Mossbauer분광법을 이용한 CdFe2O4와 CdFeAIlO4의 Fe 이온에 관한 연구

백승도; 고정대; Seung Do Baek; Jeong Dae Ko

Korean Journal of Materials Research, Vol.9, No.4, 345-348, April, 1999

Export Citation

Mossbauer분광법을 이용한 CdFe2O4와 CdFeAIlO4의 Fe 이온에 관한 연구

A Study on Fe ions in the CdFe2O4 and CdFeAIO4 by Mossbauer Spectroscopy

백승도, 고정대¹

강남대학교 교양학부
¹제주대학교 물리학과

Seung Do Baek, and Jeong Dae Ko¹

Kangnam University, Yongin 449-702, Korea
¹Department of Physics, Cheju National University, Cheju 690-756, Korea

초록

스피넬 페라이트 CdFe2O4와 CdF2AlO4의 Mossbauer 스펙트럼을 300K 부터 900K까지의 온도구간에서 측정분석하여, C.S., Q.S., 공명흡수면적등의 온도 의존성을 조사하고, 각 시료의 Fe이온에 대한 Debye온도와 되틤없는 확률 f, 평균자승변위 , 평균자승속도 를 계산하였다. 이때 두시료에서 나타나는 Fe이온의 물성의 차이는 주로 Fe3+ - O2- 의 결합으로 설명할 수 있었다.

The properties of Fe ions in the CdFe2O4 and CdFeAIO4 were investigated using the Mossbauer spectroscopy, in the temperature range from 300K to 900K. The calculated Debye temperature, tecoil free fraction, mean square displacement and velocity are, 476.5K, 0.835, 3.39 x 10 -19 cm2, and 1.11 X 10 9cm2/sec2 fot Fe ions in the CdFe2O4 and 369.0K, 0.741, 5.65 X 10 -19 cm2 and 1.33 X 10 9 cm2/sec2 in the CdFeAIO4. The differerence of the properties in the two samples were explained by the variation of the Fe3+ - O2- bonding length with the substituted Al ions.

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