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

摘要

The influence of a transverse static magnetic field on the magnetichyperthermia properties is studied on a system of large-losses ferromagneticFeCo nanoparticles. The simultaneous measurement of the high-frequencyhysteresis loops and of the temperature rise provides an interesting insightinto the losses and heating mechanisms. A static magnetic field of only 40 mTis enough to cancel the heating properties of the nanoparticles, a resultreproduced using numerical simulations of hysteresis loops. These results castdoubt on the possibility to perform someday magnetic hyperthermia inside amagnetic resonance imaging setup.