TITLE

Zone-axis diffraction study of pressure-induced inhomogeneity in single-crystal Fe1-xO

AUTHOR(S)
Yang Ding; Haozhe Liu; Jian Xu; Prewitt, Charles T.; Hemley, Russell J.; Ho-kwang Mao
PUB. DATE
July 2005
SOURCE
Applied Physics Letters;7/25/2005, Vol. 87 Issue 4, p041912
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A zone-axis synchrotron diffraction study of complex and inhomogeneous Fe1-xO thin single crystal under pressure is presented in this letter. Using this method, four phases are observed to coexist in a single crystal of Fe1-xO at 35 GPa in diamond-anvil cells. One phase has cubic symmetry, whereas the other three phases have not been reported previously and can be interpreted as either orthorhombic or monoclinic. The discovery of multiple phases existing in Fe1-xO indicates that structural inhomogeneity of the sample can be induced under high pressure, a result that has important implications for the high P-T behavior of this complex material. Such information is not available using conventional diffraction techniques.
ACCESSION #
17782550

 

Related Articles

  • Three-dimensional silicon inverse photonic quasicrystals for infrared wavelengths. Ledermann, Alexandra; Cademartiri, Ludovico; Hermatschweiler, Martin; Toninelli, Costanza; Ozin, Geoffrey A.; Wiersma, Diederik S.; Wegener, Martin; von Freymann, Georg // Nature Materials;Dec2006, Vol. 5 Issue 12, p942 

    Quasicrystals are a class of lattices characterized by a lack of translational symmetry. Nevertheless, the points of the lattice are deterministically arranged, obeying rotational symmetry. Thus, we expect properties that are different from both crystals and glasses. Indeed, naturally occurring...

  • New Products For Synchrotron Application Based On Novel Surface Processing Developments. Seifert, Andreas // AIP Conference Proceedings;2007, Vol. 879 Issue 1, p459 

    Preserving high beam quality of synchrotron light necessitates the use of aspherical optics. Lack of suitable processes as well as high costs for complex optical components made it often impossible bringing aspheres into play for synchrotron application. Meticulous mathematical analysis of...

  • On the ε-ζ transition of nitrogen. Gregoryanz, Eugene; Sanloup, Chrystèle; Bini, Roberto; Kreutz, Jörg; Jodl, Hans J.; Somayazulu, Maddury; Ho-kwang Mao; Hemley, Russell J. // Journal of Chemical Physics;3/21/2006, Vol. 124 Issue 11, p116102 

    Group theory analysis and synchrotron x-ray diffraction measurements show that the recently proposed crystal structure of ζ-nitrogen is inconsistent with the available experimental data for that phase.

  • Single order x-ray diffraction with binary sinusoidal transmission grating. Cao, L. F.; Förster, E.; Fuhrmann, A.; Wang, C. K.; Kuang, L. Y.; Liu, S. Y.; Ding, Y. K. // Applied Physics Letters;1/29/2007, Vol. 90 Issue 5, p053501 

    All existing x-ray dispersive devices including crystals, multilayers and diffraction gratings generate spectra in multiple orders. In this letter the authors describe how an axis symmetrically distributed sinusoidal-shaped aperture with binary transmittance values can be used to disperse x rays...

  • Low-energy electron diffraction and induced damage in hydrated DNA. Orlando, Thomas M.; Oh, Doogie; Yanfeng Chen; Aleksandrov, Alexandr B. // Journal of Chemical Physics;5/21/2008, Vol. 128 Issue 19, p195102 

    Elastic scattering of 5–30 eV electrons within the B-DNA 5′-CCGGCGCCGG-3′ and A-DNA 5′-CGCGAATTCGCG-3′ DNA sequences is calculated using the separable representation of a free-space electron propagator and a curved wave multiple scattering formalism. The disorder...

  • Optics design and fabrication of 3D electrically switchable hexagonal photonic crystal. Sun, X. H.; Tao, X. M.; Ye, T. J.; Xue, P.; Szeto, Y.-S. // Applied Physics B: Lasers & Optics;Mar2007, Vol. 87 Issue 1, p65 

    We demonstrate a holographic approach for easy and large-area fabrication of 3D photonic crystal (PhC) microstructures in a polymer-dispersed liquid crystal (PDLC) by applying a single top-cut hexagonal prism and a seven-beam interference system. Based on the expected photonic band gap of the...

  • Simulation of Grazing-Incidence Synchrotron White Beam X-ray Topographic Images of Micropipes in 4H-SiC and Determination of Their Dislocation Senses. Yi Chen; Dudley, Michael; Sanchez, Edward K.; Macmillan, Michael F. // Journal of Electronic Materials;May2008, Vol. 37 Issue 5, p713 

    Detailed comparison has been drawn between synchrotron white beam X-ray topographic images of micropipes in 4H-SiC, recorded using pyramidal plane reflections in grazing-incidence geometry, and images simulated using the ray-tracing method. The simulations were carried out with and without the...

  • Development of Protein Crystallography Beamline Using MIRRORCLE-20SX. Yamada, H.; Hanashima, T.; Morita, M.; Yano, Y. // AIP Conference Proceedings;2007, Vol. 902 Issue 1, p26 

    We are developing a laboratory-scale protein structure analysis beamline based on our portable synchrotron MIRRORCLE-20SX, which is a 20 MeV machine. Using the crystal as a target in the central orbit of the synchrotron, we will obtain parametric X-ray, the spatially resolved monochromatic...

  • Structure and magnetic transport properties of Ge doped La(Co,Si)13 intermetallics. Guo, Yongquan; Li, Wei // Applied Physics Letters;1/22/2007, Vol. 90 Issue 4, p042502 

    The crystal structure and the magnetic and electronic transport properties of Ge doped LaCo10.5Si2.5-xGex (x=0–0.3) intermetallics have been investigated using powder x-ray diffraction and magnetic and electrical measurements. According to the x-ray diffraction pattern analysis, Ge as a...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics