Nanogranular films of composition Ag(100-x)Fex (x: 10, 14, 20, 26, 30 at %) were prepared by dc plasma sputtering deposition. All films exhibit a negative magnetoresistance whose intensity decreases monotonically with temperature, with no apparent saturation up to 50 kOe. A magnetic correlation range Rm is obtained from analysis of the GMR versus M/Ms curves. The role of interparticle correlation is investigated as a function of both Fe concentration and temperature.
Magnetoresistance analysis of nanoscale magnetic correlation in cosputtered Fe(100-x)Ag(x) films
BISERO, Diego;SPIZZO, Federico
2005
Abstract
Nanogranular films of composition Ag(100-x)Fex (x: 10, 14, 20, 26, 30 at %) were prepared by dc plasma sputtering deposition. All films exhibit a negative magnetoresistance whose intensity decreases monotonically with temperature, with no apparent saturation up to 50 kOe. A magnetic correlation range Rm is obtained from analysis of the GMR versus M/Ms curves. The role of interparticle correlation is investigated as a function of both Fe concentration and temperature.File in questo prodotto:
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