✦ LIBER ✦

EPR, ENDOR and ESE investigations on chromium modified PbTiO3 ceramics

✍ Scribed by R. Böttcher; W. Brunner; B. Milsch; G. Völkel; W. Windsch; S.T. Kirillov

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 304 KB
Volume: 129
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80398-0

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✦ Synopsis

EPR and ENDOR studies show that chromium is incorporated in monocrystalline regions of the grains in PbTiOs ceramics as Cr5+ ions at Ti4' sites. The local symmetry of the Cr5+ impurity is lower than of the host Ti4* site in the crystallite. ESE measurements of the spin-lattice relaxation of the Cr5+ centre point to a @ructural transition at 10 K.