descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1994 English Publisher:Royal Society of Chemistry (RSC)Journal:Journal of the Chemical Society, Faraday Transactions, volume 90, page 3,267 (issn: 0956-5000, eissn: 1364-5455,

Authors: CORVAJA, CARLO; FRANCO, LORENZO; L. PASIMENI L; TOFFOLETTI, ANTONIO;

doi: 10.1039/ft9949003267

handle: 11577/2456575

Time-resolved EPR study of spin polarization and dynamics of F+ centres in additively coloured CaO crystals

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Abstract

Optical excitation of additively coloured CaO crystals generates 1T1u and 3T1u excited states and F+ defects, the latter being revealed by EPR experiments. Interaction of the excited 3T1u triplet state and the F+ centre is documented by the emissive character of the transient EPR signal detected just after a laser pulse. A quenching of the initial polarization, observed at high microwave power, is ascribed to microwave saturation of the F+ spin levels.

Related Organizations

University of Padua
Italy

Keywords

Oxides; EPR spectroscopy; color centers

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