Mune superconducting zvinhu, magetsi emagetsi anoyerera pasina chero kupikiswa. Kune akati wandei mashandisirwo echiitiko ichi; zvisinei, mibvunzo inokosha mizhinji yasara isati yapindurwa. Anobatana naProfessor Justin Ye, mukuru weboka reDevice Physics of Complex Materials paYunivhesiti yeGroningen, akadzidza superconductivity mune yakapetwa kaviri ye molybdenum disulfide uye akawana nyika itsva dze superconducting. Mhedzisiro yacho yakaburitswa mujenari Nature Nanotechnology musi wa 4 Mbudzi.

Superconductivity yakaratidzwa mune monolayer makristasi e, semuenzaniso, molybdenum disulphide kana tungsten disulfide ine ukobvu hwemaatomu matatu chete. "Mune maviri monolayers, kune imwe yakakosha mhando ye superconductivity umo mukati memagnetic field inodzivirira superconducting state kubva kunze kwemagnetic fields," Ye anotsanangura kudaro. Yakajairika superconductivity inonyangarika kana yakakura yekunze magineti ikaiswa, asi iyi Ising superconductivity inodzivirirwa zvakasimba. Kunyangwe mune yakasimba static magnetic field muEurope, iyo ine simba re 37 Tesla, iyo superconductivity mu tungsten disulfide hairatidzi chero shanduko. Zvisinei, kunyange zvazvo zvakanaka kuva nekudzivirirwa kwakasimba kwakadaro, dambudziko rinotevera nderokuwana nzira yekudzora iyi inodzivirira, nekushandisa munda wemagetsi.

New superconducting states

Ye nevaaishanda navo vakadzidza yakapetwa kaviri yemolybdenum disulfide: "Mukugadzirisa ikoko, kupindirana pakati pezvikamu zviviri izvi kunogadzira nyika itsva dzepamusoro." Iwe wakagadzira yakarembera yakapetwa kaviri, ine ionic fluid pamativi ese ayo inogona kushandiswa kugadzira yemagetsi kuyambuka bilayer. "Mune monolayer yega, munda wakadaro uchange uine asymmetric, une maion akanaka kune rimwe divi uye mhosva dzisina kunaka dzakakonzerwa kune rimwe. Nekudaro, mubilayer, tinogona kuve nemari yakafanana yekuchaja inokonzereswa kune ese mamonolayers, tichigadzira symmetrical system, "Ye anotsanangura. Iyo yemagetsi munda wakasikwa waigona kushandiswa kushandura superconductivity nekudzima. Izvi zvinoreva kuti superconducting transistor yakagadzirwa iyo inogona kuvharwa kuburikidza neiyo ionic fluid.

Mune yakapetwa kaviri, iyo Ising kudzivirira kubva kunze kwemagineti minda inonyangarika. "Izvi zvinoitika nekuda kwekuchinja kwekudyidzana pakati pematanho maviri." Zvisinei, munda wemagetsi unogona kudzorera kudzivirira. "Chiyero chekudzivirira chinova basa rekuti iwe wakasimba sei gedhi mudziyo."

Cooper pairs

Kunze kwekugadzira superconducting transistor, Iwe nevamwe vake vakaita chimwe chicherechedzo chinokatyamadza. Muna 1964, imwe superconducting nyika yakafanotaurwa kuvapo, inonzi FFLO state (yakatumidzwa zita remasayendisiti akafanotaura: Fulde, Ferrell, Larkin naOvchinnikov). Mune superconductivity, maerekitironi anofamba ari maviri maviri akatarisana. Sezvo ivo vachifamba nekumhanya kwakafanana, maCooper pairs ane yakazara kinetic yekumhanya ye zero. Asi munharaunda yeFFLO, pane mutsauko mudiki wekumhanya uye saka kinetic kasi haisi zero. Kusvika pari zvino, nyika iyi haina kumbobvira yakadzidzwa zvakanaka mukuyedza.

"Takasangana zvinenge zvese zvinodiwa kuti tigadzirire mamiriro eFFLO mumudziyo wedu," anodaro Ye. "Asi nyika haina kusimba uye inokanganiswa zvakanyanya nekusvibiswa kuri pamusoro pezvinhu zvedu. Saka, tichada kudzokorora zviyedzo nemasampuli akachenesa. "

Nebilayer yakamiswa yemolybdenum disulfide, Ye nevabatsiri mune zvese zvinongedzo zvinodiwa pakudzidza mamwe ma superconducting states. "Iyi isayenzi yakakosha zvechokwadi inogona kutiunzira shanduko yemafungiro."