 | 濉戞枡 | 姍¤兌 | 綰ょ淮 | 娑傛枡涓庢補澧?/a> | 鑳剁矘鍓?/a> | 澶嶅悎鏉愭枡 | 鐭沖寲 | 鍖栧伐 | 浠櫒浠〃 | 鏂頒駭涓?/a> | 涓撻 | 榪斿洖棣栭〉 |
|
| 濉戞枡 | 姍¤兌 | 綰ょ淮 | 娑傛枡涓庢補澧?/a> | 鑳剁矘鍓?/a> | 澶嶅悎鏉愭枡 | 鐭沖寲 | 鍖栧伐 | 浠櫒浠〃 | 鏂頒駭涓?/a> | 涓撻 | 榪斿洖棣栭〉 |
|
榪戞棩錛屼雞鏂嫆鐞嗗伐(Rensselaer Polytechnic Institute)鐨勫彶澶欓銆佸姞宸炲ぇ瀛︽渤婊ㄥ垎鏍?/span>(Univ of California Riverside)鐨勫磾姘告稕錛屼互鍙婄數瀛愮鎶澶у鐨勭帇鏇炬櫀鐮旂┒緇勭瓑鑱斿悎鎶ラ亾浜?/span>WS2-WSe2浜岀淮鍗婂浣撳紓璐ㄧ粨瓚呮櫠鏍間腑寮哄叧鑱旂粷緙樻佸灞傞棿嬋瀛愮殑鐙壒璋冩帶浣滅敤銆傛枃绔犺繎鏈熷湪綰垮彂琛ㄤ簬銆?/span>Nature Communications銆嬨?/span>
鍚堜綔鍥㈤槦鍦ㄥ厛鍓嶇爺絀訛紙Nature Physics 17, 715 (2021)錛変腑錛屽彂鐜?/span>0銆?/sup>/60銆?/sup>鍫嗗彔鐨?/span>WS2-WSe2涓艦鎴愮殑鑾皵(moire)瓚呮櫠鏍間細浣垮緱緋葷粺浜х敓鑳藉甫鑹叉暎姣旇緝騫蟲暣鐨勮糠浣犺兘甯︼紝騫朵嬌鐢ㄦ壂鎻忓井娉㈤樆鎶楁帰閽堟妧鏈瀵熷埌浜嗚秴鏅舵牸涓殑鐢靛瓙瀹屽叏濉厖鎬侊紙錒?錛夛紝鑾壒緇濈紭鎬侊紙?1錛変互鍙?/span>Wigner 鏅朵綋錛?/span>-1/3,-2/3錛夌瓑涓緋誨垪鍒嗘暟濉厖鎬併傚湪榪欐鐨勭爺絀朵腑錛屽悎浣滃洟闃熻繘涓姝ユ彮紺轟簡榪欎簺寮哄叧鑱旂粷緙樻佸灞傞棿嬋瀛愬彂鍏夊己搴︺佹嘗闀褲佸強璋鋒瀬鍖栫殑楂樻晥璋冩帶鍜屾瀬澶у寮猴紝灞曠ず浜嗕簩緇村紓璐ㄧ粨瓚呮櫠鏍間綔涓烘柊鍨嬮噺瀛愬彂鍏夊崟鍏冮樀鍒楃殑宸ㄥぇ娼滃姏銆?/span>
浜岀淮鍗婂浣?/span>WS2鍜?/span>WSe2鍏鋒湁鍚屾牱鐨勬櫠鏍肩粨鏋勶紝鍚屾椂鍦ㄦ櫠鏍煎父鏁頒笂鏈夋瀬鍏?/span>寰皬鐨勫樊寮傘傚洜姝ゅ綋榪欎袱縐嶄簩緇存櫠浣撲互涓ユ牸鐨?/span>0銆?/sup>鎴?/span>60銆?/sup>鍫嗗彔鏃訛紝鍙互褰㈡垚鍛ㄦ湡鎺ヨ繎10綰崇背鐨勮帿灝?/span>(moire)瓚呮櫠鏍鹼紝榪滃ぇ浜庡師瀛愭櫠浣撶殑鏅舵牸鍛ㄦ湡錛?/span><1nm錛夛紝鍦ㄤ簩緇村紓璐ㄧ粨涓艦鎴愬懆鏈熸х殑鍔垮満銆傜敱浜庣數瀛愰棿鍏鋒湁寰堝己鐨勫簱浼︽帓鏂ョ浉浜掍綔鐢紝鍦ㄨ帿灝旇秴鏅舵牸涓數瀛愯兘澶熷疄鐜扮┖闂存湁搴忎笖闀垮懆鏈熺殑鎺掑竷錛涘悓鏃剁敱浜庝綋緋葷殑浜岀淮鐗規э紝鐢靛瓙闂寸殑搴撲雞鎺掓枼鍔垮ぇ澶у寮猴紝浣垮緱璇ヤ簩緇村紓璐ㄧ粨緋葷粺涓殑鐢靛瓙琛屼負灞曠幇鍑烘樉钁楃殑寮哄叧鑱旀晥搴斻?/span>
浣滀負鎵弿鎺㈤拡鎶鏈殑涓涓彂灞曪紝鎵弿寰嘗闃繪姉鎺㈤拡鎶鏈紙microwave impedance microscopy, MIM錛変嬌鐢ㄩ噾灞為拡灝栦紶瀵艱繎鍦哄井娉紝鏉ュ疄鐜板閽堝皷浣嶇疆鏍峰搧灞鍩熼樆鎶楃殑綺懼瘑嫻嬮噺錛屽茍鏈夐潪甯擱珮鐨勭┖闂村垎杈ㄧ巼錛屽鐮旂┒璇ヤ簩緇村紓璐ㄧ粨鑾皵瓚呮櫠鏍間綋緋誨叿鏈夌獊鍑虹殑浼樺娍錛涜屾牱鍝佺殑灞鍩熼樆鎶楀垯鑳藉鏈夋晥鍙嶆槧鑾皵瓚呮櫠鏍間腑榪欎簺榪蜂綘鑳藉甫鐨勫～鍏呯姸鎬併?/span>
鐮旂┒鑰呬滑閫氳繃鏍呭帇榪炵畫璋冩帶鐢靛瓙鐨勫～鍏呯姸鎬侊紝鍒╃敤MIM鐩戞祴鍏舵紨鍖栬繃紼嬶紝鍚屾椂鐩戞祴灞傞棿嬋瀛愬彂鍏夌殑鍙樺寲銆傜爺絀惰呬滑鍙戠幇錛屽綋緋葷粺澶勪簬鏁存暟鍜屽垎鏁扮殑濉厖鎬佹椂錛屾縺瀛愬彂鍏変細寰楀埌鏄捐憲鐨勫寮猴紝騫跺彂鐢熻摑縐伙紱涓庢鍚屾椂錛屽渾鍋忔尟鍏夎嚧鍙戝厜鏁版嵁鏄劇ず錛屾縺瀛愬彂鍏夌殑璋鋒瀬鍖栧己搴︿篃寰楀埌浜嗗ぇ澶у寮恒傛墍鏈夎繖浜涜繖浜涘眰闂存縺瀛愬湪鍙鍏夐孌電殑鍙樺寲閮戒即闅忕潃寰嘗棰戞鐢靛鐨勬瀬灝忓鹼紝鏈夊姏鍦拌瘉鏄庝簡鑾皵瓚呮櫠鏍間腑鐨勫己鍏寵仈鐢靛瓙鎬佸拰灞傞棿嬋瀛愮殑楂樻晥鐩鎬簰浣滅敤銆傝繖涓緇撴灉涓哄埄鐢ㄥ熀浜庝簩緇村崐瀵間綋寮傝川緇撶殑鑾皵瓚呮櫠鏍兼潵寮鍙戞柊鍨嬮噺瀛愬彂鍏夊崟鍏冮樀鍒楁彁渚涗簡鏂扮殑鎬濊礬銆?/span>
鍣ㄤ歡緇撴瀯鍜岃兘甯︾粨鏋勭ず鎰忓浘錛屽眰闂存縺瀛愬彂鍏夐殢鏍呭帇鐨勫彉鍖栬繃紼嬶紝浠ュ強鑾皵瓚呮櫠鏍間腑涓嶅悓濉厖鎬佺殑紺烘剰鍥?span>銆傚浘鐗囨潵婧愬強鐗堟潈錛?/span>Nature Communications鍙婅鏂囦綔鑰?/span>
鎵弿寰嘗闃繪姉鎺㈤拡嫻嬪緱灞鍩熼樆鎶?span>闅忔爡鍘嬬殑鍙樺寲榪囩▼錛屽強鍏朵笌灞傞棿嬋瀛愬彂鍏夊嘲浣嶇殑瀵瑰簲鍏崇郴銆傚彸鍥句負宸﹀浘灞閮ㄥ尯鍩熺殑緇嗚妭鏀懼ぇ銆?/span>
璁烘枃鐨勫叡鍚岀涓浣滆呭寘鎷吉鑳滅敺錛岀帇澶╃洘錛岄粍闆勫拰闄堜笢瀛﹀崥澹備雞鏂嫆鐞嗗伐鍙插椋炴暀鎺堛佸姞宸炲ぇ瀛︽渤婊ㄥ垎鏍″磾姘告稕鏁欐巿鍜岀數瀛愮鎶澶у鐜嬫浘鏅栨暀鎺堜負鏈枃鐨勫叡鍚岄氳浣滆呫傚悎浣滆呰繕鍖呮嫭鏉ヨ嚜鍗¤愬熀姊呴殕澶у銆佷簹鍒╂閭ｅ窞绔嬪ぇ瀛︿互鍙婃棩鏈浗绔嬫潗鏂欑瀛︾爺絀舵墍鐨勭爺絀惰呫?/span>
鍘熸枃閾炬帴:http://dx.doi.org/10.1038/s41467-021-23732-6