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    • 2. 发明公开
    • 천이금속 또는 희토류금속을 고용하는 투명강자성알카리ㆍ칼코게나이드 화합물 및 그 강자성 특성의조정방법
    • 包含过渡金属或稀土金属的固体溶液的透明氟烷烃/氯化铝化合物及其调节氟化物的方法
    • KR1020060052674A
    • 2006-05-19
    • KR1020057020781
    • 2004-03-12
    • 고쿠리츠켄큐카이하츠호진 카가쿠기쥬츠신코키코
    • 요시다,히로시세이께,마사요시사또,가즈노리야나세,아끼라
    • C30B29/10H01F1/055
    • G02F1/0036H01F1/0009H01F1/055H01F1/402
    • A transparent ferromagnetic alkali/chalcogen compound providing ferromagnetism, which results from complete spin polarization of an alkali/chalcogen compound capable of light transmission; and a method of regulating the ferromagnetic properties thereof. In particular, a transparent ferromagnetic alkali/chalcogenide compound comprising a solid solution of at least one metal selected from among 3d transition metal elements including Ti, V, Cr, Mn, Fe, Co, Ni and Cu, 4d transition metal elements including Zr. Nb, Mo, Tc, Ru and Rh, 5d transition metal elements including Hf, Ta, W, Os, Re and Ir and lanthanum series rare earth elements including Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu in an alkali/chalcogen compound having an inverted fluorite structure so as to exhibit ferromagnetic properties. The ferromagnetic properties thereof are regulated by effecting valence electron control through adjusting of the concentration of such metal elements, combination of two or more metal elements, addition of acceptor and donor, etc.
    • 提供铁磁性的透明铁磁碱/硫族化合物,其由能够透光的碱/硫族化合物的完全自旋极化产生; 以及调节铁磁特性的方法。 特别是包含选自包括Ti,V,Cr,Mn,Fe,Co,Ni和Cu的3d过渡金属元素中的至少一种金属的固体溶液的透明铁磁性/硫族化合物,包含Zr的4d过渡金属元素。 Nb,Mo,Tc,Ru和Rh,包括Hf,Ta,W,Os,Re和Ir的5d过渡金属元素和包括Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy的镧系稀土元素 ,Ho,Er,Tm,Yb和Lu,具有反向萤石结构的碱/硫族化合物,以显示出铁磁性。 其铁磁性能通过调节这种金属元素的浓度,两种或更多种金属元素的组合,添加受体和供体等来实现价电子控制来调节。