TY - JOUR ID - 3911 TI - Superparamagnetic Behavior of the Magnetic Hysteresis Loop in the Fe2O3@Pt Core-Shell Nanoparticles JO - International Journal of Nanoscience and Nanotechnology JA - IJNN LA - en SN - 1735-7004 AU - Alborzi, Z. AU - Hassanzadeh, A. AU - Golzan, M. M. AD - Department of Physics, Faculty of Science, Urmia, I. R. Iran AD - Department of Chemistry, Faculty of Science, Urmia, I. R. Iran Nanotechnology Research Center of Urmia University, Urmia, I. R. Iran AD - Department of Physics, Faculty of Science, Urmia, I. R. Iran Nanotechnology Research Center of Urmia University, Urmia, I. R. Iran Y1 - 2012 PY - 2012 VL - 8 IS - 2 SP - 93 EP - 98 KW - α-Fe2O3@Pt core-shell nanoparticles KW - Magnetization KW - Superparamagnetic KW - Brillouin function KW - susceptibility DO - N2 - Studies of the magnetization of Fe2O3@Pt nanoparticles at room temperature showed that there is superparamagnetic contribution with high saturation magnetization about 12.35(emu/g), and soft ferromagnetic contribution with narrow coercive field about 58(Oe). In this paper we fitted the hystersis loop of sample with Brillouin function that demonstrating existence of superparamagnetic phase. Total angular momentum quantum number J With computations performance, gave consistent value at high level that could be the reason into existence of spin clusters. Upshot theoretically, magnetic susceptibility of this sample was calculated from the Brillouin function at fields less than 1000(Oe) from 0.1 to 400 K to determine the high-temperature susceptibility. UR - https://www.ijnnonline.net/article_3911.html L1 - https://www.ijnnonline.net/article_3911_8518066af2eba06ebe9780fcbf1a091d.pdf ER -