Abacwaningi abavela e-USA iseli lenkumbulo elirekhoda idatha ngokushintsha izingqimba zensimbi zibe ama-athomu amathathu awugqinsi. Iseli lenkumbulo elinjalo lithembisa ukuminyana okuphezulu kakhulu kokurekhoda futhi lidinga ubuncane bamandla ukuze lisetshenziswe.
Lokhu kuthuthukiswa kubikwe yiqembu elihlangene lososayensi abavela elabhorethri ye-SLAC e-Stanford University, eNyuvesi yaseCalifornia eBerkeley nase-Texas A&M University. Idatha eshicilelwe kujenali .
Ososayensi benza uchungechunge lokuhlola ngezitaki zensimbi ye-2D ebizwa ngokuthi i-tungsten ditelluride. Ungqimba ngalunye lwensimbi engu-2D esitakini lwaluwugqinsi lwama-athomu amathathu, luthembisa ukuqoshwa okuminyene kakhulu uma kuqhathaniswa namaseli enkumbulo ye-silicon. Ukuhlolwa kwembule ukuthi inani elincane lamandla elisetshenziswa esitakini libangela ukushelela (ukugudluka) kwesendlalelo ngasinye esiyinqaba esitakini sezendlalelo. Lokhu kwenzeka ngokushesha kangangokuthi ukutholakala kungaholela ekudalweni kwememori yekhompyutha esebenza kakhulu, engagcina ulwazi ngaphandle kokunikezwa kwamandla (okungaguquguquki).
Ulwazi lokurekhoda (uziro noma oyedwa) kwenzeka ngenqubo yokususa ungqimba lwensimbi kusitaki. Ukususwa kwesendlalelo kubangela izinguquko ekuhambeni kwama-electron ezingxenyeni ezingaphezulu neziphansi zezinsimbi ze-2D ngokuhlobene nongqimba olususiwe. Ukuze ufunde lolu lwazi, ososayensi bahlongoza ukusebenzisa umphumela we-quantum obizwa ngokuthi . Lokhu ukugeleza kazibuthe okukhiqizwa ngaphakathi kwempahla, okwenzeka lapho izinhlayiya ezishajwa zihamba ngaphakathi kwengilazi yekristalu.
Uma sibheka incazelo yokuhlolwa, inkumbulo esezingqimbeni eziguquguqukayo ezitakini ze-2D metals iyithemba elikude kakhulu. Kodwa ithemba liyalinga kakhulu, lithembisa ukuqoshwa kwedatha okuphindwe izikhathi eziyi-100 ukuze kugcinwe isikhathi eside. Endleleni, kunezilingo eziningi okufanele zenziwe kanye nenhlanganisela engcono kakhulu yezinto okufanele zikhethwe.
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Source: 3dnews.ru