Investigations of the new trigonal ${Gd}^{3 +}$ ESR center produced in irradiated alkaline-earth fluoride crystals

Publisher Website

1 December 1974

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 10 (11) , 4515-4522
https://doi.org/10.1103/physrevb.10.4515

Abstract

A detailed account is given of various properties of the new trigonal

{Gd}^{3 +}

ESR center produced by x-ray irradiation in single crystals of Ca

F_{2}

and Sr

F_{2}

containing gadolinium ions. The fine-structure splitting of the new center is characterized (in units of

10^{- 4}

{cm}^{- 1}

) by

b_{2}^{0} = - 2905.7 \pm 0.5

,

b_{4}^{0} = + 12.6 \pm 0.2

,

b_{6}^{0} = 0 \pm 0.3

,

b_{4}^{3} = - 547 \pm 10

,

b_{6}^{3} = + 30 \pm 15

,

b_{6}^{6} = + 11 \pm 15

in Ca

F_{2}

; and

b_{2}^{0} = - 2671.7 \pm 0.5

,

b_{4}^{0} = + 11.7 \pm 0.2

,

b_{6}^{0} = 0 \pm 0.3

,

b_{4}^{3} = - 346 \pm 10

,

b_{6}^{3} = + 22 \pm 15

,

b_{6}^{6} = + 24 \pm 15

in Sr

F_{2}

. Despite extensive experimentation, the new center has not been produced in Ba

F_{2}

crystals.

Keywords

This publication has 11 references indexed in Scilit:

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The Journal of Chemical Physics, 1974
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Observation of a New ${Gd}^{3 +}$ ESR Center in Irradiated Ca $F_{2}$
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