Characterization of Dy
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概要
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The electron paramagnetic resonance of the Dy<sup>3+</sup>impurity ion in a PbWO<inf>4</inf>:Dy single crystal, grown by the Czochralski method, has been investigated using an X-band spectrometer at 3.4 K. The spectroscopic splitting parameter g_{ij}, zero-field splitting parameters B_{k}^{q}, and hyperfine constant A are determined with the effective spin Hamiltonian. The rotation pattern in the crystallographic plane, together with spin Hamiltonian parameters of Dy<sup>3+</sup>-center obtained from experimental data, clearly show that the actual local site symmetry of the Dy<sup>3+</sup>ion is orthorhombic. Energy-levels of the ground state for Dy<sup>3+</sup>-center in the PbWO<inf>4</inf>crystal are calculated with optimized spin Hamiltonian parameters. It turns out that the Dy<sup>3+</sup>ion substitute for the Pb<sup>2+</sup>ion without any nearby charge compensation.
- 2013-03-15
著者
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Seo Hyo
Department Of Physics Pukyong National University
-
Gao Wei
Department Of Cardiology Peking University Third Hospital
-
Lee Soo
Department Of Agricultural Chemistry The University Of Tokyo
-
Yeom Tae
Department of Chemical and Material Engineering, The University of Auckland, Auckland 1142, New Zealand
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Seo Hyo
Department of Physics, Pukyong National University, Pusan 608-737, Republic of Korea
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Hodgson Michael
Department of Chemical and Material Engineering, The University of Auckland, Auckland 1142, New Zealand
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