VEVERKA, P.; POLLERT, Emil; ZÁVETA, K.; VASSEUR, Sébastien; DUGUET, Etienne

doi:10.1088/0957-4484/19/21/215705

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

VEVERKA, P.
Institute of Physics

POLLERT, Emil
Institute of Physics

ZÁVETA, K.
Institute of Physics

Idioma

Article de revue

Este ítem está publicado en

Nanotechnology. 2008, vol. 19, n° 21, p. 215705 (7 p.)

Institute of Physics

Resumen en inglés

Composite nanoparticles with variable ratios of M-type Sr-hexaferrite and maghemite phases were prepared via the sol–gel method employing polyvinylalcohol as the stabilizing agent, followed by thermal treatment at 600 °C for 32–190 min. The measurements in static magnetic field revealed considerable variation of the coercivity and remanence depending on the relative content of the highly magnetically anisotropic Sr-hexaferrite phase. Calorimetric heating experiments were carried out on aqueous gel suspensions under an alternating magnetic field of maximum amplitude Hmax = 15.1–68.4 kA m-1 and frequency ν = 108 kHz. They showed a strong dependence of the heating efficiency on the coercivity and remanence of the composites, with a specific absorption rate (SAR) value ranging from units to tens of W/g(Feferrimagnetic).< Leer menos

Palabras clave en inglés

Hexaferrite

Maghemite

Composite nanoparticle

Hyperthermia

Magnetism

Metadatos

Licencia de uso del documento

Sr-hexaferrite/maghemite composite nanoparticles—possible new mediators for magnetic hyperthermia

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave en inglés

DOI

Orígen

Centros de investigación