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Observation of the cubic-field splitting of an excited S = 2 manifold in a cubic copper tetramer

Black, T. D. and Rubins, R. S. and De, Dilip Kumar and Richard, C.Dickinson and Baker, W. A. (1984) Observation of the cubic-field splitting of an excited S = 2 manifold in a cubic copper tetramer. J. Chem. Phys, 80 (10). pp. 4620-4624.

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Abstract

EPR measurements on single crystals of Cu40Cl6(triphenylphosphine oxide)4 at liquid helium temperatures in the frequency ranges 14-17 and 34-35 GHz were fitted to a simple cubicS= 2 spin Hamiltonian with g = 2.10 ± 0.01 and a zero-field splitting of(0.53 ± 0.01) em - 1 • From the decrease in intensity of the S = 2 spectrum on cooling below 4.2 K and the absence of an S = 1 spectrum, the S = 2 manifold was deduced to lie ( 14 ± 1) em- 1 above a nonmagnetic ground state. The EPR results are used as a test of the various theories developed to explain the magnetic susceptibility of copper tetramers

Item Type: Article
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 21 Apr 2015 15:14
Last Modified: 21 Apr 2015 15:14
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/5080

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