Graphene inoumbwa nechikamu chimwe chete chemaatomu ecarbon akarongwa mune hexagonal lattice.Ichi chinyorwa chinochinjika zvakanyanya uye chine zvakanakisa zvemagetsi zvivakwa, zvichiita kuti chitaridzike kune akawanda maapplication-kunyanya emagetsi zvikamu.
Vatsvagiri vanotungamirwa naProfessor Christian Schönenberger kubva kuSwiss Institute of Nanoscience uye Dhipatimendi reFizikisi reYunivhesiti yeBasel vakadzidza maitiro ekushandisazvemagetsi zvinhu zvekushandisa kuburikidza mechanical kutambanudza.Kuti vaite izvi, vakagadzira dhizaini umo iyo atomi yakatetepa graphene layer inogona kutambanudzwa nenzira inodzorwa ichiyera zvinhu zvayo zvemagetsi.
Kana kumanikidzwa kunoshandiswa kubva pasi, chikamu chichakotama.Izvi zvinoita kuti iyo yakamisikidzwa graphene layer kuti irebe uye ichinje magetsi ayo.
Sandwichi pasherufu
Masayendisiti akatanga kugadzira sandwich "sandwich" ine girafu yegraphene pakati pezvikamu zviviri zveboron nitride.Izvo zvikamu zvinopihwa nemagetsi zvinosangana zvinoshandiswa kune inoshanduka substrate.
Yakachinja electronic stateVatsvakurudzi vakatanga kushandisa nzira dzemaziso kuenzanisa kutambanudza kwegraphene.Vakabva vashandisa magetsi zviyero zvekutakura kuti udzidze kuti deformation yegraphene inoshandura sei erekitironi simba.Izvi kuyerwa kunoda kuitwa paminus 269°C kuona shanduko yesimba.
Chishandiso chesimba dhayagiramu yegirafu isina kuomeswa uye b strained (yakasvibira shaded) graphene pane kwayakarerekera poindi yekuchaja (CNP). "Kureba pakati penyuclei kunobata zvakananga maitiro emagetsi ehurumende mugraphene," Baumgartnermuchidimbu zvabuda."Kana kutambanudza kuri yunifomu, chete kumhanya kweerekitironi uye simba zvinogona kuchinja. Shanduko insimba ndiro rinenge riine scalar rinogona kufanotaurwa nedzidziso, uye isu takwanisa kuratidza izvi kuburikidzamiedzo." Zvinofungidzirwa kuti mhedzisiro iyi ichatungamira mukuvandudzwa kwema sensors kana mhando nyowani dze transistors.Pamusoro pe,graphene, semuenzaniso sisitimu yezvimwe-maviri-dimensional zvinhu, yave yakakosha yekutsvagisa musoro pasi rese mukatimakore achangopfuura.
Nguva yekutumira: Jul-02-2021