Color center formation in vacuum sintered Nd3x Y3-3x Al5 O12 transparent ceramics

Adam J. Stevenson, Brad C. Bittel, Christopher G. Leh, Xin Li, Elizabeth C. Dickey, Patrick M. Lenahan, Gary L. Messing

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Abstract

Color center formation was studied in vacuum sintered Nd3x Y3-3x Al5 O12 transparent ceramics. The primary color centers were F- and F+ -centers as evidenced by optical absorption in the 250-400 nm wavelength range and the presence of an electron spin resonance (ESR) line at g=1.9977. Annealing in air at 1600 °C for 10 h reduced the number of color centers to below the detection limit of ESR. Color center formation is controlled by oxidation and reduction of Fe2+/3+ impurities.

Original languageEnglish (US)
Article number051906
JournalApplied Physics Letters
Volume98
Issue number5
DOIs
StatePublished - Jan 31 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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