徐州工程学院学报(自然科学版)
徐州工程學院學報(自然科學版)
서주공정학원학보(자연과학판)
JOURNAL OF XUZHOU INSTITUTE OF TECHNOLOGY(NATURAL SCIENCES EDITION)
2015年
2期
28-32
,共5页
超导体%透射电子显微镜%位错%固相反应
超導體%透射電子顯微鏡%位錯%固相反應
초도체%투사전자현미경%위착%고상반응
superconductor%transmission electron microscopy%dislocation%solid state reaction
文章采用两步固相反应法合成磷族氧化物超导体GdFePO .首先采用预熔技术制备Gd‐Fe‐P系三元合金,GdFePO的超导性在约6.1 K时可以观察的到,合成后进行退火处理,可以有效地降低位错密度,进而影响到超导转变.通过透射电子显微镜的分析可以揭示可调整的超导性能和GdFePO沿[001]方向的位错之间的关系.
文章採用兩步固相反應法閤成燐族氧化物超導體GdFePO .首先採用預鎔技術製備Gd‐Fe‐P繫三元閤金,GdFePO的超導性在約6.1 K時可以觀察的到,閤成後進行退火處理,可以有效地降低位錯密度,進而影響到超導轉變.通過透射電子顯微鏡的分析可以揭示可調整的超導性能和GdFePO沿[001]方嚮的位錯之間的關繫.
문장채용량보고상반응법합성린족양화물초도체GdFePO .수선채용예용기술제비Gd‐Fe‐P계삼원합금,GdFePO적초도성재약6.1 K시가이관찰적도,합성후진행퇴화처리,가이유효지강저위착밀도,진이영향도초도전변.통과투사전자현미경적분석가이게시가조정적초도성능화GdFePO연[001]방향적위착지간적관계.
Pnictide oxide superconductor GdFePO has been synthesized by a two‐step solid reaction method .Gd‐Fe‐P ternary alloy is firstly prepared using pre‐melting technology .T he superconductivity at a‐round 6 .1 K in GdFePO is observed .An annealing treatment done after synthesis could effectively reduce the dislocation density and furthermore affect the superconducting transition .Detailed evidences based on transmission electron microscopy analysis reveal the relationship between the adjustable superconducting properties and the dislocations along[001] orientation of GdFePO .