Probing the magnetic ground state of the molecular Dysprosium triangle

Details Probing the magnetic ground state of the molecular Dysprosium triangle Probing the magnetic ground state of the molecular Dysprosium triangle

2010-11-04

arxiv.org/abs/1011.1164v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 5 figures, accepted for publication in Phys. Rev. B

Scientific paper

We present zero field muon spin lattice relaxation measurements of a Dysprosium triangle molecular magnet. The local magnetic fields sensed by the implanted muons indicate the coexistence of static and dynamic internal magnetic fields below $T^* ~35$ K. Bulk magnetization and heat capacity measurements show no indication of magnetic ordering below this temperature. We attribute the static fields to the slow relaxation of the magnetization in the ground state of Dy3. The fluctuation time of the dynamic part of the field is estimated to be ~0.55 $\mu$s at low temperatures

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