Influence of a transverse static magnetic field on the magnetic hyperthermia properties and high-frequency hysteresis loops of ferromagnetic FeCo nanoparticles

Autor: Mehdaoui, B., Carrey, J., Stadler, M., Cornejo, A., Nayral, C., Delpech, F., Chaudret, B., Respaud, M.
Rok vydání: 2012
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1063/1.3681361
Popis: The influence of a transverse static magnetic field on the magnetic hyperthermia properties is studied on a system of large-losses ferromagnetic FeCo nanoparticles. The simultaneous measurement of the high-frequency hysteresis loops and of the temperature rise provides an interesting insight into the losses and heating mechanisms. A static magnetic field of only 40 mT is enough to cancel the heating properties of the nanoparticles, a result reproduced using numerical simulations of hysteresis loops. These results cast doubt on the possibility to perform someday magnetic hyperthermia inside a magnetic resonance imaging setup.
Comment: 6 pages, 3 figures
Databáze: arXiv