Published October 1, 2006
| Version v1
Journal article
Pressure-induced long-range magnetic ordering in cobalt oxide
Creators
- 1. Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, DC 20015 (United States)
- 2. HPCAT, Advanced Photon Source, Building 434E, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 3. Experimental Facilities Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- 4. LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- 5. Institut fuer Mineralogie, Abt. Kristallographie Universitaet Frankfurt Senckenberganlage, 30 D-60054 Frankfurt (Germany)
Description
A long-range magnetic ordering transition in cobalt oxide (CoO) was observed around 2.2 GPa at room temperature using neutron diffraction. The magnetic structure was type-II antiferromagnetic. High-resolution synchrotron x-ray diffraction showed no evidence of a tetragonal lattice distortion in CoO in the magnetically ordered phase. This result indicates that the tetragonal lattice distortion occurring with magnetic ordering in the low-temperature structure of CoO could be associated with cooperative Jahn-Teller effects (orbital ordering), which, however, are decoupled from magnetic ordering under high pressure
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 74
- Journal Issue
- 14
- Journal Page Range
- p. 144101-144101.4
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38026739
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANTIFERROMAGNETIC MATERIALS; ANTIFERROMAGNETISM; COBALT OXIDES; JAHN-TELLER EFFECT; NEUTRON DIFFRACTION; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; TEMPERATURE DEPENDENCE; TETRAGONAL LATTICES; X-RAY DIFFRACTION
- Descriptors DEC
- CHALCOGENIDES; COBALT COMPOUNDS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; MAGNETIC MATERIALS; MAGNETISM; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PRESSURE RANGE; SCATTERING; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- (c) 2006 The American Physical Society