Published October 1, 1979
| Version v1
Journal article
Isotope effect on the verwey transition temperature of magnetite
- 1. AN SSSR, Leningrad. Fiziko-Tekhnicheskij Inst.
- 2. Akademie der Wissenschaften der DDR, Dresden. Zentralinstitut fuer Festkoerperphysik und Werkstofforschung
- 3. Karl-Marx-Universitaet, Leipzig (German Democratic Republic). Sektion Physik
Description
Electrical resistance and DTA measurements on single crystals of Fe3O4, in which the oxygen is partially replaced by the stable isotope 18O, show a positive isotope shift in the Verwey transition temperature Tsub(V) of deltaTsub(V) (6.1 +- 0.05) K for the 18O concentration of 43%. This result can be qualitatively explained by a theory which is based on the concept of the condensation of a coupled charge density-phonon mode at Tsub(V) and takes into account both the electron-phonon and the electron-electron interactions. (author)
Additional details
Publishing Information
- Journal Title
- Phys. Status Solidi B
- Journal Volume
- 95
- Journal Issue
- 2
- Series
- Phys. Status Solidi B.
- Journal Page Range
- 491-495
- ISSN
- 0370-1972
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- German Democratic Republic
- INIS RN
- 11523691
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- CHARGE DENSITY; CRYSTAL-PHASE TRANSFORMATIONS; DIFFERENTIAL THERMAL ANALYSIS; ELECTRIC CONDUCTIVITY; ELECTRON-ELECTRON INTERACTIONS; ISOTOPE EFFECTS; LOW TEMPERATURE; MAGNETITE; MONOCRYSTALS; OXYGEN 16; OXYGEN 18; PHONONS; SPECTRAL SHIFT; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE
- Descriptors DEC
- CHALCOGENIDES; CRYSTALS; ELECTRICAL PROPERTIES; EVEN-EVEN NUCLEI; INTERACTIONS; IRON COMPOUNDS; IRON ORES; IRON OXIDES; ISOTOPES; LEPTON-LEPTON INTERACTIONS; LIGHT NUCLEI; MINERALS; NUCLEI; ORES; OXIDES; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; PARTICLE INTERACTIONS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; QUASI PARTICLES; STABLE ISOTOPES; THERMAL ANALYSIS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS