On the Temperature Dependence of Magnetic Relaxation in Mn12‐Acetate Around the Blocking Temperature

Reissner, Michael and Beiter, Johannes and Pajić, Damir and Zadro, Krešo and Hilscher, Gerfried and Steiner, Walter (2006) On the Temperature Dependence of Magnetic Relaxation in Mn12‐Acetate Around the Blocking Temperature. In: 24th International Conference on Low Temperature Physics, 10-17.8.2005., Orlando, Florida (USA).

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Abstract

Magnetic relaxation measurements at different temperatures below the blocking temperature were performed on Mn12‐acetate in fields corresponding to the first (zero) resonance. Three temperature regimes could be identified: Below 2.0 K (2.3 K) a square root time dependence is present, indicating thermally assisted tunneling. Up to 2.1 K. (2.6 K.) pure exponential behavior is found, typical for thermally activated tunneling. Just below T B a new regime with strongly non exponential behavior could be identified.

Item Type: Conference or Workshop Item (Poster)
Keywords: molecular magnets, magnetic relaxation
Date: 2006
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Divisions: Faculty of Science > Department of Physics
Publisher: American Institute of Physics
Depositing User: Damir Pajić
Date Deposited: 30 May 2014 10:38
Last Modified: 30 May 2014 12:13
URI: http://digre.pmf.unizg.hr/id/eprint/1998

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