Abstract
We made Monte Carlo simulations of the energy distribution and magnetic moment contributions of surface and core sites in a model particle of spherical shape, intended as a simple representation of hematite colloids. We included exchange interactions between nearest neighbors, plus anisotropy and Zeeman energy terms. Model particles built with origin between lattice sites show a temperature dependence of magnetization consistent with previous measurements and explain the puzzling results of magnetic circular dichroism in samples of nanostructured hematite recently obtained with synchrotron radiation.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
