Publication Date:
2015-01-10
Description:
Author(s): E. Wulf, D. Hüvonen, R. Schönemann, H. Kühne, T. Herrmannsdörfer, I. Glavatskyy, S. Gerischer, K. Kiefer, S. Gvasaliya, and A. Zheludev A collaboration of authors from Switzerland, Estonia, and Germany present the results of neutron diffraction experiments, AC magnetometry and specific heat measurements for an organic quantum magnet NiCl 2 ⋅4SC(NH 2 ) 2 (often abbreviated as DTN).For more than a decade, DTN has been considered as a prominent candidate for BEC realization in quantum magnets. However, the presented results suggest that previous interpretations of data were strongly affected by distribution of transition magnetic fields in the samples, and that the critical exponents describing the transition are incompatible with the BEC universality class. [Phys. Rev. B 91, 014406] Published Fri Jan 09, 2015
Keywords:
Magnetism
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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