Pulsed Laser Deposition of Epitaxial Titanium Diboride Thin Films
نویسندگان
چکیده
Epitaxial titanium diboride thin films have been deposited on sapphire substrates by Pulsed Laser Ablation technique. Structural properties of the films have been studied during the growth by Reflection High Energy Electron Diffraction (RHEED) and ex-situ by means of X-ray diffraction techniques; both kinds of measurements indicate a good crystallographic orientation of the TiB 2 film both in plane and along the c axis. A flat surface has been observed by Atomic Force Microscopy imaging. Electrical resistivity at room temperature resulted to be five times higher than the value reported for single crystals. The films resulted to be also very stable at high temperature, which is very promising for using this material as a buffer layer in the growth of magnesium diboride thin films.
منابع مشابه
Dependence of Magnetic Properties on Laser Ablation Conditions for Epitaxial La_{0.6}Sr_{0.4}MnO_{3} Thin Films Grown by Pulsed Laser Deposition
Epitaxial La0:6Sr0:4MnO3 (LSMO) thin films were grown by pulsed laser deposition. Relationships between magnetic properties of LSMO epitaxial thin films and ablation conditions such as ablated spot area and total incident laser energy in a pulsed laser deposition technique were studied. Ablated spot area was controlled by changing the focus lens position and total laser energy. Epitaxial growth...
متن کاملProbing on Growth and Characterizations of SnFe2O4 Epitaxial Thin Films on MgAl2O4 Substrate
*Correspondence: Ram K. Gupta, Department of Chemistry, Pittsburg State University, 1701 South Broadway, Pittsburg, KS-66762, USA e-mail: [email protected] Epitaxial tin ferrite (SnFe2O4) thin films were grown using KrF excimer (248 nm) pulsed laser deposition technique under different growth conditions. Highly epitaxial thin films were obtained at growth temperature of 650°C. The quality a...
متن کاملHomo- and hetero-epitaxial growth of hexagonal and cubic MgxZn1−x O alloy thin films by pulsed laser deposition technique
In this work, we describe the homoand hetero-epitaxial growth of hexagonal and cubic MgxZn1−xO thin films on lattice matched substrates of c-Al2O3, ZnO, MgO and SrTiO3. The crystalline quality, composition and epitaxial nature of the alloy films are obtained by x-ray diffraction and Rutherford backscattering spectroscopy (RBS) techniques. The RBS channeling yields are in the range 3–8% for homo...
متن کاملStructural and electrical properties of c-axis epitaxial homologous SrmÀ3Bi4TimO3m¿3 „mÄ3, 4, 5, and 6... thin films
c-axis epitaxial thin films of Bi-layered homologous Srm23Bi4TimO3m13 (m53, 4, 5, and 6! were fabricated on ~001! SrTiO3 single crystal substrates by pulsed laser deposition, respectively. Microstructures of the films were systematically characterized by x-ray diffraction ~including u–2u scans, rocking curve scans and f scans!, atomic force microscopy, and transmission electron microscope. Epit...
متن کاملCreating high quality Ca:TiO2-B (CaTi5O11) and TiO2-B epitaxial thin films by pulsed laser deposition.
We demonstrate, in great detail, a completely waterless synthesis route to produce highly crystalline epitaxial thin films of TiO2-B and its more stable variant CaTi5O11, using pulsed laser deposition (PLD).
متن کامل