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

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名义上

Low Energy Spin Excitations in Chromium Metal, (1,0,0) position, however. Rather, there are further collective excitations, apparently emanating from the TSDW satellites, which correspond to magnetic fluctuations . to the ordered TSDW moments. These branches have a group velocity that is close to that of (1,0,0) longitudinal acoustic (LA) phono

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Provenance

https://doi.org/10.1007/978-3-662-36613-4main walls. CsGeO. is an example of a spin-Peierls system in which the coupling to the lattice causes a alternation of the exchange constants and the ground state becomes a non-magnetic dimer state. The excitations are then long lived but different from spin waves and best described as the triplet e

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琐碎

,Aquae aromaticae — aromatische Wässer,yers have different basal-plane lattice constants. The behaviour is more complex for Ho/Er, Ho/Tm, Er/Y and Er/Lu superlattices which show coherent structures at temperatures where the moments order either in the basal plane or along the c-axis but when both components order the coherence length dec