Spinel 결정내에서의 초교환 상호작용에 관한 연구

• 영문명: A Study on the Superexchange Interactions of Spinel Crystals
• 발행기관: 국민대학교 교육연구소
• 저자명: 金哲聖(Kim Chul Sung)
• 간행물 정보: 『교육논총』제1집, 123~132쪽, 전체 10쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 1982.02.01

영문 초록

  For studies on the magnetic properties of spinel crystals, both microscopic measurements by the M？ssbauer spectra method and macroscopic measurements by the magnetic susceptibility method have been made on a number of compounds in the family Fe<SUB>x</SUB>Cu<SUB>1-x</SUB> Rh₂Se₄.   The Fe<SUB>x</SUB>Cu<SUB>1-x</SUB> Rh₂Se₄ were prepared by the direct composition method from the X-ray diffraction studies lattics parameters have been shown with Vegad law.   The M？ssbauer spectra were analyzed by the Non linear regression least square fitting method using a computer.   Temperature dependence of inverse magnetic susceptibility show that the values of θ indicate -150K and -182Kfor Fe<SUB>0.1</SUB> Cu<SUB>0.9</SUB> Re₂ Se₄ and FeRh₂Se₄ respectively.   Spinel crystals Fe<SUB>x</SUB>Cu<SUB>1-x</SUB> Rh₂Se₄ are antiferromagnetic exhibiting negative superexchange interaction.   The isomer shift indicate that Fe ion tend toward Fe？³ and Fe？² values respectively.

목차

Ⅰ. 서론
Ⅱ. 실험방법
Ⅲ. 실험결과 및 논의
〈참고문헌〉
(Summary)