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We report the growth and properties of epitaxial MgB2 thin films on (0001) Al2O3 substrates. The MgB2 thin films were prepared by depositing boron films via RF magnetron sputtering, followed by a post-deposition anneal at 850C in magnesium…

We report a study on the thermodynamic stability and structure analysis of the epitaxial BiFeO3 (BFO) thin films grown on YAlO3 (YAO) substrate. First we observe a phase transition of MC-MA-T occurs in thin sample (<60 nm) with an utter…

Materials Science · Physics 2015-06-04 Heng-Jui Liu , Hsiang-Jung Chen , Wen-I Liang , Chen-Wei Liang , Hsin-Yi Lee , Su-Jien Lin , Ying-Hao Chu

Epitaxial Fe(Te,Se) thin films have been grown on various substrates but never been realized on magnetic layers. Here we report the epitaxial growth of four-fold Fe(Te,Se) film on a six-fold antiferromagnetic insulator, MnTe. The…

Phase pure \b{eta}-(AlxGa1-x)2O3 thin films are grown on (001) oriented \b{eta}-Ga2O3 substrates via metalorganic chemical vapor deposition (MOCVD). By systematically tuning the precursor molar flow rates, the epitaxial growth of coherently…

The subtle balance of electronic correlations, crystal field splitting and spin--orbit coupling in layered Ir$^{4+}$ oxides can give rise to novel electronic and magnetic phases. Experimental progress in this field relies on the synthesis…

Materials Science · Physics 2018-08-20 A. Gutiérrez-Llorente , L. Iglesias , B. Rodríguez-González , F. Rivadulla

In this paper we report the observation of curent induced change of resistance of thin metallic oxide films. The resistance changes at a very low current (current density $J \geq 10^{3}$ A/cm$^{2}$). We find that the time dependence…

Disordered Systems and Neural Networks · Physics 2007-05-23 Arindam Ghosh , A. K. Raychaudhuri , R. Sreekala , M. Rajeswari , T. Venkatesan

Epitaxial films have the potential to be used as model systems for fundamental investigations on the martensitic transformation in binary NiTi. In this paper, we discuss growth of binary NiTi thin films on single crystalline MgO substrates.…

We have investigated a method for substituting oxygen with nitrogen in EuO thin films, which is based on molecular beam epitaxy distillation with NO gas as the oxidizer. By varying the NO gas pressure, we produce crystalline, epitaxial…

Materials Science · Physics 2012-05-23 R. Wicks , S. G. Altendorf , C. Caspers , H. Kierspel , R. Sutarto , L. H. Tjeng , A. Damascelli

Orientation, structure and morphology in the early growth stages of CuO films on strontium titanate were studied by synchrotron radiation X-ray diffraction. Nanostructured CuO films were obtained by ex situ heat treatment at 970 K in oxygen…

We report on the systematic characterization of Ba(Fe$_{0.92}$Co$_{0.08}$)$_2$As$_2$ epitaxial thin films on CaF$_2$ substrate in view of their possible use for superconducting electronic applications. By using different and complementary…

Superconductivity · Physics 2016-09-02 D. Daghero , P. Pecchio , F. Laviano , R. S. Gonnelli , F. Kurth , V. Grinenko , K. Iida

We report on the growth of epitaxial ZnO thin films and ZnO based heterostructures on sapphire substrates by laser molecular beam epitaxy (MBE). We first discuss some recent developments in laser-MBE such as flexible ultra-violet laser beam…

Materials Science · Physics 2014-01-14 Matthias Opel , Stephan Geprägs , Matthias Althammer , Thomas Brenninger , Rudolf Gross

Uniform single layer graphene was grown on single-crystal Ir films a few nanometers thick which were prepared by pulsed laser deposition on sapphire wafers. These graphene layers have a single crystallographic orientation and a very low…

We present here experimental results obtained on Bi2FeCrO6 (BFCO) epitaxial films deposited by laser ablation directly on SrTiO3 substrates. It has been theoretically predicted, by Baettig and Spaldin, using first-principles density…

Materials Science · Physics 2009-11-11 Riad Nechache , Catalin Harnagea , Louis-Philippe Carignan , David Menard , Alain Pignolet

Atomically flat, epitaxial, and stoichiometric thin films of the electronically phase separated compound (La$_{0.5}$Pr$_{0.5}$)$_{0.67}$Ca$_{0.33}$MnO$_{3}$ were grown on as-received and treated NdGaO$_{3}$ substrates by fine tuning of…

Materials Science · Physics 2011-09-16 Hyoungjeen Jeen , Rafiya Javed , Amlan Biswas

Two-dimensional crystals are an important class of materials for novel physics, chemistry, and engineering. Germanane (GeH), the germanium-based analogue of graphane (CH), is of particular interest due to its direct band gap and spin-orbit…

We grew a 2 micron thick film of single-phase BiFeO3 on a Si (100) substrate by pulsed laser deposition with a substrate temperature of 575 oC and an oxygen partial pressure of 0.06 mbar. X ray diffraction analysis indicated that the film…

Materials Science · Physics 2025-04-04 Ramachandran Balakrishnan , Ambesh Dixit , Mamidanna Sri Ramachandra Rao

We have selectively grown thin epitaxial GaAs films on Ge substrates with the aid of a 200 nm thin SiO2 mask layer. The selectively grown structures have lateral sizes ranging from 1 um width up to large areas of 1 by 1 mm2. The growth is…

Materials Science · Physics 2007-05-23 G. Brammertz , M. Caymax , Y. Mols , S. Degroote , M. Leys , J. Van Steenbergen , G. Winderickx , G. Borghs , M. Meuris

The first selective growth of graphenic carbon thin films on silicon dioxide is reported. A preliminary e-beam exposure of the substrate is found to strongly affect the process of such films growth. The emphasis is placed on the influence…

Materials Science · Physics 2015-12-24 Maxim Knyazev , Daria Sedlovets , Oleg Trofimov , Arkady Redkin

We have investigated the growth of BaTiO3 thin films deposited on pure and 1% Nb-doped SrTiO3(001) single crystals using atomic oxygen assisted molecular beam epitaxy (AO-MBE) and dedicated Ba and Ti Knudsen cells. Thicknesses up to 30 nm…

Materials Science · Physics 2015-06-12 A. Barbier , C. Mocuta , D. Stanescu , P. Jegou , N. Jedrecy , H. Magnan

Molecular beam epitaxy of Ge (111) thin films on epitaxial-Gd2O3/Si(111) substrates is reported, along with a systematic investigation of the evolution of Ge growth, and structural defects in the grown epilayer. While Ge growth begins in…