2008骞达紝娉ㄥ畾鏄竴涓濂囩殑骞翠唤锛屽氨鍍忔垜浠父甯稿洖蹇嗚捣1986骞村彂鐜伴暓閽￠摐姘у寲鐗?/span>锛堥摐鍩鸿秴瀵兼潗鏂欙級鐨勮緣鐓屼竴鏍凤紝澶у搴旇浠嶇劧璁板緱2008骞寸殑鐤媯銆?/span>2008骞?/span>2鏈堬紝鏃ユ湰绉戝瀹堕鍏堟姤鍛婂彂鐜颁簡涓€绫绘柊鐨勯珮娓╄秴瀵兼潗鏂?mdash;閾佸熀瓒呭鏉愭枡銆?/span>

        2006骞?/span>鏃ユ湰涓滀含宸ヤ笟澶уHideo Hosono鏁欐巿鐨勫洟闃熷彂鐜扮涓€涓互閾?/span>涓鸿秴瀵间富浣撶殑鍖栧悎鐗?/span>锛?/span>LaFeOP锛?/span>锛屾墦鐮翠互寰€鏅亶璁ゅ畾閾?/span>鍏冪礌涓嶅埄褰㈡垚瓒呭鐨勮鏂€傛牴鎹?/span>BCS鐞嗚锛屼骇鐢熻秴瀵兼€х殑蹇呰鏉′欢鏄潗鏂欎腑鐨勭數瀛愬繀椤婚厤瀵癸紝杩欐牱閰嶅鐨勭數瀛愮О涓?/span>搴撴煆瀵?/span>銆?/span>搴撴煆瀵?/span>涓殑涓や釜鐢靛瓙鑷棆鐩稿弽锛屾墍浠ユ€?/span>鑷棆涓洪浂锛屽洜鑰岀瀛﹀璁や负瓒呭鎬?/span>涓?/span>閾佺鎬?/span>鍙兘鏃犳硶鍏卞瓨锛屾潗鏂欎腑濡傛灉鍔犲叆纾佹€у厓绱狅紙濡?/span>閾?/span>銆?/span>闀?/span>锛変細澶уぇ闄嶄綆瓒呭鎬с€傞搧鍩鸿秴瀵间綋铏界劧鍚湁閾?/span>鍏冪礌涓旀槸浜х敓瓒呭鐨勪富浣擄紝浣嗘槸閾?/span>鍜屽叾浠栧厓绱狅紙濡?/span>鐮?/span>銆?/span>纭?/span>锛夊舰鎴愰搧鍩哄钩闈㈠悗锛屽凡涓嶅啀鍏锋湁閾佺鎬?/span>銆?/span>2008骞?/span>2鏈堝垵锛?/span>Hideo Hosono鏁欐巿鐨勫洟闃熷啀搴﹀彂琛ㄩ搧鍩哄眰鐘舵潗鏂?/span>La[O_1-xF_x]FeAs锛?/span>x = 0.05 – 0.12锛夊湪缁濆娓╁害26K鏃跺瓨鍦?/span>瓒呭鎬?/span>锛岀爺绌堕搧鍩鸿秴瀵间綋渚垮湪涓栫晫涓婂舰鎴愪竴鑲＄儹娼€?/span>

         鐗╃悊鎵€鐜嬫鏋?/strong>缁勫拰闂绘捣铏?/strong>缁勫厛鍚庡湪涓€鍛ㄥ唴鍙戝竷瀹為獙缁撴灉璇佸疄浜嗚繖涓€浜嬪疄锛?/span>3鏈?/span>25鏃ュ拰3鏈?/span>26鏃ワ紝涓浗绉戝鎶€鏈ぇ瀛?strong style="mso-bidi-font-weight: normal">闄堜粰杈?/strong>缁勫拰鐗╃悊鎵€鐜嬫鏋?/strong>缁勫垎鍒嫭绔嬪彂鐜拌秴杩?/span>40K瓒呭浣擄紝绐佺牬楹﹀厠绫冲叞鏋侀檺锛岃瘉瀹炰负闈炰紶缁熻秴瀵硷紱3鏈?/span>28鏃ワ紝涓浗绉戝闄㈢墿鐞嗙爺绌舵墍璧靛繝璐ら瀵肩殑绉戠爺灏忕粍鎶ュ憡锛屾盁鎺烘潅闀ㄦ哀閾佺牱鍖栧悎鐗╃殑楂樻俯瓒呭涓寸晫娓╁害鍙揪52K銆?/span>4鏈?/span>13鏃ヨ绉戠爺灏忕粍鍙堟湁鏂板彂鐜帮細姘熸幒鏉傞拹姘ч搧鐮峰寲鍚堢墿鍦ㄥ帇鍔涚幆澧冧笅浜х敓浣滅敤锛屽叾瓒呭涓寸晫娓╁害杩涗竴姝ユ彁鍗囪嚦55K銆備腑绉戦櫌鐗╃悊鎵€闂绘捣铏庨瀵肩殑绉戠爺灏忕粍杩樻姤鍛婏紝閿舵幒鏉傞暓姘ч搧鐮峰寲鍚堢墿鐨勮秴瀵间复鐣屾俯搴︿负25K銆?/span>鐗╃悊鎵€鐜嬫鏋楃粍涓庢柟蹇犵粍鍚堜綔锛屾渶鏃╂彁鍑烘瘝浣撲腑鐨勬潯绾硅嚜鏃嬪瘑搴︽尝鐩革紝闅忓悗琚編鍥戒袱涓皬缁勭殑涓瓙鏁ｅ皠瀹為獙璇佸疄锛屾槸鐩墠璇ョ郴缁熶腑鏈€濂界殑鐗╃悊缁撴灉銆?/span>

       瓒呭鏄墿鐞嗕笘鐣屼腑鏈€濂囧鐨勭幇璞′箣涓€銆傛甯告儏鍐典笅锛岀數瀛愬湪閲戝睘涓繍鍔ㄦ椂锛屼細鍥犱负閲戝睘鏅舵牸鐨勪笉瀹屾暣鎬э紙濡傜己闄锋垨鏉傝川绛夛級鑰屽彂鐢熷脊璺虫崯鑰楄兘閲忥紝鍗虫湁鐢甸樆銆傝€岃秴瀵肩姸鎬佷笅锛岀數瀛愯兘姣棤缇佺粖鍦板墠琛屻€傝繖鏄洜涓哄綋浣庝簬鏌愪釜鐗瑰畾娓╁害鏃讹紝鐢靛瓙鍗虫垚瀵癸紝杩欐椂閲戝睘瑕佹兂闃荤鐢靛瓙杩愬姩锛屽氨闇€瑕佸厛鎷嗘暎鐢靛瓙瀵癸紝鑰屼綆浜庢煇涓俯搴︽椂锛岃兘閲忓氨浼氫笉瓒充互鎷嗘暎鐢靛瓙瀵癸紝鍥犳鐢靛瓙瀵瑰氨鑳芥祦鐣呰繍鍔ㄣ€?/span>
    閫氬父鐨勪綆娓╄秴瀵兼潗鏂欎腑锛岀數瀛愭槸閫氳繃鏅舵牸鍚勭粨鐐逛笂鐨勬绂诲瓙鎸姩鑰岀粨鍚堝湪涓€璧风殑銆備絾澶у鏁扮殑鐗╃悊瀛﹀閮借涓猴紝杩欎竴鐢靛瓙瀵圭粨鍚堟満鍒跺苟涓嶈兘瑙ｉ噴涓寸晫娓╁害鏈€楂樺彲杈?/span>138K鐨勯摐鍩烘潗鏂欒秴瀵肩幇璞°€傛瘡涓€绉嶉摐鍩鸿秴瀵兼潗鏂欓兘鏄敱灞傜姸鐨?/span>“閾滐紞姘?/span>”闈㈢粍鎴愶紝鍏朵腑鐨勭數瀛愭槸濡備綍鎴愬鐨勶紝浠嶆槸鏈В闅鹃銆傜洿鑷充粖鏃ワ紝瀵逛簬閾滃熀瓒呭鏉愭枡鐨勯珮娓╄秴瀵兼満鍒讹紝鐗╃悊瀛︾晫浠嶆湭褰㈡垚涓€鑷寸湅娉曪紝杩欎篃浣垮緱楂樻俯瓒呭鎴愪负褰撲粖鍑濊仛鎬佺墿鐞嗗涓渶澶х殑璋滃洟涔嬩竴銆傚洜姝ゅ緢澶氱瀛﹀閮藉笇鏈涘湪閾滃熀瓒呭鏉愭枡浠ュ鍐嶆壘鍒版柊鐨勯珮娓╄秴瀵兼潗鏂欙紝浠庤€岃兘澶熶娇楂樻俯瓒呭鏈哄埗鏇村姞鏄庢湕銆?/span>

       閾佸熀瓒呭浣?/span>寮曡捣璁稿绉戝瀹跺叴瓒ｇ殑閲嶈鍘熷洜涔嬩竴鍦ㄤ簬閾佸熀瓒呭浣撶殑缁撴瀯涓?/span>楂樻俯瓒呭鐨勯摐姘у钩闈㈢被浼硷紝瓒呭鎬?/span>鍙戠敓鍦ㄩ搧鍩哄钩闈笂锛屽睘浜庝簩缁寸殑瓒呭鏉愭枡銆傜爺绌堕搧鍩鸿秴瀵间綋鍙兘鏈夊姪浜庝簡瑙?/span>楂樻俯瓒呭鐨勬満鍒?/span>銆?/span>鏂板彂鐜扮殑杩欎竴绯诲垪閾佸熀瓒呭鏉愭枡閮藉叿鏈夌浉鍚岀殑鏅朵綋缁撴瀯锛屽畠浠湪鏈変簺鏂归潰涓庨摐鍩鸿秴瀵兼潗鏂欐儕浜哄湴鐩镐技銆備絾鏄绠楄〃鏄庯紝杩欎簺閾佸熀瓒呭鏉愭枡鐨勬櫠鏍兼尟鍔ㄦ彁渚涚殑鐢靛瓙瀵圭粨鍚堝姏閲忥紝涓嶈冻浠ヤ娇鏉愭枡鐨勮秴瀵间复鐣屾俯搴﹁揪鍒板姝ら珮鐨勬按骞炽€?/span>
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        鐗╃悊鎵€涓佹椽鐮旂┒缁勫強鐜嬫鏋楀皬缁?/span>涓庢棩鏈笢鍖楀ぇ瀛﹂珮妗ラ殕鏁欐巿灏忕粍鍚堜綔锛?/span>鍦ㄩ搧鍩洪珮娓╄秴瀵间綋瓒呭鑳介殭瀵圭О鎬у拰杞ㄩ亾鐩稿叧鎬х爺绌朵腑鍙栧緱鏂拌繘灞曘€備粬浠?/span>鍒╃敤瑙掑垎杈ㄥ厜鐢靛瓙鑳借氨鎶€鏈紝鍙戠幇浜嗛搧鍩鸿秴瀵间綋涓緷璧栬垂绫抽潰鐨勬棤鑺傜偣鐨勮秴瀵艰兘闅?/span> [ EuroPhysics Letters 83, 47001 (2008) ]锛岃鍥介檯鍚岃璁や负瀵归搧鍩鸿秴瀵间綋鐨?/span>s-娉㈠绉版€х殑寤虹珛鍏锋湁濂犲熀鎬ф剰涔夌殑宸ヤ綔銆傚湪姝ゅ悗鐨勪竴骞村鏉ワ紝涓佹椽灏忕粍鍜屽涓爺绌跺皬缁勫悎浣滃閾佸熀瓒呭浣撹繘琛屼簡鏇存繁鍏ョ殑鐮旂┒锛屽彇寰椾簡涓€绯诲垪閲嶈鐨勭爺绌舵垚鏋滐紝鍏朵腑鏈€绐佸嚭鐨勬槸鐢ㄥ涓湁璇存湇鍔涚殑瀹為獙缁撴灉鎻ず浜嗗弽閾佺娉㈢煝鐩歌繛鐨勫甫闂存暎灏?/span>(antiferromagnetic interband scatterings) 鍜岃垂绫抽潰杩戜技宓屽 (Fermi surface quasi-nesting) 鏄鑷撮搧鍩鸿秴瀵肩殑鏈€鏍规湰鍘熷洜銆?/span>
        钖勮啘鐮旂┒鏄嚌鑱氭€佺墿鐞嗙爺绌朵腑鐨勪竴涓噸瑕佹柟闈紝瀹冩帹鍔ㄤ簡鍗婂浣撳拰鍏夊浜т笟鐨勫彂灞曡繘姝ワ紝鍌敓骞朵績杩涗簡閲忓瓙鍙楅檺鏁堝簲銆佽〃闈㈢晫闈㈡晥搴旂瓑涓庣淮搴﹀拰灏哄害鐗规€х浉鍏崇爺绌堕鍩熺殑鍑虹幇鍜屽彂灞曘€傚瓒呭鐮旂┒鑰岃█锛岀敱浜庡叾浜氱ǔ鎬佺壒鎬э紝钖勮啘鐮旂┒鍦ㄥ緢闀挎椂闂村唴涓€鐩存槸浜轰滑鎺㈢储鏂版潗鏂欏苟鑾峰緱鎬ц兘浼樺紓鏉愭枡鐨勯噸瑕佹墜娈点€備粠2008骞存柊鐨勯搧鍩洪珮娓╄秴瀵间綋鍙戠幇浠ユ潵锛岄搧鍩鸿秴瀵艰杽鑶滅殑鐮旂┒杩涘睍鐩稿缂撴參銆傝繖鏄洜涓鸿緝闅剧簿纭帶鍒朵汉浠墍闇€瑕佺殑浜氱ǔ鐩镐腑鐨勫鍏冪礌閰嶆瘮銆佷互鍙婂绉嶇儹鍔涘鐩镐箣闂寸殑浜掔浉绔炰簤銆傜敱浜庡厓绱犻厤姣斿拰涓嶅悓鐑姏瀛︾浉绔炰簤鎵€瀵艰嚧鐨勮緝灏戦噺鐨勬潅璐紝鍦ㄥ潡鐘舵潗鏂欑殑鍚堟垚涓湁鏃跺彲浠ユ帴鍙楋紝浣嗗浣庣淮鐨勮杽鑶滄潗鏂欏嵈涓嶈兘鍏佽銆傝縿浠婂凡鍙戠幇鍥涚涓昏鏅朵綋缁撴瀯鐨勯搧鍩鸿秴瀵间綋锛屽寘鎷惈鐮锋垨纾风殑1111鐩搞€?/span>122鐩搞€?/span>111鐩革紝浠ュ強鍚哀纭棌鍏冪礌鐨?/span>11鐩搞€傚畠浠兘鍏锋湁瓒呭鐨?/span>Fe-X锛?/span>X涓?/span>As銆?/span>P銆?/span>Se銆?/span>S鎴?/span>Te绛夛級灞傦紝涓斿墠涓夌被瓒呭浣撲腑杩欎簺灞傜敱La-O绛夐殧绂诲眰闅斿紑锛岃€岃秴瀵肩殑11鐩?/span>FeSe銆?/span>Fe(Se,Te)鍙湁Fe-X灞傦紝鏅朵綋缁撴瀯鏈€绠€鍗曘€傜洰鍓嶄汉浠彧寰楀埌浜?/span>11鐩哥殑鍗曠浉銆佸寤躲€佽秴瀵艰杽鑶溿€傝€屽鍚牱鐨勯搧鍩鸿秴瀵间綋鑰岃█锛岀粡杩囪繎涓ゅ勾鐨勬帰绱紝浠嶆湭鑳藉緱鍒板崟鐩哥殑瓒呭钖勮啘銆?/span>
銆€    鐗╃悊鎵€鏇圭珛鏂?/strong>甯﹂鍗氬＋鐢熼煩鐑ㄣ€佹潕浣嶅媷锛屼笌鐩稿叧绉戠爺浜哄憳鍚堜綔锛屽湪鍥介檯涓婄巼鍏堝埗澶囧嚭鍗曠浉鐨勫寤?/span>FeSe瓒呭钖勮啘锛屽彂琛ㄦ枃绔狅紙Journal of Physics: Condensed Matter 21, 235702, 2009锛夊苟鐢宠浜嗗浗瀹朵笓鍒┿€傛鍚庯紝浠栦滑鍙堢郴缁熺爺绌朵簡FeSe 銆?/span>Fe(Se,Te)浠ュ強FeTe钖勮啘锛屼粬浠彂鐜?/span>FeTe姣嶄綋鍦ㄨ杽鑶滅姸鎬佷笅瓒呭锛岃浆鍙樻俯搴?/span>13 K锛屾帴杩?/span>Fe(Se,Te)鍥烘憾浣撴墍鑳借揪鍒扮殑鏈€楂樺€硷紝杩滈珮浜?/span>FeSe钖勮啘鐨勮秴瀵艰浆鍙樻俯搴︺€傝€屽埌鐩墠涓烘锛?/span>FeTe鍧楁潗鍦ㄥ父鍘嬪拰楂樺帇鐘舵€佷笅閮芥病鏈夊彂鐜拌秴瀵笺€備汉浠櫘閬嶈涓洪搧鍩鸿秴瀵肩數鎬т笌鑷棆瀵嗗害娉㈠瘑鍒囩浉鍏筹紝瀹為獙鍙戠幇楂樺帇涓嬭嚜鏃嬫定钀藉湪FeSe涓槑鏄惧寮鸿€屼笖瓒呭杞彉娓╁害鎻愰珮鍒?/span>37 K锛涘悓鏃讹紝鐞嗚璁＄畻琛ㄦ槑FeTe姣?/span>FeSe鏈夋洿寮虹殑鑷棆娑ㄨ惤骞跺彲鑳芥湁鏇撮珮鐨勮秴瀵艰浆鍙樻俯搴︺€備絾鏄疄楠屼笂FeTe骞舵病鏈夊湪楂樺帇涓嬭瀵熷埌棰勬湡鐨勭幇璞°€傛浌绔嬫柊绛変汉娉ㄦ剰鍒帮紝鍦ㄨ秴瀵肩殑FeTe钖勮啘涓紝鏅舵牸鍦ㄧ敓闀垮钩闈㈠唴涓嶆槸琚帇缂╋紝鑰屾槸琚媺浼革紝绫讳技浜庝竴绉?/span>“璐熷帇鍔涙晥搴?/span>”銆傚悓鏃朵粬浠彂鐜帮紝鍦ㄩ潪瓒呭鐨?/span>FeTe鍧楁潗涓?/span>70 K宸﹀彸鍑虹幇鐨勭粨鏋勫拰鑷棆娑ㄨ惤鐨勪竴绾х浉鍙橈紝鍦ㄨ秴瀵艰杽鑶滀腑琚槑鏄惧急鍖栥€傝椤圭爺绌跺閾佸熀瓒呭浣撴柊鏉愭枡鎺㈢储鍜岃秴瀵兼満鐞嗙爺绌跺叿鏈変竴瀹氱殑鎸囧鎰忎箟銆傜浉鍏虫垚鏋滃垔鐧诲湪2010骞?/span>1鏈?/span>8鏃ョ殑Physical Review Letters涓婏紙Physical Review Letters 104, 017003, 2010锛夈€?/span>

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