Cobalt Silicide, CoSi2

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Cobalt Silicide, CoSi2

Tus qauv tshuaj lom neeg CoSi2. Qhov hnyav molecular yog 115.11. Tsaus nti xim av orthorhombic siv lead ua. Lub ntsiab lus melting yog 1277 ℃, thiab qhov ntsuas tus txheeb ze yog 5.3. Nws tuaj yeem oxidized ntawm 1200 ℃ thiab yaig nws saum npoo;


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Cobalt disilicide
Tus qauv tshuaj lom neeg CoSi2. Qhov hnyav molecular yog 115.11. Tsaus nti xim av orthorhombic siv lead ua.
Lub ntsiab lus melting yog 1277 ℃, thiab qhov ntsuas tus txheeb ze yog 5.3. Nws tuaj yeem oxidized ntawm 1200 ℃ thiab yaig nws saum npoo;

Nws reacts nrog chlorine ntawm 300 ℃. Nws tau yaig los ntawm hydrogen fluoride, dilute thiab feeb meej nitric acid thiab sulfuric acid, thiab tseem tuaj yeem raug av qhuav los ntawm molten muaj zog alkali. Nws ua qeeb qeeb nrog kub kub concentrated hydrochloric acid. CoSi2, nrog kev tiv thaiv qis thiab zoo thermal stability, yog dav siv ua kev sib tiv tauj hauv LSI. Ntxiv mus, CoSi2 muaj cov qauv siv lead ua zoo ib yam li Si, yog li nws tuaj yeem tsim epitaxial CoSi2 / Si qauv ntawm Si substrate kawm cov interface yam ntxwv ntawm epitaxial hlau silicon. Silicide nanostructures muaj cov ntawv thov muaj peev xwm nyob rau hauv cov haujlwm ntawm nanoelectronics: semiconductor silicide nanostructures (FeSi2) tuaj yeem siv los npaj nano hluav taws xob nquag siv, uas tej zaum yuav muaj cov ntawv thov tseem ceeb hauv silicon-based nano lub teeb ci hluav taws xob; thiab nws yog xim hlau silicides (CoSi2, Nisi2) tuaj yeem siv los ua nanowires hauv quantum computers thiab txhaum tsis kam terahertz nano Circuit computers hauv lub neej yav tom ntej. Vim hais tias epitaxial silicide xov hlau tuaj yeem npaj ntawm silicon substrates, lawv cov khoom yuav raug hloov kho zoo dua li piv nrog cov hlau zoo tib yam nanowires vim tias tsis muaj ciam ciam teb; nws yog xim hlau


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