中国材料进展
中國材料進展
중국재료진전
MATERIALS CHINA
2010年
8期
18-26
,共9页
离子基超导体%新超导电性%配对机制%反铁磁性%自旋涨落
離子基超導體%新超導電性%配對機製%反鐵磁性%自鏇漲落
리자기초도체%신초도전성%배대궤제%반철자성%자선창락
iron based superconductors%novel superconductivity%pairing mechanisms%antiferromagnetism%spin fluctuations
氟掺杂的LaFeAsO中26 K超导电性的发现极大地促进了凝聚态物理的发展.在短短的两年时间中,已经有过千篇文章发表,已经有七种新结构被发现,超导转变温度也被迅速提升到了55～57 K.此外,在超导机理方面这类化合物也已经被认定属于非常规,而反铁磁自旋涨落被认为是导致超导配对的媒介.从材料和物理学的角度对这类化合物的性质和超导机理给出了简单的综述.还对未来的研究及应用给出了一些展望.
氟摻雜的LaFeAsO中26 K超導電性的髮現極大地促進瞭凝聚態物理的髮展.在短短的兩年時間中,已經有過韆篇文章髮錶,已經有七種新結構被髮現,超導轉變溫度也被迅速提升到瞭55～57 K.此外,在超導機理方麵這類化閤物也已經被認定屬于非常規,而反鐵磁自鏇漲落被認為是導緻超導配對的媒介.從材料和物理學的角度對這類化閤物的性質和超導機理給齣瞭簡單的綜述.還對未來的研究及應用給齣瞭一些展望.
불참잡적LaFeAsO중26 K초도전성적발현겁대지촉진료응취태물리적발전.재단단적량년시간중,이경유과천편문장발표,이경유칠충신결구피발현,초도전변온도야피신속제승도료55～57 K.차외,재초도궤리방면저류화합물야이경피인정속우비상규,이반철자자선창락피인위시도치초도배대적매개.종재료화물이학적각도대저류화합물적성질화초도궤리급출료간단적종술.환대미래적연구급응용급출료일사전망.
The discovery of superconductivity at 26 K in F doped LaOFeAs has stimulated enormous interests in the field of condensed matter physics.In short two years more than 1 000 scientific papers have been published,the family of the iron pnictide superconductors has been quickly expanded to seven different structures and the superconducting transition temperature has been rapidly raised to about 55～57 K.In additional the pairing mechanism has been categorized as unconventional with the antiferromagnetic spin fluctuations probably as the pairing media.This article will give a brief review on the progress of both materials and physics in this field.We will also give some perspectives on the possible applications of these new superconductors.
