Dynamical spin correlations of a frustrated Cr9 antiferromagnetic ring
Molecular nanomagnets characterized by competing exchange interactions provide a new way for exploring some fundamental issues of frustration as their modeling is simpler than that of bulk magnetic materials. Their small size enhances quantum effects with respect to bulk systems, and the resulting magnetic correlations and the spin dynamics are particularly complex. In fact, the magnetic energy spectrum has a structure which cannot be rationalized in terms of simple paradigms (like giant spins or rotational bands). We intend to extract dynamical spin correlations in a single-crystal of the frustrated odd-membered Cr9 AF ring by exploiting the position-sensitive detectors of IN5. We expect the results to reveal the effects of frustration on the dynamics with a very high degree of discernment.
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SANTINI Paolo; AMORETTI Giuseppe; ANSBRO Simon; BAKER Michael; CARRETTA Stefano; GARLATTI Elena; GUIDI Tatiana; MUTKA Hannu; TIMCO Grigore and WINPENNY Richard E.P.. (2014). Dynamical spin correlations of a frustrated Cr9 antiferromagnetic ring. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-04-465
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