Results 271 to 280 of about 330,573 (335)

Study of structural, morphological and magnetic properties of Ag substituted cobalt ferrite nanoparticles prepared by honey assisted combustion method and evaluation of their antibacterial activity

Journal of Magnetism and Magnetic Materials, 2019
Pure and Ag substituted cobalt ferrite nanoparticles (NPs) having the composition (1−x)CoFe2O4: xAg (x = 0.0, 0.2) were synthesized by a novel honey assisted combustion method in order to investigate their structural and magnetic properties along with ...
M.K. Satheeshkumar, E. R. Kumar, C. Srinivas, N. Suriyanarayanan, M. Deepty, C. Prajapat, T. Rao, D. Sastry   +7 more
semanticscholar   +1 more source

Structural and magnetic properties of CuFe2O4 ferrite nanoparticles synthesized by cow urine assisted combustion method

Journal of Magnetism and Magnetic Materials, 2019
Copper ferrite (CuFe2O4) nanoparticles were synthesized by sol–gel auto combustion method using cow-urine as a chelating agent. The obtained ferrite nanoparticles are heat treated at different temperatures (450 °C and 750 °C) in order to study their size
M. Satheeshkumar, E. R. Kumar, C. Srinivas, G. Prasad, S. Meena, I. Pradeep, N. Suriyanarayanan, D. Sastry   +7 more
semanticscholar   +1 more source

Effect of rare earth elements on low temperature magnetic properties of Ni and Co-ferrite nanoparticles

Journal of Magnetism and Magnetic Materials, 2019
The Er/Sm-substituted nickel ferrite and Sm-substituted cobalt ferrite nanomaterials were synthesized via citrate-gel autocombustion technique. The diffraction pattern revealed the formation of cubic spinel structure.
Nehru Boda, G. Boda, K. Naidu, M. Srinivas, Khalid Mujasam Batoo, D. Ravinder, A. Reddy   +6 more
semanticscholar   +1 more source

A comprehensive study on thermal stability and magnetic properties of MnZn-ferrite nanoparticles

Journal of Magnetism and Magnetic Materials, 2019
Nanoparticles of MnxZn1-xFe2O4 (0 ≤ x ≤ 1.0) compositions were synthesized via sol-gel process. The structure, thermal stability and magnetic properties of as-prepared and annealed samples have been investigated.
S. Mallesh, V. Srinivas
semanticscholar   +1 more source

Magnetic Properties of Mn3O4 Nanoparticles

AIP Conference Proceedings, 2006
Mn3O4 nanoparticles encapsulated in amorphous SiO2 were produced by the wet chemical method. The obtained precipitates were dried and annealed at temperatures between 673 K and 1273 K in air. The powder X‐ray diffraction pattern revealed Mn3O4 particles with an estimated diameter of 1.2 nm in the sample annealed at 673 K.
Yuko Ichiyanagi, Takahiro Yamada, Yusuke Kanazawa, Tetsuya Uehashi   +3 more
openaire   +1 more source

Magnetic properties of FePt nanoparticles

Journal of Magnetism and Magnetic Materials, 2003
Abstract We have prepared FePt nanoparticles with concentrations in the vicinity of the stoichiometric Fe50Pt50 composition by means of a gas-phase-based process. The preparation technique employed allows to anneal (‘sinter’) the particles in the gas-phase prior to their deposition.
Bernd Rellinghaus, Sonja Stappert, Mehmed Acet, Eberhard F Wassermann   +3 more
openaire   +1 more source

Structural and magnetic properties of ?-Fe2O3 nanoparticles

Applied Organometallic Chemistry, 1998
The magnetic properties of alpha-Fe2O3 nanoparticles of different shapes (spherical, rhombohedral and acicular), prepared as powders by a chemical route, have been investigated. The particle size effect on the Morin transition (T-M = 263 K in the bulk system) have been studied by analyzing the temperature dependence of the zero-field-cooled (ZFC) and ...
Suber L, García Santiago A, Fiorani D, Imperatori P, Testa, A M, Angiolini M, Montone A, Dormann, J L   +9 more
openaire   +2 more sources

Synthesis and magnetic properties of spinel Zn1−xNixFe2O4 (0.0 ≤ x ≤ 1.0) nanoparticles synthesized by microwave combustion method

Journal of Magnetism and Magnetic Materials, 2019
Nanoparticles of Zn 1−x Ni x Fe 2 O 4 (x = 0.0–1.0 in step of 0.2) ferrites are synthesized by microwave combustion method using glycine as a fuel. The structure, site occupancy and ferrimagnetic behavior have been characterized by X-ray diffraction (XRD)
A. El-Fadl, A. M. Hassan, M. Mahmoud, T. Tatarchuk, I. Yaremiy, A. Gismelssed, M. A. Ahmed   +6 more
semanticscholar   +1 more source

Magnetic properties of nanoparticles

2017
This article discusses the magnetic properties of nanoparticles. It first considers magnetic domains and the critical size for single-domain behavior of magnetic nanoparticles before providing an overview of magnetic anisotropy in nanoparticles.
Steen Mørup, Cathrine Frandsen, Mikkel F. Hansen   +2 more
openaire   +1 more source

Anomalous properties of magnetic nanoparticles

Journal of Magnetism and Magnetic Materials, 1999
Abstract Nanoparticles of ferrimagnetic NiFe2O4 and antiferromagnetic NiO exhibit a variety of anomalous magnetic properties. The lower coordination of surface spins is responsible in both cases for the observed behavior. This conclusion is supported by calculations of field-dependent spin distributions in these nanoparticles.
A.E. Berkowitz, R.H. Kodama, Salah A. Makhlouf, F.T. Parker, F.E. Spada, E.J. McNiff, S. Foner   +6 more
openaire   +1 more source