Koox cilmi-baarayaal ah oo ka socda machadka Paul Scherrer (Villigen, Switzerland) iyo ETH Zurich ayaa baadhay oo xaqiijiyay hawlgalka arrin xiiso leh oo magnetism ah oo ah heerka atomiga. Dabeecada aan caadiga ahayn ee birlabka ee heerka kooxaha nanometer-ka waxaa saadaaliyay 60 sano ka hor fiisigiste Soviet iyo Mareykan Igor Ekhielevich Dzyaloshinsky. Cilmi-baadhayaasha Switzerland waxay awoodeen inay abuuraan qaabab noocan oo kale ah waxayna hadda saadaaliyeen mustaqbal ifaya iyaga, ma aha oo kaliya xalalka kaydinta, laakiin sidoo kale, si aan caadi ahayn, sida beddelka transistor-ka ee processor-yada leh nanoscale element.
Adduunkeena, cirbadda kombuyuutarku waxay had iyo jeer tilmaamtaa woqooyi, taas oo suurtogal ka dhigaysa in la ogaado jihada bari iyo galbeed. Magnet-yaasha ka soo horjeeda ee polarity-ku waxay soo jiitaan oo ay iska celiyaan magnets-ka midaysan. In microcosm ee miisaanka dhowr atamka, xaaladaha qaarkood, hababka magnetic u dhacaan si kala duwan. Marka laga hadlayo isdhexgalka muddada-gaaban ee atamka cobalt, tusaale ahaan, gobollada deriska ah ee magnetization ee u dhow atamka ku jihaysan woqooyiga ayaa u janjeedha dhanka galbeed. Haddii hanuunintu u bedesho koonfurta, markaas atamka ee gobolka deriska ah ayaa bedeli doona jihada magnetization ee dhinaca bari. Waxa muhiimka ah, atomyada kantaroolka iyo atomyada addoonta waxay ku yaalliin isla diyaarad. Markii hore, saameyn la mid ah ayaa lagu arkay kaliya qaab-dhismeedka atomiga oo si toosan loo habeeyey (mid ka sarreeya kan kale). Goobta laga maamulo iyo meelaha laga maamulo ee isla diyaarada ayaa wadada u furaysa naqshadaynta kombuyuutarada iyo naqshadaha kaydinta.
Jihada magnetization ee lakabka kantaroolka waxaa lagu beddeli karaa labada by garoonka electromagnetic iyo hadda. Isticmaalka mabaadi'da isku midka ah, transistor-yada ayaa la xakameynayaa. Kaliya marka la eego nanomagnets in qaab-dhismeedku uu ku heli karo dhiirigelin horumarinta labadaba marka la eego wax soo saarka, iyo marka la eego badbaadinta isticmaalka iyo yaraynta aagga xalalka (yaraynta miisaanka habka farsamada). Xaaladdan oo kale, aagagga magnetization-ka ee isku xiran, oo lagu xakameynayo beddelka magnetization-ka aagagga ugu muhiimsan, ayaa u shaqeyn doona sidii albaabbada.
Ifafaalaha magnetization-ka ee lammaane ah ayaa lagu muujiyay naqshadda gaarka ah ee isku dubaridka. Si taas loo sameeyo, lakabka cobalt 1,6 nm qaro weyn ayaa ku wareegsanaa kor iyo hoos by substrates: platinum ka hooseeya, iyo aluminium oxide ee kore (oo aan ku muuqan sawirka). Taas la'aanteed, magnetization waqooyi-galbeed iyo koonfur-bari ee la xidhiidha ma dhicin. Sidoo kale, ifafaalaha la helay waxay u horseedi kartaa soo bixitaanka antiferromagnets synthetic, tani waxay sidoo kale furi kartaa dariiqa tiknoolajiyada cusub ee duubista xogta.
Source: 3dnews.ru