Gulu la ofufuza a Paul Scherrer Institute (Villigen, Switzerland) ndi ETH Zurich adafufuza ndikutsimikizira ntchito ya chodabwitsa chosangalatsa cha maginito pamlingo wa atomiki. Makhalidwe ofananirako a maginito pamlingo wamagulu a nanometer adanenedweratu zaka 60 zapitazo ndi wasayansi waku Soviet ndi America Igor Ekhielevich Dzyaloshinsky. Ochita kafukufuku ku Switzerland adatha kupanga mapangidwe oterowo ndipo tsopano amaneneratu za tsogolo lowala kwa iwo osati njira zosungirako zokha, komanso, modabwitsa kwambiri, monga m'malo mwa transistors mu nanoscale processors.
M'dziko lathu, singano ya kampasi nthawi zonse imaloza kumpoto, zomwe zimapangitsa kuti tipeze njira yopita kum'mawa ndi kumadzulo. Maginito amitundu yosiyanasiyana amakopa, ndipo maginito a unipolar amathamangitsa. Mu microcosm pamlingo wa ma atomu angapo, nthawi zina, maginito amachitika mosiyana. Pakulumikizana kwakanthawi kochepa kwa ma atomu a cobalt, mwachitsanzo, madera oyandikana nawo a magnetization pafupi ndi ma atomu akumpoto amalunjika kumadzulo. Ngati malowa asintha kupita kumwera, maatomu omwe ali pafupi nawo adzasintha mawonekedwe awo a magnetization chakum'mawa. Chofunikira ndichakuti maatomu owongolera ndi ma atomu akapolo ali mundege yomweyo. M'mbuyomu, zotsatira zofananira zinkawonedwa kokha muzinthu za atomiki zokhazikika (imodzi pamwamba pa inzake). Malo olamulira ndi malo olamulidwa mu ndege yomweyo amatsegula njira yopangira makompyuta ndi zomangamanga zosungirako.
Mayendedwe a magnetization a gawo lowongolera amatha kusinthidwa ndi gawo lamagetsi kapena pogwiritsa ntchito pano. Ma transistors amayendetsedwa pogwiritsa ntchito mfundo zomwezo. Pokhapokha ndi ma nanomagnets omwe amamanga angalandire chilimbikitso chachitukuko pokhudzana ndi zokolola komanso ndalama zogulira komanso kuchepetsa gawo la mayankho (kuchepetsa kukula kwaukadaulo). Pankhaniyi, mavavu adzakhala ntchito madera olumikizidwa magnetization, kulamulidwa ndi kusintha maginito madera waukulu.
Chodabwitsa cha maginito ophatikizana chinadziwika mwapadera kamangidwe kake. Kuti tichite zimenezi, cobalt 1,6 nm wandiweyani wosanjikiza anazunguliridwa pamwamba ndi pansi ndi magawo: platinamu pansi ndi aluminium okusayidi pamwamba (osasonyezedwa pa chithunzi). Popanda izi, kuphatikiza kumpoto chakumadzulo ndi kum'mwera chakum'mawa magnetization sikunachitike. Komanso, chodabwitsa chomwe chapezeka chingapangitse kuti pakhale ma antiferromagnets opangira, omwe angatsegulenso njira zatsopano zojambulira deta.
Source: 3dnews.ru