The a khoheli a thepa ea lintho tse bonahalang tse

Ha kenngoa ka e le matla a khoheli ea ntho e itseng, tsa lona "boitšoaro bo" le mofuta oa malapeng phetoho mehaho e tla itšetleha ka lintho tse bonahalang ho tswa ho tse ntho e entsoeng. thepa eohle ea tsebahalang ka ho arotsoe ka lihlopha tse hlano ka sehloohong: paramagnetic, ferromagnetic le antiferromagnetic, ferrimagnetic le diamagnetic. Ho latela tlhophiso ena, e fapaneng matla a khoheli thepa ea boitsebiso boo. Ho fumana hore na ke eng e patiloe ka mor'a mantsoe ana, nahana ka sehlopha ka seng ka hloko.

Dintho bontša thepa ea paramagnetism, matla a khoheli e lumellang metsi ho kena tšoauoa ka e le pontšo e ntle, ho sa tsotellehe hore boleng ba ea tšimo Link khoheli eo Sepheo fellang kateng. Baemeli tsebahalang tsa sehlopha sena ke oxide e nitric le khase oksijene, alkaline-lefatše le lihlopha alkaline le ferrous letsoai.

Ea phahameng a khoheli a susceptibility positive, letšoao (1 fihla Mill.) Tlhaho ferromagnets. Ho itšetlehile ka matla a ea tšimo Link le mocheso susceptibility fapana haholo. Sa bohlokwa hape, ho tloha linako tse likaroloana tsa motheo tse sublattices fapaneng ka sebopeho sa, boleng kakaretso ea nako eo ke lefela.

Ha e le sehlooho sa eona, 'me ka ba bang ba thepa ea ka ba haufi le lintho tse bonahalang ferromagnetic. Ba kopane ke ho itšetleha phahameng tsa susceptibility tsa mocheso le matla a ea tšimo, empa ho na le ho se tšoane. The linako khoheli a kenngoa ka sublattices liathomo tse sa lekane mong ho e mong, leha ho le joalo, ho fapana le sehlopha se fetileng, ka motsotso palo yohle e nonzero. Ntho tlholeho ka magnetization itlelang feela. Le be le Puisano antiparallel sublattices. Molemo ka ho fetisisa tsejoa ferrites. Matla a khoheli thepa ya metsoako tsa sehlopha sena tse phahameng, kahoo ba ile ba ba atisa ho sebelisa ka tsebo.

Tsa thahasella ka ho khetheha e le sehlopha sa antiferromagnets. Holim 'a Cooling, dintho joalo tlase ea itseng liathomo mocheso moedi le ions ba lokisetsa ka sebopeho kristale lekhoakhoa tlhaho fetola linako tsa bona matla a khoheli, ho fumana dikamano protivoparallelnoe. A thulaganyou e fapaneng ka ho feletseng etsahala ka futhumatsang dintho - a tlalehiloeng thepa a khoheli a bath bakeng sa sehlopha se seng sa lintho tse paramagnetic. Mehlala e kenyeletsa carbonates, oxides, 'me joalo-joalo.

'Me qetellong, le diamagnetic. The thepa a khoheli a ba dintho tsa sehlopha sena se itšetlehile ka matla a maholo ea tšimo, le boleng ba susceptibility a khoheli ke negative. Haeba ntho e na le covalent tlamo e, ke "hloekileng" diamagnetic. Baemeli ba - khauta, koporo, inert likhase le tse ling tse joalo.

The thepa a khoheli a ba boitsebiso boo ba ho pharaletseng sebelisoa ka theknoloji ea kajeno. Ka mohlala, windings transformer windings qetellong ka thepa bonolo a khoheli a. Phahameng e lumellang metsi ho kena 'me magnetized ho ho tlala, esita le ka matla tlaase, bolela se moqotetsane hysteresis sekgoqetsane ka kerafo ya, hammoho le ho lahleheloa ke tse sa reng letho ka phetoho a khoheli a hore o ile a bolela ka ho boenjiniere le motlakase. Ha a khoheli a thepa ea taba tsamaisana le lintho tse bonahalang tse bonolo a khoheli, bakeng sa lihlahisoa tse sa entsoe ka e tšoauoa ka sa phallo bohlokoa ntse lekanyetsoa feela ke ho tlala. Ka liketso, sena se bolela ho ba khona ho fokotsa boholo ba potoloho a khoheli, ka tsela eo ho fokotsa sethusathuto boima. Leha ho le joalo, melemo le mosing larileng - fapanyetsana tšimo chelete Eddy maqhubu lintho tse joalo ho etsa hore futhumatsang, kahoo le ka ho sekisetsa tharollo e burdening mokhanni.

mofuta o mong oa lintho tse bonahalang - ka thata a khoheli a coercive lebotho la e bonyane 4000 amperes ka mitha. Sena se bolela hore masimo a khoheli a ba matla phahameng, ka mor'a moo e lule e lintho tse bonahalang tse thepa a khoheli, ea e-ho hlokahala hore magnetization phetoho ea ho hohela ho sa feleng.