Elementary excitations in the cyclic molecular nanomagnet Cr8.

نویسندگان

  • O Waldmann
  • T Guidi
  • S Carretta
  • C Mondelli
  • A L Dearden
چکیده

Combining recent and new inelastic neutron scattering data for the molecular cyclic cluster Cr8 produces a deep understanding of the low lying excitations in bipartite antiferromagnetic Heisenberg rings. The existence of the L band, the lowest rotational band, and the E band, essentially spin wave excitations, is confirmed spectroscopically. The different significance of these excitations and their physical nature is clearly established by high-energy and Q-dependence data.

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عنوان ژورنال:
  • Physical review letters

دوره 91 23  شماره 

صفحات  -

تاریخ انتشار 2003