Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Electron Spin Resonance Study of Fe3+ in (40-x)BaO⋅xFe2O3⋅60P2O5 Glasses

(40-x)BaO⋅xFe2O3⋅60P2O5 유리의 Fe3+이온에 관한 전자스핀공명 연구

  • Kang, Eun-Tae (School of Materials Science and Engineering, Gyeongsang National University)
  • 강은태 (경상대학교 나노.신소재공학부)
  • Published : 2008.03.31
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Abstract

(40-x)BaO${\cdot}xFe_2O_3{\cdot}60P_2O_5$ glasses with $5{\leq}x{\leq}35mol%$ were investigated by ESR spectroscopy. Two resonances observed near g=2.0 and g=4.3. The line at g=4.3 disappeared with the increase of the $Fe_2O_3$ content. The resonance at $g{\approx}2.0$ displayed characteristic signal consisting of superposed extremely broad and narrow components. The broader one indicates the presence of the association of two or more $Fe^{3+}$ ions, antiferromagnetically and the narrow one is related to the microclusters involving iron ions. Temperature dependence of the ESR integrated intensity revealed short-range antiferromagnetic character for $x{\geq}15mol%$.

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