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The effects of 200-MeV Ag^{+15} ion irradiation on the optical properties of TiO_{2} and SnO_{2} thin films prepared by using the RF magnetron sputtering technique were investigated. These films were characterized by using UV-vis…

We report the physical properties of Co$_2$CrAl Heusler alloy epitaxial thin films grown on single crystalline MgO(001) substrate using pulsed laser deposition technique. The x-ray diffraction pattern in $\theta$-2$\theta$ mode showed the…

材料科学 · 物理学 2022-08-10 Guru Dutt Gupt , Rajendra S. Dhaka

We have grown thin films of the Heusler compound Co_2FeSi by RF magnetron sputtering. On (100)-oriented MgO substrates we find fully epitaxial (100)-oriented and L2_1 ordered growth. On Al_2O_3 (11-20) substrates, the film growth is…

We report a comparative study of the properties of very thin films of La$_{0.67}$Ca$_{0.33}$MnO$_3$ grown epitaxially under strain on flat SrTiO$_3$ (STO), lattice matched on NdGaO$_3$ (NGO), and strained on $1^{\circ}$-miscut STO. We use…

介观与纳米尺度物理 · 物理学 2011-02-22 C. Beekman , J. Aarts , M. Porcu , H. Zandbergen

The damping of the oscillations of a small permanent magnet (spherical shape, radius 0.1 mm) levitating between two parallel YBCO surfaces is measured as a function of oscillation amplitude and temperature. The losses in the samples…

超导电性 · 物理学 2007-05-23 R. Grosser , P. Hoecherl , A. Martin , M. Niemetz , W. Schoepe

Compression-induced buckling instability of metal thin films on a compliant base result in surface wrinkles. A stiff thin film, perfectly bonded to an infinitely deep pre-stretched dielectric elastomer (DE) substrate, is considered. Linear…

计算物理 · 物理学 2021-08-24 Abhishek Ghosh

We report on fully epitaxial FeSe0.5Te0.5 (FST) thin films with high-quality grown on CaF2 (00l) substrate at a low temperature of 300{\deg}C by pulsed laser deposition. The transport Jc of thin films is up to 1.36 MA/cm2 in self-field and…

超导电性 · 物理学 2015-07-03 Pusheng Yuan , Zhongtang Xu , Haitao Zhang , Dongliang Wang , Yanwei Ma , Ming Zhang , Jianqi Li

We have carried out non-linear microwave (8 GHz) surface impedance measurements of three YBaCuO thin films in dc magnetic fields $H_{dc}$ (parallel to c axis) up to 12 mT using a coplanar resonator technique. In zero dc field the three…

We have measured the low-field magnetoresistances (MRs) of a series of Sn-doped indium oxide thick films in the temperature $T$ range 4--35 K. The electron dephasing rate $1/\tau_{\varphi}$ as a function of $T$ for each film was extracted…

介观与纳米尺度物理 · 物理学 2013-09-10 Yu-Jie Zhang , Zhi-Qing Li , Juhn-Jong Lin

FeSe0.5Te0.5 thin films were grown by pulsed laser deposition on CaF2, LaAlO3 and MgO substrates and structurally and electro-magnetically characterized in order to study the influence of the substrate on their transport properties. The…

ZrO2:10%SiO2 thinfilms have been deposited on fused silica substrate by reactive electron beam co-evaporation technique at different oxygen partial pressure. The structural analysis shows tetragonal phase with residual tensile stress in the…

材料科学 · 物理学 2020-09-22 S. Jena , R. B. Tokas , S. Thakur , N. K. Sahoo

The presumably unconventional superconductor Beta-FeSe was deposited by radio frequency sputtering and molecular beam epitaxy (MBE) from two elementary sources. Superconducting thin films were grown in (001)-orientation on MgO(100) and…

超导电性 · 物理学 2015-05-12 Eike Venzmer , Alexander Kronenberg , Janek Maletz , Martin Jourdan

Magnetic field-driven domain wall motion in an ultrathin Pt/Co(0.45nm)/Pt ferromagnetic film with perpendicular anisotropy is studied over a wide temperature range. Three different pinning dependent dynamical regimes are clearly identified:…

无序系统与神经网络 · 物理学 2014-07-30 J. Gorchon , S. Bustingorry , J. Ferré , V. Jeudy , A. B. Kolton , T. Giamarchi

Stabilized FeSe thin films in ambient pressure with tunable superconductivity would be a promising candidate for superconducting electronic devices yet its superconducting transition temperature (Tc) is below 10 K in bulk materials. By…

Multifunctional materials composed of ultrathin magnetic films with perpendicular magnetic anisotropy combined with ferroelectric substrates represent a new approach toward low power, fast, high density spintronics. Here we demonstrate…

介观与纳米尺度物理 · 物理学 2016-01-08 Daniel B. Gopman , Cindi L. Dennis , Andrew P. Chen , Yury L. Iunin , Peter Finkel , Margo Staruch , Robert D. Shull

We studied flux pinning in exfoliated FeTe$_{0.6}$Se$_{0.4}$ thin-film devices with a thickness $d$ from 30 to 150 nm by measuring the critical current density $J_{\mathrm{c}}$. In bulk FeTe$_{0.6}$Se$_{0.4}$, the flux pinning has been…

介观与纳米尺度物理 · 物理学 2021-10-22 Ryoya Nakamura , Masashi Tokuda , Mori Watanabe , Masamichi Nakajima , Kensuke Kobayashi , Yasuhiro Niimi

Quantitative analyses of x-ray scattering from thin films of Ho and Dy metal at the M_5 resonances result in values of the optical constants and the magnetic scattering lengths f_m, with f_m as large as 200 r_0. The observation of first-…

其他凝聚态物理 · 物理学 2007-05-23 H. Ott , C. Schuessler-Langeheine , E. Schierle , A. Yu. Grigoriev , V. Leiner , H. Zabel , G. Kaindl , E. Weschke

We present a comprehensive study of the crystal structure of the thin-film, ferromagnetic topological insulator (Bi, Sb)$_{2-x}$V$_x$Te$_3$. The dissipationless quantum anomalous Hall edge states it manifests are of particular interest for…

We report a comprehensive study of the complex AC conductance of amorphous superconducting InO$_x$ thin films. Using a novel broadband microwave `Corbino' spectrometer we measure the explicit frequency dependency of the complex conductance…

超导电性 · 物理学 2015-05-20 Wei Liu , Minsoo Kim , G. Sambandamurthy , N. P. Armitage

Structural and magnetic properties of Mn5(SixGe1-x)3 thin films were investigated. Ferromagnetic Mn5Ge3 and anti-ferromagnetic Mn5Si3 thin films have been synthesized and characterized as these compounds exhibit interesting features for the…

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