J. Arcas

TL;DR: In this article, the critical exponents of the second-order ferromagnetic-paramagnetic phase transition of (Formula presented) (Forma presented) and (formula presented)-like compounds are obtained, and are taken as the indication of the absence of long-range interactions below the Curie point.

TL;DR: In this article, the effective anisotropy of hard-soft magnetic nanostructures is analyzed using the concept of the exchange correlation length of both phases, and the dependence of coercivity on volume fraction, fluctuation length, temperature and magnetic properties of the components is derived from the degree of magnetic coupling, defined through an effective interphase exchange constant.

TL;DR: In this paper, the evolution of magnetic properties and structure with annealing temperature of glass-coated microwires with composition Fe73.5B22.5 − xSixCu1Nb3 (x = 11.5, 13.5 and 16.5) has been studied for samples with diameter of metallic nucleus ranging from 4 to 22 μm and fixed total diameter of around 26 μm.

TL;DR: In this paper, a magneto-impedance (MI) effect has been experimentally detected and systematically studied in Co/sub 68.5/Si/sub 10/B/sub 15/ glass-coated amorphous microwire 14 /spl mu/m in diameter.

TL;DR: In this paper, the magnetic properties of as-cast and annealed FeSiBCuNb wires and microwires have been reviewed and compared, and the parallel modifications of structure and magnetic behaviour of this kind of samples can be summarised as follows: structural relaxation within the amorphous state (annealing temperature up to around 400°C) leads to a reduction of coercivity, the relative magnetic hardening when annealing at around 460°C is ascribed to the segregation of Cu-enriched clusters as well as of first nanocrystalline nuclei,