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Temperature dependence of zero-field splitting of manganese(2+) in dicalcium barium propionate

Bhat, SV and Dhar, V and Srinivasan, R (1983) Temperature dependence of zero-field splitting of manganese(2+) in dicalcium barium propionate. In: Indian Journal of Pure and Applied Physics, 21 (9). pp. 516-520.

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Abstract

The axial splitting parameter D in dicalcium barium propionate doped with $Mn2^+$ was studied at 139-597 K, and the temp. dependence of D of phase-1 of the compd. was fitted to conform to a quadratic form at 265-597 K. The phase transition causes a slight deviation from the quadratic form above the transition temp., over a range of approx 50 K. The discontinuous change in the D-tensor at the cubic .tautm. orthorhombic transition at 267 K is analyzed in terms of an abrupt slowing of the propionate group flipping (between its 2 equil. positions), accompanied by a static distortion. The cubic phase is the time-av. of 2 equil. configurations corresponding to the low temperature phase.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to NISCAIR.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 14 Jul 2008
Last Modified: 27 Aug 2008 13:35
URI: http://eprints.iisc.ernet.in/id/eprint/15007

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