Handbook on the Physics and Chemistry of Rare Earths by L. Eyring, K.A. Gschneidner, G.H. Lander

By L. Eyring, K.A. Gschneidner, G.H. Lander

This quantity of the guide covers numerous themes with 3 chapters facing various lanthanide magnetic fabrics, and 3 person chapters relating equiatomic ternary ytterbium intermetallic compounds, rare-earth polysulfides, and lanthanide natural complexes. the chapters additionally comprise details of the actinides and the comparative lanthanide/actinide behaviors.

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1988). The changes in the magnetoelastic properties have been attributed to magnetostrictive strains which are localised at the interface. These strains lead to the linear variation of the effective magnetostriction with the inverse layer thickness t -l. Such magnetostrictive effects are called "surface magnetostriction" (Szymczak et al. 1988). In addition, it is often claimed that the changes in elastic and magnetoelastic properties of multilayers are due to the presence of interdiffusion layers which are formed at the interfaces.

4. Sm-Co thinfilms. A comparison of the magnetostriction of Sm-Co and Tb-Co systems is shown in fig. 64. The Sm-Co alloy shows a comparable behaviour as the Tb-Co one but with the opposite and a somewhat smaller magnetostriction in absolute value. 03 T. The high-field magnetostrictive susceptibility, however, is smaller in the case of Sin-Co. It is particularly interesting to compare the Stevens factors, aj(O°2), of these two alloys with the observed magnetostriction. 3MPa for the corresponding Sm-Co and Tb-Co films, respectively.

13a,b. It was derived that the films with in-plane anisotropy show high magnetostriction at low fields due to the easy rotation of the spins in the isotropic plane even if the motion of 180°-domain walls does not contribute to magnetostriction. For the films with perpendicular anisotropy, the magnetisation is governed only by rotations into the plane. In contrast to the rotations in the isotropic easy plane, these rotations out of the EMD require larger external fields. 2. (Tb,Dy)-Fe thin films.

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Handbook on the Physics and Chemistry of Rare Earths by L. Eyring, K.A. Gschneidner, G.H. Lander
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