Ua hoʻokumu nā physicists mai ka Moscow Institute of Physics and Technology me nā hoa hana mai Moscow State Pedagogical University a me ke Kulanui o Manchester i kahi mea ʻike hoʻoheheʻe terahertz koʻikoʻi ma muli o ka hopena tunneling i ka graphene. ʻO kaʻoiaʻiʻo, ua hoʻololiʻia kahi transistor tunnel hopena i kahi meaʻike, hiki ke weheʻia e nā hōʻailona "mai ka lewa", aʻaʻole i hoʻounaʻia ma o nā kaapuni maʻamau.
Hoʻoheheʻe kuʻuna. Puna kiʻi: Daria Sokol, lawelawe paʻi MIPT
ʻO ka ʻike, i hoʻokumu ʻia ma nā manaʻo o nā physicists ʻo Mikhail Dyakonov lāua ʻo Mikhail Shur i manaʻo ʻia i ka makahiki 1990, e hoʻokokoke ana i ka wā o nā ʻenehana terahertz uila. ʻO ia ke ʻano o ka wikiwiki o nā kamaʻilio uea ʻole e piʻi i nā manawa he nui, a piʻi aʻe nā radar a me nā ʻenehana palekana, radio astronomy a me nā diagnostics olakino i kahi pae hou.
ʻO ka manaʻo o ka poʻe physicists Lūkini ʻo ia ka mea i manaʻo ʻia e hoʻohana ʻia ka transistor tunnel ʻaʻole no ka hoʻonui ʻana i ka hōʻailona a me ka demodulation, akā ma ke ʻano he mea "hoʻololi iā ia iho i ka hōʻailona modulated i ke kaʻina o nā bits a i ʻole ka ʻike leo ma muli o ka pilina nonlinear. ma waena o kēia manawa a me ka uila. I nā huaʻōlelo ʻē aʻe, hiki ke hana ʻia ka hopena tunneling ma kahi pae haʻahaʻa haʻahaʻa loa ma ka puka o ka transistor, kahi e hiki ai i ka transistor ke hoʻomaka i ke au o ka tunneling (wehe) mai kahi hōʻailona nāwaliwali loa.
No ke aha ʻaʻole kūpono ka hoʻolālā maʻamau o ka hoʻohana ʻana i nā transistors? I ka neʻe ʻana i ka laulā terahertz, ʻaʻohe manawa o ka hapa nui o nā transistors e loaʻa i ka uku i koi ʻia, no laila, ʻaʻole pono ke kaapuni lekiō maʻamau me kahi mea hoʻonui hōʻailona nāwaliwali ma kahi transistor i ukali ʻia e ka demodulation. Pono e hoʻomaikaʻi i nā transistors, e hana pū ana i kahi palena, a i ʻole e hāʻawi i kahi mea ʻokoʻa loa. ʻO nā physicists Lūkini i manaʻo pololei i kēia "ē aʻe."
ʻO ka transistor tunnel Graphene ma ke ʻano he mea ʻike terahertz. Puna kiʻi: Nature Communications
"ʻO ka manaʻo o ka pane ikaika o kahi transistor tunnel i nā haʻahaʻa haʻahaʻa ua ʻike ʻia ma kahi o ʻumikūmālima mau makahiki," wahi a kekahi o nā mea kākau o ka noiʻi, ke poʻo o ke keʻena o nā optoelectronics o nā mea ʻelua-dimensional ma ka Center for Photonics. a me nā mea hana ʻelua ma MIPT, Dmitry Svintsov. "Ma mua o mākou, ʻaʻohe mea i ʻike e hiki ke hoʻohana ʻia kēia waiwai like o kahi transistor tunnel i ka ʻenehana ʻike ʻike terahertz." E like me kā ka poʻe ʻepekema i hoʻokumu ai, "inā wehe a pani maikaʻi kahi transistor i ka mana haʻahaʻa o ka hōʻailona hoʻomalu, a laila pono nō hoʻi e maikaʻi i ke kiʻi ʻana i kahi hōʻailona nāwaliwali mai ka lewa."
No ka hoʻokolohua, i wehewehe ʻia ma ka puke pai Nature Communications, ua hana ʻia kahi transistor tunnel ma ka graphene bilayer. Ua hōʻike ʻia ka hoʻokolohua ʻoi aku ka nui o ka naʻau o ka hāmeʻa ma ke ʻano tunnel i ʻoi aku ka kiʻekiʻe ma mua o ke ʻano o ka halihali maʻamau. No laila, ʻaʻole ʻoi aku ka maikaʻi o ka ʻike transistor hoʻokolohua ma mua o nā superconductor like a me nā bolometer semiconductor i loaʻa ma ka mākeke. Hōʻike ka manaʻo ʻoi aku ka maʻemaʻe o ka graphene, ʻoi aku ka kiʻekiʻe o ka naʻau, kahi i ʻoi aku ma mua o ka hiki o nā mea ʻike terahertz hou, a ʻaʻole kēia he evolution, akā he kipi i ka ʻoihana.
Source: 3dnews.ru