High-pressure diffraction study of SrCoO2.88 and La0.33Sr0.67CoO2.85
Creators
- 1. Institute of Physics, Polish Academy of Sciences, Warsaw (Poland)
- 2. Faculty of Chemistry, Catholic University of Lublin, Lublin (Poland)
- 3. Germany's National Research Centre for Geosciences, Potsdam (Germany)
- 4. Physics Department, Northern Illinois University, De Kalb (United States)
Description
The Ln1-xSrxCoO3-δ solid solution oxides crystallise in perovskite-type ABO3 structures with a lanthanide ion (e.g. La3+) or an alkaline earth ion (e.g. Sr2+) at the A site and with a cobalt ion at the B site. These oxides are subject of many studies because of their unique physical properties. It was recently shown that the presence of oxygen vacancies changes the valence state of Co ion. The oxygen content may thus influence the structural, electrical and magnetic properties of these materials. Ln1-xSrxCoO3-δ undergoes phase transitions which are dependent on the kind and substitution amount of the lanthanide ion. The crystal structure may depend on the oxygen content. In this study, the pressure dependence of lattice parameters is determined in situ by X-ray diffraction at a high-pressure (HP) dedicated synchrotron beamline for oxygen deficient samples of SrCoO2.88 and La0.33Sr0.67CoO2.85
Additional details
Identifiers
Publishing Information
- Journal Title
- Synchrotron Radiation in Natural Science
- Journal Volume
- 4
- Journal Issue
- 1-2
- Journal Page Range
- p. 32-33
- ISSN
- 1644-7190
Conference
- Title
- 6. Polish Meeting of Synchrotron Radiation Users (KSUPS)
- Original Conference Title
- 6 Krajowe Sympozjum Uzytkownikow Promieniowania Synchrotronowego
- Dates
- 8-9 Sep 2005
- Place
- Warsaw (Poland)
INIS
- Country of Publication
- Poland
- Country of Input or Organization
- Poland
- INIS RN
- 39003618
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COBALT OXIDES; CRYSTALLOGRAPHY; FERRIMAGNETIC MATERIALS; LANTHANUM OXIDES; OXIDE MINERALS; PEROVSKITES; PRESSURE RANGE MEGA PA 10-100; STRUCTURAL CHEMICAL ANALYSIS; X-RAY DIFFRACTION
- Descriptors DEC
- CHALCOGENIDES; COBALT COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; LANTHANUM COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; MINERALS; OXIDES; OXYGEN COMPOUNDS; PRESSURE RANGE; PRESSURE RANGE MEGA PA; RARE EARTH COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Contract/Grant/Project number
- Grant G1MA-CI-2002-4017; grant 1P 03B 038 27
- Notes
- 15 refs.; 2 figs.
- Funding organization
- European Community (Commission of the European Communities (CEC)); State Committee for Scientific Research (Poland)