A model for structural defects in nanomagnets
A model for describing structural pointlike defects in nanoscaled ferromagnetic materials is presented. Its details are explicitly developed whenever it interacts with a vortexlike state comprised in ...
A model for describing structural pointlike defects in nanoscaled ferromagnetic materials is presented. Its details are explicitly developed whenever it interacts with a vortexlike state comprised in ...
Size-dependent polymorphism in HfO2 nanotubes and nanoscale thin films
Many metal oxides exhibit size-dependent phase transitions among multiple polymorphs. In this work, the microstructure and crystallinity of ultrathin HfO2 films and utrathin-wall nanotubes were invest...
Many metal oxides exhibit size-dependent phase transitions among multiple polymorphs. In this work, the microstructure and crystallinity of ultrathin HfO2 films and utrathin-wall nanotubes were invest...
Fabrication of nanocomposite using self-forming core/shell nanoparticles and its magnetic properties at up to gigahertz bands for high-frequency applications
J. Appl. Phys. 106, 084321 (2009); doi:10.1063/1.3251417
Published 28 October 2009
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A nanocomposite with a magnetic loss factor (tan 
=µ![[double-prime]](http://scitation.aip.org/stockgif3/Prime-script.gif)
/µ![[prime]](http://scitation.aip.org/stockgif3/prime-script.gif)
) of less than 1% at up to 1 GHz was synthesized using self-forming core/shell nanoparticles of metal/oxide; these were concentrated to achieve a relative permeability (µ) of more than three. The self-forming core/shell nanoparticles were synthesized by oxidation of a portion of FeCoAl nanoparticles in thermal plasma. An FeCoAl complex oxide shell of approximately 2 nm in thickness was formed on the surface of FeCo nanoparticle, which had approximately 20 nm in diameter. The core/shell nanoparticles were mixed with resin to form bulk material of millimeter-order thickness.
©2009 American Institute of Physics
=µ/µ) of less than 1% at up to 1 GHz was synthesized using self-forming core/shell nanoparticles of metal/oxide; these were concentrated to achieve a relative permeability (µ) of more than three. The self-forming core/shell nanoparticles were synthesized by oxidation of a portion of FeCoAl nanoparticles in thermal plasma. An FeCoAl complex oxide shell of approximately 2 nm in thickness was formed on the surface of FeCo nanoparticle, which had approximately 20 nm in diameter. The core/shell nanoparticles were mixed with resin to form bulk material of millimeter-order thickness.
©2009 American Institute of Physics
| History: | Received 11 July 2009; accepted 20 September 2009; published 28 October 2009 |
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