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Related papers: Growth of Epitaxial MgB2 Thick Films with Columnar…

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Pulsed laser deposition, a non-equilibrium thin-film growth technique, was used to stabilize metastable tetragonal iron sulfide (FeS), the bulk state of which is known as a superconductor with a critical temperature of 4 K. Comprehensive…

Materials Science · Physics 2019-03-22 Kota Hanzawa , Masato Sasase , Hidenori Hiramatsu , Hideo Hosono

We have performed a comparative study of two thin films of magnesium diboride (MgB2) grown by different techniques. The critical current density at different temperatures and magnetic fields was evaluated from magnetisation curves, the…

A complexing molecule electrodeposition technique has been developed for the deposition of low cost, lightweight MgB2 films, for the first time. Different deposition parameters such as bath composition, deposition potential, current…

Superconductivity · Physics 2007-05-23 S. H. Pawar , A. B. Jadhav , P. M. Shirage , D. D. Shivagan

In-situ epitaxial growth of FeSe$_{0.5}$Te$_{0.5}$ thin films is demonstrated on a non-oxide substrate CaF$_2$. Structural analysis reveals that compressive stress is moderately added to 36-nm thick FeSe$_{0.5}$Te$_{0.5}$, which pushes up…

Superconductivity · Physics 2011-05-03 I. Tsukada , M. Hanawa , T. Akiike , F. Nabeshima , Y. Imai , A. Ichinose , S. Komiya , T. Hikage , T. Kawaguchi , H. Ikuta , A. Maeda

This paper reports the nanoscale texture and microstructure of a high-performance NdFeAs(O,F) superconducting thin film grown by molecular beam epitaxy on a textured MgO/Y$_2$O$_3$/Hastelloy substrate. The NdFeAs(O,F) film forms a highly…

We report on metalorganic chemical vapor deposition (MOCVD) growth of controllably Si-doped 4.5 $\mu$m thick $\beta$-Ga$_2$O$_3$ films with electron concentrations in the 10$^{15}$ cm$^{-3}$ range and record-high room temperature Hall…

We report the molecular beam epitaxy of Bi_1-xSb_x thin films ($0 \leq x \leq 1$) on (0001) sapphire substrates using a thin (Bi,Sb)$_2$Te$_3$ buffer layer. Characterization of the films using reflection high energy diffraction, x-ray…

High quality Bi2Te3 and Sb2Te3 topological insulators films were epitaxially grown on GaAs (111) substrate using solid source molecular beam epitaxy. Their growth and behavior on both vicinal and non-vicinal GaAs (111) substrates were…

We have grown VO2 thin films by laser ablation for electronic device applications. In obtaining the thin films of the pure VO2 phase, oxygen partial pressure is a critical parameter because vanadium oxides have several phases with the…

Materials Science · Physics 2007-05-23 B. G. Chae , D. H. Youn , H. T. Kim , S. Y. Maeng , K. Y. Kang

Thin epitaxial films of metals on insulating substrates are essential for many applications, as conducting layers, in magnetic devices or as templates for further growth. In this work, we report on the growth of epitaxial Ru films on…

Materials Science · Physics 2022-01-19 J. E. Prieto , E. M. Trapero , P. Prieto , E. García-Martín , G. D. Soria , P. Galán , J. de la Figuera

GaMnAs/GaAs films were grown via molecular beam epitaxy using both low and high substrate temperatures. The films were investigated using Hall effect and photoluminescence (PL) measurements from 8 to 300 K. The carrier concentrations in the…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 J. F. Xu , S. W. Liu , M. Xiao , P. M. Thibado

Thin films of Co2MnSi have been grown on a-plane sapphire substrates from three elemental targets by dc magnetron co-sputtering. These films are single phase, have a strong (110) texture and a saturation magnetization of 4.95 uB/formula…

Materials Science · Physics 2009-11-10 L. J. Singh , Z. H. Barber , Y. Miyoshi , Y. Bugoslavsky , W. R. Branford , L. F. Cohen

Thin films of gold were deposited on single crystalline CaF2 substrates of (100) and (111) orientation by thermal evaporation. The resulting film structure was analyzed by means of atomic force microscopy in dependence of substrate…

Materials Science · Physics 2007-05-23 Georg Albert , Marco Maccarini , Michael Himmelhaus

Today the study of two-dimensional (2D) materials has become one of the key objectives of materials science. Unlike their three-dimensional counterparts, 2D materials can simultaneously demonstrate unique transport and mechanical properties…

Materials Science · Physics 2021-03-16 Arslan B. Mazitov , Artem R. Oganov

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 have grown MgB2 films in a postannealing process. Precursors were prepared on Al2O3(0001) substrates by codeposition of Mg and MgB2 using pulsed laser deposition technique. Superconducting MgB2 thin films were obtained via an ex situ…

Superconductivity · Physics 2007-05-23 Yi Zhao , Yuemeng Chi , Ruijuan Nie , Furen Wang

MgB2 thin films were deposited on SiC buffered Si substrates by sequential electron beam evaporation of B-Mg bilayer followed by in-situ annealing. The application of a SiC buffer layer enables the maximum annealing temperature of 830 C.…

Superconductivity · Physics 2009-11-11 S. Chromik , J. Huran , V. Strbik , M. Spankova , I. Vavra , W. Bohne , J. Rohrich , E. Strub , P. Kovac , S. Stancek

Epitaxial growth of topological insulator Bi2Se3 thin films on nominally flat and vicinal Si(111) substrates is studied. In order to achieve planner growth front and better quality epifilms, a two-step growth method is adopted for the van…

Materials Science · Physics 2015-05-18 H. D. Li , Z. Y. Wang , X. Kan , X. Guo , H. T. He , Z. Wang , J. N. Wang , T. L. Wong , N. Wang , M. H. Xie

Transition metal dichalcogenides (TMDs) are materials that can exhibit intriguing optical properties like a change of the bandgap from indirect to direct when being thinned down to a monolayer. Well-resolved narrow excitonic resonances can…

(001)-oriented thin films of the three-dimensional Dirac semimetal cadmium arsenide can realize a quantum spin Hall insulator and other kinds of topological physics, all within the flexible architecture of epitaxial heterostructures. Here,…

Materials Science · Physics 2019-04-02 David A. Kealhofer , Honggyu Kim , Timo Schumann , Manik Goyal , Luca Galletti , Susanne Stemmer