By K. Baberschke, M. Donath, W. Nolting (auth.), Prof. Klaus Baberschke, Prof. Wolfgang Nolting, Prof. Markus Donath (eds.)
Written by way of major specialists within the box of band-ferromagnetism, this e-book is meant to offer a standing file on our figuring out of this advanced and engaging challenge of reliable kingdom physics. glossy advancements are provided and defined in an instructional sort emphasizing the decisive principles and the recent themes of present and destiny examine on band-ferromagnetism. The authors comprise experimentalists and theoreticians engaged on diversified elements of magnetism and applying quite a few thoughts. specifically, they deal with the subsequent 5 primary subject matters: Ground-State houses, Finite-Temperature digital constitution, versions of Band-Ferromagnetism, Low-Dimensional structures, knowing Spectroscopies. The publication can be of profit to scholars and researchers alike.
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Additional info for Band-Ferromagnetism: Ground-State and Finite-Temperature Phenomena
Sample text
In earlier literature of thin film magnetism it has been said that the N´eel (surface) contribution to the MAE is dominant because of symmetry breaking and is the main reason for large MAE in ultrathin films. 4. In nowadays the high precision of surface Anisotropy in Magnetism 33 Fig. 4. Left panel: Schematic drawing of a pseudomorphic grown thin film with 3 contributions of anisotropy energy contributions, the surface term K S1 , the interface term K S2 and the central or volume term K V . Right hand panel: Experimental data for Ni/Cu(001) taken from [28].
This will allow us to probe the interface MCA as proposed in ref. [8]. 2 Magneto-Crystalline Anisotropy and Ground-State Moments The magnetic anisotropy measures the change in ground-state energy with the direction of magnetization. It consists of two contributions due to the dipoledipole interaction between magnetic moments and an electronic contribution, the MCA. The MCA energy, EM CA is given by the spin-orbit coupling in the material. In 3d transition metals the crystalline field is of the order 1-2 eV.
G. [18]). As a consequence, the classification of magnetic anisotropy contribution went a different route than Legendre polynom expansion in crystal field theory. Moreover, as a consequence various units are used in the historical 3 2 part of magnetoelasticity, namely erg/cm and erg/cm , that is to say energy per volume and area, respectively. 1). This newer notation started to be used in surface and thin film magnetism and we strongly advocate in favor of it, since it facilitates the communication with theory and gives an easier insight.