I-henorth pole ichazwa njengesigxobo sikazibuthe okuthi, lapho sikhululekile ukujikeleza, sifune isigxobo sasenyakatho somhlaba.Ngamanye amazwi, isigxobo esisenyakatho sikakazibuthe siyofuna isigxobo sasenyakatho somhlaba.Ngokufanayo, isigxobo esiseningizimu sikazibuthe sifuna isigxobo esiseningizimu yomhlaba.
Ozibuthe besimanje besimanje benziwa ngama-alloys akhethekile atholwe ngocwaningo ukuze akhe omazibuthe abangcono kakhulu.Imindeni ejwayeleke kakhulu yezinto zikazibuthe ezihlala unomphela namuhla yenziwe nge-aluminium-nickel-cobalt (alnicos), i-strontium-iron (i-ferrites, eyaziwa nangokuthi i-ceramics), i-neodymium-iron-boron (ozibuthe baka neodymium, noma "ozibuthe abakhulu"). , kanye ne-samarium-cobalt-magnet-material.(Imindeni ye-samarium-cobalt kanye ne-neodymium-iron-boron yaziwa ngokuhlanganyela ngokuthi i-rare-earths).
Gxila ekunikezeni izixazululo zikamazibuthe iminyaka engama-30