Qhov Tseem Ceeb Qhov txawv - Ferromagnetism vs Ferrimagnetism
Cov khoom sib nqus tuaj yeem muab cais ua ntau pawg xws li ferromagnetic thiab ferrimagnetic raws li lawv cov khoom sib nqus. Qhov sib txawv tseem ceeb ntawm ferromagnetism thiab ferrimagnetism yog qhov Curie kub ntawm ferromagnetic cov ntaub ntawv yog siab dua li cov ntaub ntawv ferrimagnetic.
Cov ntaub ntawv ferromagnetic feem ntau yog hlau lossis hlau alloys. Ferrimagnetic cov ntaub ntawv yog hlau oxides xws li magnetite.
Ferromagnetism yog dab tsi?
Ferromagnetism tuaj yeem pom hauv cov hlau thiab hlau alloys xws li hlau, cob alt, npib tsib xee thiab lawv cov alloys. Ferromagnetism yog cov cuab yeej ntawm cov khoom raug nyiam rau cov hlau nplaum. Cov ntaub ntawv ferromagnetic no tuaj yeem hloov mus ua cov hlau nplaum ruaj khov.
Qhov kub ntawm Curie ntawm cov khoom siv hlau nplaum yog qhov kub ntawm qhov atoms ntawm cov khoom pib vibrate thiab tshem tawm ntawm cov hlau nplaum. Curie kub ntawm cov ntaub ntawv ferromagnetic yog siab heev.
Daim duab 01: Kev sib xyaw ntawm Atomic Moments hauv Ferromagnetic Materials
Lub sijhawm atomic ntawm cov khoom siv ferromagnetic muaj kev sib cuam tshuam zoo piv rau cov ntaub ntawv paramagnetic thiab cov ntaub ntawv diamagnetic. Cov kev sib cuam tshuam no yog tshwm sim los ntawm kev sib pauv hluav taws xob ntawm cov atoms. Thaum cov khoom raug muab tso rau hauv qhov chaw sib nqus, lub sijhawm atomic sib dhos hauv cov lus qhia sib luag thiab tsis sib luag. Hauv cov ntaub ntawv ferromagnetic, cov kev sib dhos no taw qhia rau tib qho kev taw qhia, yog li tsim cov hlau nplaum muaj zog. Cov khoom siv ferromagnetic ib txwm qhia tau hais tias muaj ob tus yam ntxwv;
- Spontaneous magnetization
- High curie kub
Ferrimagnetism yog dab tsi
Ferrimagnetism yog cov khoom sib nqus ntawm cov ntaub ntawv uas muaj lub sijhawm atomic ua raws cov lus qhia. Lub sijhawm tawm tsam hauv cov ntaub ntawv no tsis sib npaug. Yog li, cov khoom siv tau spontaneously tau magnetized. Ib yam khoom paub zoo uas qhia tau hais tias ferrimagnetism yog magnetite. Feem ntau ntawm cov hlau oxides qhia ferrimagnetism vim cov tebchaw muaj cov qauv siv lead ua nyuaj.
Lub sijhawm sib nqus lossis lub sijhawm atomic hauv cov khoom siv ferrimagnetic yog nyob rau hauv cov lus qhia uas ua rau lub sijhawm sib nqus raug tshem tawm. Txawm li cas los xij, cov ntaub ntawv no nyiam tsim cov hlau nplaum vim tias lub sijhawm atomic tsis sib npaug.
Daim duab 02: Kev Sib Koom Tes ntawm Atomic Moments hauv Ferrimagnetic Materials
Ferrimagnetic cov ntaub ntawv muaj qhov kub Curie qis dua thaum piv rau cov ntaub ntawv ferromagnetic. Thaum xav txog kev sib haum xeeb ntawm atomic moments ntawm ferrimagnetic cov ntaub ntawv, qee lub sij hawm sib haum mus rau tib qho kev taw qhia thaum lawv feem ntau ua raws li cov lus qhia rov qab.
Qhov txawv ntawm Ferromagnetism thiab Ferrimagnetism yog dab tsi?
Ferromagnetism vs Ferrimagnetism |
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| Ferromagnetism yog cov cuab yeej ntawm cov khoom raug nyiam rau cov hlau nplaum. | Ferrimagnetism yog cov khoom sib nqus ntawm cov ntaub ntawv uas muaj lub sijhawm atomic ua raws cov lus qhia tawm. |
| Curie Temperature | |
| Curie kub ntawm cov ntaub ntawv ferromagnetic yog siab dua thaum piv rau cov khoom ferrimagnetic. | Curie kub ntawm cov ntaub ntawv ferrimagnetic qis dua thaum piv rau cov khoom ferromagnetic. |
| Kev sib haum xeeb ntawm Atomic Moments | |
| Lub sijhawm atomic tau ua raws tib txoj hauv kev hauv cov ntaub ntawv ferromagnetic. | Lub sijhawm atomic ntawm cov khoom siv ferromagnetic yog ua raws li cov lus qhia. |
| Piv txwv | |
| Hlau xws li hlau, cob alt, npib tsib xee thiab lawv cov alloys yog cov qauv zoo rau cov khoom siv ferromagnetic. | Iron oxides xws li magnetite yog cov piv txwv zoo rau cov ntaub ntawv ferrimagnetic. |
Summary – Ferromagnetism vs Ferrimagnetism
Cov khoom tuaj yeem muab faib ua ntau pawg raws li lawv cov khoom sib nqus. Cov ntaub ntawv ferromagnetic thiab cov ntaub ntawv ferrimagnetic yog ob hom. Qhov txawv ntawm ferromagnetism thiab ferrimagnetism yog qhov Curie kub ntawm ferromagnetic cov ntaub ntawv yog siab dua li cov ntaub ntawv ferrimagnetic.
