Characterization of X-ray-irradiated β-Ca 3(PO 4) 2:Dy by means of ESR Spectroscopy

K. Nakashima, M. Kakihana, J. Yamauchi

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1 Citation (Scopus)


Electron spin resonance (ESR) spectra caused by a stable trapped H atom, a Dy 3+ ion, and a PO 4 unit were observed in X-ray-irradiated dysprosium-doped β-tricalcium phosphate (β-Ca 3(PO 4) 2:Dy, β-TCP:Dy) phosphor. The ESR spectrum of the H atom in the X-ray-irradiated β-TCP:Dy phosphor was slightly different from that of nondoped X-ray-irradiated β-TCP, suggesting that the Dy 3+ spin state has a significant effect on the relaxation time of electron spins. The electron spin echo of the H atom was observed in the X-ray-irradiated β-TCP but not in the corresponding X-ray-irradiated β-TCP:Dy phosphor.

Original languageEnglish
Pages (from-to)37-43
Number of pages7
JournalApplied Magnetic Resonance
Issue number1-2
Publication statusPublished - 2008 Mar 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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