Using DC-RF magnetron sputtering method, the stress free c- and r-oriented Cr2O3 thin films were grown on c- and /"-cut sapphire substrates, respectively. The c-oriented film grown at 580 °C shows the smoothest surface with a surface average (R_a) of 0.17, although the osurface ...
Electronic structureEquations of stateMagnetic propertiesGeneralized-gradient-approximationAb-initioKnif3Alpha-fe2o3CompressionThe periodic unrestricted Hartree-Fock method has been adopted to calculate the ground-state spin-polarized wave function and total energy of rhombohedral Cr2O3 (corundum-type ...
The crystal structure of chromium sesquioxide, Cr2O3, has been refined from single crystal X-ray diffraction intensity data. Refinement of the scattering factors of Cr and oxygen in the anisotropic stage enabled extension of refinement up to anharmonic terms of the fourth rank tensors (R=0.012...
The structural behavior of Cr2O3 was investigated up to ~70 GPa using single-crystal X-ray diffraction under a quasi-hydrostatic pressure (neon pressure medium) at room temperature. The crystal structure remains rhombohedral with the space group R...c (No. 167) and upon compression the oxygen...
electronic structure of the three systems and show that the application of the $\\mathrm{LDA}+U$ method is essential to obtain realistic structural parameters for ${\\mathrm{Bi}}_{2}\\mathrm{Fe}\\mathrm{Cr}{\\mathrm{O}}_{6... P Baettig,C Ederer,NA Spaldin - 《Physical Review B》...
The Cr2O3 thin films are fabricated on YAlO3(YAO)(0 0 1) substrates etched with 5M and 12M NaOH solutions. After the etching with 12M NaOH solution, the YAO surface showed step-terraces structure with the step height of one unit. The surface morphology of Cr2O3 thin films grown on ...
In this letter, we report the crystal structure manipulation of the exchange bias in epitaxial hcp Cr2O3 films. By epitaxially growing twined (1010) oriented Cr2O3 thin films, of which the c axis and spins of the Cr atoms lie in the film plane, we demonstrate that the exchange bias ...
The crystal structure of natural hydrous rutile from a mantle eclogite nodule has been refined from single-crystal neutron diffraction data collected at 24 K. The chemical composition was 95.52 wt% TiO2, 0.74 wt% Fe2O3, 0.68 wt% Al2O3, 1.16 wt% Cr2O3, 1.86 wt% Nb2O5, and 0.04 wt...
摘要: 30aRE-8 Ionic Conductivity and Crystal Structure on a Bi_2O_3-Ta_2O_5-Nb_2O_5 System Saito T. , Miida R. Meeting abstracts of the Physical Society of Japan 61(1-4), 760, 2006-03-04DOI: 10.11316/jpsgaiyo.61.1.4.0_760_4 年份: 2006 ...
In environmental catalysis the removal or destruction of S-containing molecules is a very important issue nowadays. The interaction of H2S and SO2 with Cr2O3(0001), MgO(100) and CrxMg1-x(100) surfaces (x = 0.05-0.08) was studied using synchrotron-based high-resolution photoemission. X-ray...