Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9587509 | Journal of Magnetic Resonance | 2005 | 5 Pages |
Abstract
EPR measurements have been carried out on a single crystal of Mn2+-doped NH4Cl0.9I0.1 at 170-GHz in the temperature range of 312-4.2Â K. The spectra have been analyzed (i) to estimate the spin-Hamiltonian parameters; (ii) to study the temperature variation of the zero-field splitting (ZFS) parameter; (iii) to confirm the negative absolute sign of the ZFS parameter unequivocally from the temperature-dependent relative intensities of hyperfine sextets at temperatures below 10Â K; and (iv) to detect the occurrence of a structural phase transition at 4.35Â K from the change in the structure of the EPR lines with temperature below 10Â K.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Sushil K. Misra, Serguei I. Andronenko, Prem Chand, Keith A. Earle, Sergei V. Paschenko, Jack H. Freed,