Results 241 to 250 of about 121,355 (298)

Magnetic and electronic properties of Fe3O4/PtSe2/Fe3O4 junctions

Materials Today: Proceedings, 2022
Abstract Two-dimensional (2D) materials with single or a few-atomic layers have attracted significant attention from the scientific community due to their transport properties and potential for technological applications. A variety of 2D materials beyond graphene with different bandgaps have been synthesized in recent years.
Olzat Toktarbaiuly, Askar Syrlybekov, Ozhet Mauit, Aliya Kurbanova, Gulnar Sugurbekova, Igor Shvets   +5 more
openaire   +1 more source

Fabrication and characterization of Fe3O4/perlite, Fe3O4/perlite@SiO2, and Fe3O4/perlite@SiO2@sulfanilamide magnetic nanomaterials

Applied Physics A, 2022
Abstract In this study, the fabrication of perlite-supported Fe3O4 (Fe3O4/perlite), SiO2-coated Fe3O4/perlite (Fe3O4/perlite@SiO2), and sulfanilamide-modified Fe3O4/perlite@SiO2 (Fe3O4/perlite@SiO2@sulfanilamide) magnetic nanomaterials and their characterization by various spectroscopic techniques were presented.
Kutluay, Sinan, Sahin, Omer, Ece, Mehmet Sakir   +2 more
openaire   +3 more sources

Magnetoresistance of Fe3O4/Au/Fe3O4 and Fe3O4/Au/Fe spin-valve structures

Journal of Magnetism and Magnetic Materials, 2004
Abstract A detailed study of the in-plane magnetotransport properties of spin valves with one and two Fe 3 O 4 electrodes is presented. Fe 3 O 4 /Au/Fe 3 O 4 spin valves exhibit a clear anisotropic magnetoresistance in small magnetic fields but no giant magnetoresistance (GMR).
Sebastiaan van Dijken, Xavier Fain, Steven M Watts, Kentaro Nakajima, J.M.D Coey   +4 more
openaire   +1 more source

Mechanisms for the Oxidation of Fe3O4

Nature, 1970
WE have published results1 of a study of the kinetics of the oxidation of a sample of Fe3O4 consisting of submicron crystals almost perfectly cubic and almost uniform in size2. In agreement with Egger and W. F.3 and W. F.4,5, it was found that the reaction was single phase topotactic (Fe3O4→Fe3−xO4→γ-Fe2O3).
W, Feitknecht, K J, Gallagher
openaire   +2 more sources

On the magnetic aggregation of Fe3O4 nanoparticles

Computer Methods and Programs in Biomedicine, 2021
Background and objective In-vivo MRI-guided drug delivery concept is a personalized technique towards cancer treatment. A major bottleneck of this method, is the weak magnetic response of nanoparticles. A crucial improvement is the usage of paramagnetic nanoparticles aggregates since they can easier manipulated in human arteries than isolated particles.
Evangelos G. Karvelas, N. K. Lampropoulos, Lefteris Benos, Theodoros E. Karakasidis, Ioannis E. Sarris   +4 more
openaire   +2 more sources

Characterization for strontium titinate/Fe3O4 and TiN/Fe3O4 interfaces

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 2002
The interface formation between different thicknesses of strontium titanate (SrTiO3) or titanium nitride (TiN) with a 2000 Å Fe3O4 film is studied using x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD). Our results show that the deposition of 10–50 Å of TiN results in an immediate and substantial removal of oxygen from ...
A. Lussier, Y. U. Idzerda, S. Stadler, S. B. Ogale, S. R. Shinde, V. Venkatesan   +5 more
openaire   +1 more source

Magnetoresistance effect in Ag–Fe3O4 and Al–Fe3O4 composite films

Journal of Applied Physics, 2003
The Agx–(Fe3O4)1−x and Agx–(Fe3O4)1−x composite films were prepared by dc sputtering on Si(100) substrates. The x-ray diffraction results show that the films contain essentially only the cubic inverse spinal phase from Fe3O4 and face-centered cubic phase from Ag or Al.
Jen-Hwa Hsu, Shang-Yi Chen, Wen-Ming Chang, T. S. Jian, Ching-Ray Chang, Shan-Fan Lee   +5 more
openaire   +1 more source

Fe3O4·C and ZrO2·Fe3O4·C nanostructures: Synthesis and characterization

Russian Journal of General Chemistry, 2015
A procedure for the synthesis of carbon-encapsulated multilayer magnetite and zirconium oxide–magnetite nanoparticles that form porous nanostructures, for use as biocompatible sorbents, is proposed. The properties, composition, dimensions, particle shapes, surface morphology, and magnetic characteristics of the products are studied.
V. N. Postnov, E. B. Naumysheva, M. V. Afonin, D. V. Korolev, I. V. Murin   +4 more
openaire   +1 more source