Rare Earth Metal Single Crystals. II. Magnetic Properties of Tm, Eu, Sm, and Yb
1968; American Institute of Physics; Volume: 39; Issue: 2 Linguagem: Inglês
10.1063/1.1656319
ISSN1520-8850
AutoresM. Schieber, S. Foner, R. Doclo, E. J. McNiff,
Tópico(s)High-pressure geophysics and materials
ResumoMagnetic-moment measurements are presented for single-crystal Tm, Eu, Sm, and Yb along principal axes. The 4.2°K data for Tm and Eu extend to 140 kG, and the Sm and Yb results, at low field, range from 4.2° to ∼300°K. Almost complete ferromagnetic alignment in Tm is attained for 140 kG along the [101̄0] direction. A value of almost 7 μB is observed. Eu is antiferromagnetic, shows a linear variation of σ vs Bo up to 140 kG (in disagreement with earlier data), and appears to be isotropic. The susceptibility for Yb shows a small isotropic paramagnetic component, possibly caused by impurities. Single-crystal data show that Sm is a uniaxial antiferromagnet with spins aligned along the c axis and TN=14°K.
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