Journal ArticleDOI
The Status of the Theories of Magnetic Anisotropy
TLDR
In this paper, the present status of the theories of magnetic anisotropy is reviewed, and a discussion of the origins of magnetic anomalous behavior in some typical cases is given.Abstract:
Microscopic considerations on magnetic anisotropy are described, and through discussion of the origins of magnetic anisotropy in some typical cases, the present status of the theories of magnetic anisotropy is reviewed.read more
Citations
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Magnetism, microstructure, and crystal chemistry of spinel ferrites
TL;DR: In this article, a comprehensive review of the application of magnetic oxides in the electronics industry is presented, with reference to the theoretical background of such materials existing up to the end of 1967, and the relation of magnetic anisotropy energy and the permeability is discussed in terms of applications to transformers, inductors, etc.
Journal ArticleDOI
Magnetocrystalline anisotropy of ferro- and ferrimagnetics
TL;DR: The phenomenology and atomic origins of magnetocrystalline anisotropy are reviewed in this paper, and experimental data are summarized for the spinel ferrites, garnets, metals of the 3d and 4f transition series, and some selected rare earth compounds.
Journal ArticleDOI
Contribution of Fe2+ ions to the magnetocrystalline anisotropy constant K1 of Fe3-xTixO4 (0<x<0.1)
E J Fletcher,W O'Reilly +1 more
TL;DR: The magnetocrystalline anisotropy constant of Fe3O4, Fe2.96Ti0.04O4 and Fe1O4 has been measured between room temperature and the Curie point using the torque method as discussed by the authors.
Journal ArticleDOI
New mechanisms for magnetic anisotropy in localised S-state moment materials
TL;DR: Anisotropic versions of the familiar (RKKY) indirect exchange between localised S-state magnetic moments in metals can arise in a number of ways, viz. (i) from anisotropic s-d interactions such as dipolar coupling and (ii) in higher orders of perturbation theory with the conduction electron spin-orbit interaction as discussed by the authors.
Journal ArticleDOI
Temperature dependence of magnetostriction in Fe80B20 glass
TL;DR: In this paper, the temperature dependence of the magnetostriction of Fe80B20 glass from 12-660 K was investigated and the results suggest that a single-ion mechanism dominates even in crystalline iron-rich alloys.
References
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Journal ArticleDOI
Anisotropic Superexchange Interaction and Weak Ferromagnetism
TL;DR: In this paper, the Anderson theory of superexchange was extended to include spin-orbit coupling and the antisymmetric spin coupling suggested by Dzialoshinski from purely symmetry grounds and the symmetric pseudodipolar interaction were derived.
Journal ArticleDOI
A thermodynamic theory of “weak” ferromagnetism of antiferromagnetics
TL;DR: In this paper, a thermodynamic theory of weak ferromagnetism of α-Fe 2 O 3, MnCO 3 and CoCO 3 is developed on the basis of landau's theory of phase transitions of the second kind.
Journal ArticleDOI
Localized Magnetic States in Metals
TL;DR: In this article, the conditions necessary in metals for the presence or absence of localized moments on solute ions containing inner shell electrons are analyzed, and a self-consistent Hartree-Fock treatment is applied to show that there is a sharp transition between the magnetic state and the nonmagnetic state, depending on the density of states of free electrons, the $s\ensuremath{-}d$ admixture matrix elements, and the Coulomb correlation integral in the $d$ shell.
Journal ArticleDOI
New Approach to the Theory of Superexchange Interactions
TL;DR: In this article, the theory of indirect exchange in poor conductors is examined from a new viewpoint in which the $d$ (or $f$) shell electrons are placed in wave functions assumed to be exact solutions of the problem of a single $d-electron in the presence of the full diamagnetic lattice.
Book
Progress in Low Temperature Physics
TL;DR: In this article, the specific heat of high-T c superconductors was studied. But the authors focused on the scaling of 3 He-4 He mixtures and did not consider the properties of the order parameter collective modes of these mixtures.