Lake , A. A. Balandin

Heteroepitaxial growth of transition-metal oxide films on the open (111) surface of SrTiO3 results in significant restructuring due to the polar mismatch. Monitoring the structural and composition on an atomic scale of LaNiO3/SrTiO3 (111)…

Materials Science · Physics 2017-04-26 Mohammad Saghayezhian , Zhen Wang , Hangwen Guo , Yimei Zhu , E. W. Plummer , Jiandi Zhang

Thin film lithium niobate is of great recent interest and an understanding of periodically poled thin-films is crucial for both fundamental physics and device developments. Second-harmonic (SH) microscopy allows for the non-invasive…

Applied Physics · Physics 2019-10-23 Michael Ruesing , Jie Zhao , Shayan Mookherjea

We consider both experimentally and analytically the transient oscillatory process that arises when a rapid change in voltage is applied to a $Ba_xSr_{1-x}TiO_3$ ferroelectric thin film deposited on an $Mg0$ substrate. High frequency…

Materials Science · Physics 2015-05-19 J. -G. Caputo , A. I. Maimistov , E. D. Mishina , E. V. Kazantseva , V. M. Mukhortov

The observation of ferroelectric, ferromagnetic and ferroelastic phases in thin films of binary oxides attract the broad interest of scientists and engineers. However, the theoretical consideration of observed behaviour physical nature was…

Materials Science · Physics 2020-12-08 Maya Glinchuk , Anna Morozovska , Lesya Yurchenko

Despite widespread interest in the phase-change applications of vanadium dioxide (VO$_2$), the fabrication of high-quality VO$_2$ thin films with elevated transition temperatures (TIMT) and high Insulator-Metal-Transition resistance…

Materials Science · Physics 2024-01-01 Achintya Dutta , Ashok P , Amit Verma

Nanoscale electrostatic control of oxide interfaces enables physical phenomena and exotic functionalities beyond the realm of the bulk material. In technologically-relevant ferroelectric thin films, the interface-mediated polarization…

We investigated electroforming-free bipolar resistive switching behavior in Pt/Ti/Al2O3/Al tunnel junctions where the Al2O3 tunnel barrier was naturally formed on Al in air. Various compliance current values for the junction's set switching…

Materials Science · Physics 2015-05-27 Doo Seok Jeong , Byung-ki Cheong , Hermann Kohlstedt

We used oxygen ion irradiation to transfer the nanoscale pattern of a porous alumina mask into high- superconducting thin films. This causes a nanoscale spatial modulation of superconductivity and strongly affects the magneto-transport…

This study reports on the optical, structural, and dielectric properties of aluminum tantalum oxide (Al$_x$Ta$_y$O$_z$) thin films deposited at low temperature on silicon and steel substrates by pulsed direct current reactive magnetron…

Materials Science · Physics 2026-02-20 Pavel Ondračka , Richard Drevet , Daniel Franta , Jan Dvořák , Ivan Ohlídal , Petr Vašina

Titanium Oxynitride (TiOxNy) thin films are fabricated using reactive magnetron sputtering. The mechanism of their growth formation is explained and their optical properties are presented. The films grown when the level of residual Oxygen…

Low temperature growth Pr0.7Ca0.3MnO3 (PCMO) thin film showed high performance in electric field induced resistance switching (RS). To understand the micro-mechanism of RS in Metal/PCMO/Metal devices, structure evolution of PCMO under…

Mesoscale and Nanoscale Physics · Physics 2012-07-17 Zhaoliang Liao , Peng Gao , Xuedong Bai , Dongmin Chen

In this paper I report, exchange bias effect in a bilayer thin film of amorphous zinc ferrite and nanocrystalline gallium ferrite. The amorphous zinc ferrite layer was deposited at room temperature (Ts = RT) on top of a nanocrystalline…

Materials Science · Physics 2019-11-18 Himadri Roy Dakua

Superconductivity realized in bilayer nickelate thin films enables direct spectroscopic and transport studies at ambient pressure. However, a persistent two-step resistive transition remains a major barrier to achieving optimal…

Superconductivity · Physics 2026-04-10 Ziao Han , Lifen Xiang , X. J. Zhou , Zhihai Zhu

TiO$_{2-\delta}$ films were deposited on (100) Lanthanum aluminates LaAlO$_{3}$ substrates at a very low oxygen chamber pressure $P\approx 0.3$ mtorr employing a pulsed laser ablation deposition technique. In previous work, it was…

Other Condensed Matter · Physics 2009-11-13 Soack Dae Yoon , Vincent G. Harris , Carmine Vittoria , Allan Widom

The ability to control porosity in oxide thin films is one of the key factors that determine their properties. Despite the abundance of dry processes for the synthesis of oxide porous layers, the high porosity range is typically achieved by…