Titlebook: Dynamical Properties of Unconventional Magnetic Systems; Arne T. Skjeltorp (director),David Sherrington Book 1998 Springer Science+Busines

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Nucleation Theory of Magnetization Switching in Nanoscale Ferromagnets, of nucleation theory are presented, stressing the effects of the particle size on the switching dynamics. The theory is illustrated by Monte Carlo simulations and compared with experiments on single particles.

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Waldbau auf Ökologischer Grundlage in magnetism and give some specific examples of current interest. We review then theoretical results in single domain magnetism of superparamagnetic type and mention recent measurements on antiferro-magnetic grains (ferritin) and their interpretation in terms of macroscopic quantum coherence. Intro

矛盾

,Aquae aromaticae — aromatische Wässer,stic, quantum field theory of a .-component scalar field in . spatial dimensions. A great deal of insight is gained from a simple, exact solution of the long-time dynamics for the . = 1 . = 1 case: this model describes the critical point of the Ising chain in a transverse field, and the dynamics in

英寸

,Aquae aromaticae — aromatische Wässer,. In particular, there is substantial current interest in understanding spin-dependent phenomena in materials systems that involve interfacial and confined geometries such as semiconductor quantum wells [1], metallic magnetic multilayers [2], granular magnetic materials [3], and magnetic semiconduct

讥笑

,Aquae aromaticae — aromatische Wässer,x-ray and neutron-diffraction techniques. Superlattices of Dy/Y, Ho/Y, Ho/Lu, and Ho/Dy show helical structures in which the magnetic moments are aligned in ferromagnetic sheets within each basal plane, but the orientation of the moments changes from one plane to the next. The magnetic order then pr

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,Aquae aromaticae — aromatische Wässer,Emphasis is put on coupled modes occurring in magnetic double layers, i.e. two ferromagnetic films, separated by a nonferromagnetic interlayer. The coupling can be via oscillating dipolar fields caused by the preccessing spins, or via the exchange interaction. It is shown, how the coupled modes can