Electrical resistance, magnetization, and magnetoresistance have been measured as functions of temperature from 50 to 300 K on three ferromagnetic glass ceramics containing different magnetite crystals by preparing conditions and crystal morphology. Magnetite crystals form a percolating network for electrons with weak links at crystal-crystal contact points. All samples exhibit a broadened Verwey transition, peaked at temperatures lower than measured in bulk stoichiometric magnetite. The negative magnetoresistance ratio increases in absolute value with sample cooling from RT down to the Verwey temperature and decreases on further cooling. This behavior indicates that electron transfer between magnetite crystals is achieved through spin-de...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
Abstract We report the temperature dependence of in-phase and quadrature susceptibilit...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
Electrical resistance, magnetization, and magnetoresistance have been measured as functions of temp...
We present magnetoresistance and Hall-effect measurements on single crystal magnetite (Fe3O4) close ...
We investigated the magnetoresistance (MR) of a single crystal of magnetite, Fe3O4. In an effort to ...
Nearly monodisperse spherical magnetite (Fe3O4) nanoparticles are prepared by colloidal chemistry ro...
Nearly monodisperse spherical magnetite (Fe3O4) nanoparticles are prepared by colloidal chemistry ro...
We have measured the electrical resistivity, the magnetoresistance, the Hall effect, and the magneti...
Resistivity, DC Hall effect and transverse magnetoresistance measurements were made on polycrystalli...
Resistivity, DC Hall effect and transverse magnetoresistance measurements were made on polycrystalli...
A detailed magnetoresistance (MR) study of bulk and microflake samples of highly oriented pyrolytic ...
The magnetotransport properties of magnetite films with different microstructures were investigated ...
Studies of the specific heat and simultaneous AC magnetic susceptibility (ρ') and electric resistanc...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
Abstract We report the temperature dependence of in-phase and quadrature susceptibilit...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
Electrical resistance, magnetization, and magnetoresistance have been measured as functions of temp...
We present magnetoresistance and Hall-effect measurements on single crystal magnetite (Fe3O4) close ...
We investigated the magnetoresistance (MR) of a single crystal of magnetite, Fe3O4. In an effort to ...
Nearly monodisperse spherical magnetite (Fe3O4) nanoparticles are prepared by colloidal chemistry ro...
Nearly monodisperse spherical magnetite (Fe3O4) nanoparticles are prepared by colloidal chemistry ro...
We have measured the electrical resistivity, the magnetoresistance, the Hall effect, and the magneti...
Resistivity, DC Hall effect and transverse magnetoresistance measurements were made on polycrystalli...
Resistivity, DC Hall effect and transverse magnetoresistance measurements were made on polycrystalli...
A detailed magnetoresistance (MR) study of bulk and microflake samples of highly oriented pyrolytic ...
The magnetotransport properties of magnetite films with different microstructures were investigated ...
Studies of the specific heat and simultaneous AC magnetic susceptibility (ρ') and electric resistanc...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...
Abstract We report the temperature dependence of in-phase and quadrature susceptibilit...
The temperature dependences of the electrical conductivity, thermopower, and magnetoresistance for s...