Izazinzulu ziFumana iMagnetic nanopowder ye6G Technology
I-Newswise - Izazinzulu zezinto eziphathekayo ziye zaphuhlisa indlela ekhawulezayo yokuvelisa i-epsilon iron oxide kwaye yabonisa isithembiso sayo sezixhobo zonxibelelwano zesizukulwana esilandelayo. Iimpawu zayo ezibalaseleyo zemagneti ziyenza ibe yenye yezona zinto zinqweneleka kakhulu, njengesizukulwana esizayo se-6G yezixhobo zonxibelelwano kunye nokurekhodwa kwamagnetic okuhlala ixesha elide. Umsebenzi wapapashwa kwiJenali yeMpahla yeKhemistri C, iphephancwadi leRoyal Society of Chemistry. I-iron oxide (III) yenye yezona oxides zixhaphake kakhulu eMhlabeni. Ifumaneka kakhulu njenge-mineral hematite (okanye i-alpha iron oxide, i-α-Fe2O3). Olunye uhlengahlengiso oluzinzile noluqhelekileyo yi-maghemite (okanye ukuguqulwa kwe-gamma, γ-Fe2O3). Eyangaphambili isetyenziswa kakhulu kwishishini njengebala elibomvu, kwaye le yokugqibela njengesixhobo sokurekhoda samagnetic. Ezi zilungiso zimbini azifani kuphela kwi-crystalline structure (i-alpha-iron oxide ine-hexagonal syngony kunye ne-gamma-iron oxide ine-cubic syngony) kodwa nakwiipropati zamagnetic. Ukongeza kwezi ntlobo ze-iron oxide (III), kukho izilungiso ezingaqhelekanga ezifana ne-epsilon-, i-beta-, i-zeta-, kunye neglasi. Esona sigaba sinomtsalane yi-epsilon iron oxide, ε-Fe2O3. Olu hlengahlengiso lunamandla okunyanzeliswa aphezulu kakhulu (ubuchule bezinto eziphathekayo ukuxhathisa intsimi yangaphandle yamagnetic). Amandla afikelela kwi-20 kOe kwiqondo lobushushu legumbi, elithelekiseka kwiiparamitha zemagnethi ezisekelwe kwizinto ezibizayo ezinqabileyo zomhlaba. Ngaphaya koko, izinto zifunxa ukusasazeka kwemitha ye-electromagnetic kuluhlu lwamaza ombane angaphantsi kwe-terahertz (100-300 GHz) ngempembelelo yendalo ye-ferromagnetic resonance.Ubuxhakaxhaka be-resonance enjalo yenye yeendlela zokusetyenziswa kwemathiriyeli kwizixhobo zonxibelelwano ezingenazingcingo - i-4G. umgangatho usebenzisa i-megahertz kunye ne-5G isebenzisa amashumi egigahertz. Kukho izicwangciso zokusebenzisa uluhlu lwe-sub-terahertz njengoluhlu olusebenzayo kwisizukulwana sesithandathu (6G) iteknoloji engenazintambo, elungiselelwe ukuqaliswa okusebenzayo ebomini bethu ukususela ekuqaleni kwe-2030s. Izinto ezibangelwayo zifanelekile ukuveliswa kweeyunithi zokuguqula okanye iisekethe ze-absorber kula maxesha. Umzekelo, ngokusebenzisa i-composite ε-Fe2O3 nanopowders kuya kwenzeka ukwenza iipeyinti ezifunxa amaza ombane kwaye ngaloo ndlela zikhusele amagumbi kwiimpawu ezingaphandle, kwaye zikhusele imiqondiso ekukhawuleleni ngaphandle. I-ε-Fe2O3 ngokwayo ingasetyenziswa kwizixhobo zolwamkelo lwe-6G. I-Epsilon iron oxide yindlela enqabileyo kakhulu kwaye kunzima ukuyifumana. Namhlanje, iveliswa ngamanani amancinci kakhulu, kunye nenkqubo ngokwayo ithatha inyanga. Oku, ngokuqinisekileyo, kuthintela ukusetyenziswa kwayo ngokubanzi. Ababhali bophononongo baphuhlise indlela yokwenziwa okukhawulezileyo kwe-epsilon iron oxide ekwaziyo ukunciphisa ixesha le-synthesis ukuya kusuku olunye (oko kukuthi, ukwenza umjikelo opheleleyo wamaxesha angaphezu kwama-30 ngokukhawuleza!) . Ubuchwephesha bulula ukuphinda buvelise kwakhona, bungabizi kwaye bunokuphunyezwa ngokulula kwishishini, kunye nezixhobo ezifunekayo kwi-synthesis - intsimbi kunye nesilicon - ziphakathi kwezona zinto zininzi emhlabeni. "Nangona isigaba se-epsilon-iron oxide safunyanwa ngendlela ecocekileyo kudala kakhulu, ngo-2004, asikafumani ukusetyenziswa kwemizi-mveliso ngenxa yobunzima bokwenziwa kwayo, umzekelo njengesixhobo sokurekhoda. Siye sakwazi ukwenza lula itekhnoloji kakhulu," utshilo u-Evgeny Gorbachev, umfundi we-PhD kwiSebe leSayensi yezeMathiriyeli kwiYunivesithi yaseMoscow State kunye nombhali wokuqala walo msebenzi. Isitshixo sokusetyenziswa ngempumelelo kwemathiriyeli eneempawu zokophula irekhodi kuphando kwiimpawu zazo ezisisiseko. Ngaphandle kokufundisisa nzulu, izinto eziphathekayo zinokulityalwa ngokungafanelekanga iminyaka emininzi, njengoko kuye kwenzeka ngaphezu kwesihlandlo esinye kwimbali yesayensi. Kwakuyi-tandem yezinto zenzululwazi kwiYunivesithi yaseMoscow State, eyadibanisa i-compound, kunye neengcali zefiziksi kwi-MIPT, eziye zafunda ngokubanzi, okwenza uphuhliso lube yimpumelelo.
Ixesha lokuposa: Jun-28-2021