• Evaluation of the anisotropy field for fine-particle systems from low-field thermomagnetic curves 

      Geshev, Julian Penkov; Martinez, Lluiz Martinez; Muñoz, Juan Santiago; Schmidt, Joao Edgar; Mikhov, Mihail (1999) [Artigo de periódico]
      A method for evaluating the temperaturedependent magnetic anisotropy field from thermomagnetic curves for Stoner–Wohlfarth-like systems is proposed. It allows the anisotropy parameters of a sample with unknown spontaneous ...
    • Interaction fields evaluation in fine particle systems 

      Geshev, Julian Penkov; Schmidt, Joao Edgar (1997) [Artigo de periódico]
      A computer simulation model for estimation of the interaction fields in fine particle systems has been developed. The method uses the experimental 8Mα(H) plot, constructed from the Fourier description of the initial ...