Electrical transport in magnetite near the Verwey transition
- 15 July 1979
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 20 (2), 594-600
- https://doi.org/10.1103/physrevb.20.594
Abstract
Thermoelectric power and conductivity measurements were carried out on Ti-doped single crystals of magnetite in the temperature range 70-300 K. The analysis of the measurements supports the model in which the electrical conduction below the Verwey transition takes place on two energy levels separated by a gap of about 0.12 eV. Evidence is found that the mobility of the electrons is thermally activated above as well as below the Verwey transition, indicating phonon-assisted tunneling.Keywords
This publication has 17 references indexed in Scilit:
- Green function theory of electron correlations above and below the Verwey transition in magnetite doped with impuritiesJournal of Physics C: Solid State Physics, 1977
- Electron conduction in magnetite and ferritesPhysica Status Solidi (b), 1977
- Thermoelectric properties of magnetite at the Verwey transitionPhysical Review B, 1976
- Electrical conductivity of Ti substituted manganese and zinc ferritesApplied Physics A, 1976
- Two-phase polaron model of conduction in magnetite-like solidsJournal of Physics C: Solid State Physics, 1975
- Impurity Effects on the Transition Temperature of MagnetiteJournal of the Physics Society Japan, 1972
- Collective Electron Theory of the Metal-Semiconductor Transition in MagnetiteJournal of Applied Physics, 1970
- Double Exchange and the Metal-Nonmetal Transition in MagnetitePhysical Review B, 1969
- Polarons in crystalline and non-crystalline materialsAdvances in Physics, 1969
- The Growing of Single Crystals of MagnetiteThe Journal of Chemical Physics, 1952