Cov khoom tseem ceeb ntawm cov hlau tsis tshua muaj hauv ntiaj teb

Cov luster ntawm cov hlau tsis tshua muaj hauv ntiaj teb yog nruab nrab ntawm cov nyiaj thiab hlau. Cov ntsiab lus impurity muaj qhov cuam tshuam loj rau lawv cov khoom, yog li cov khoom siv lub cev tau sau tseg hauv cov ntaub ntawv feem ntau muaj qhov sib txawv loj. Lanthanum yog superconductor ntawm 6K. Feem ntau cov hlau tsis tshua muaj hauv ntiaj teb nthuav tawm paramagnetism, thiab gadolinium muaj zog ferromagnetism dua li hlau ntawm 0 degree . Terbium, dysprosium, holmium, erbium, thiab lwm yam kuj muaj ferromagnetism ntawm qhov kub thiab txias. Cov ntsiab lus qis melting ntawm lanthanum thiab cerium thiab vapor pressures ntawm samarium, europium, thiab ytterbium nthuav tawm qhov sib txawv tseem ceeb hauv lub cev ntawm cov hlau tsis tshua muaj hauv ntiaj teb. Lub thermal neutron absorption hla ntu ntawm samarium, europium, thiab gadolinium yog loj dua li cadmium thiab boron, uas yog dav siv los tswj cov ntaub ntawv hauv nuclear reactors. Cov hlau tsis tshua muaj hauv ntiaj teb muaj plasticity, nrog samarium thiab ytterbium yog qhov zoo tshaj plaws. Tsuas yog ytterbium, yttrium pawg tsawg lub ntiaj teb muaj zog dua li cov pawg cerium tsawg.