The DC transport properties of and the radio-frequency (RF) wave absorption (at 2.525 MHz) in a sample of La0.67Sr0.33MnO3 prepared by floating-zone method are measured. The Curie temperature, Tc, of the sample is about 374 K. Giant temperature and magnetic-field variations in RF absorption are found in the vicinity of Tc. Relative change of the RF absorption in magnetic field (magnetoabsorptio...

background: magnetic nanoparticles in a variable magnetic field are able to produce heat. this heat (42-45°c) has more selective effect on fast dividing cancer cells than normal tissues. methods: in this work magnetite nanoparticles have been prepared via co-precipitation and phase identification was performed by powder x-ray diffraction (xrd). magnetic parameters of the prepared nanoparticles ...