Title :
FORC Analysis of Size Effects in Ising-Type Models of Disordered Magnets
Author :
Enachescu, Cristian ; Stancu, Alexandru
Author_Institution :
Fac. of Phys., Al.I. Cuza Univ.
Abstract :
In this paper, we present an original approach on the size effects in cubic lattices, in systems described by the random field Ising model (RFIM) and by the Edwards Anderson spin glass (EASG), based on first-order reversal curves (FORC) analysis and considering zero-temperature dynamics. Size-dependent variation of hysteresis in the two models, reflected in FORC diagrams are evidenced. A comparison with the bidimensional case is considered
Keywords :
Ising model; magnetic anisotropy; magnetic hysteresis; magnetic particles; magnetisation reversal; nanoparticles; particle size; Edwards Anderson spin glass; cubic lattices; disordered magnets; first-order reversal curves analysis; hysteresis; random field Ising model; size effects; zero-temperature dynamics; Boundary conditions; Gaussian distribution; Glass; Hysteresis; Lattices; Magnetic analysis; Magnetic moments; Magnets; Physics; Solid modeling; First-order reversal curves (FORC) method; Ising model; size effects;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.880140
