Magnetic and Semiconducting Properties of Sm<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">B</mi></mrow><mrow><mn>6</mn></mrow></msub></mrow></math></span>

A. Menth; E. Buehler; T. H. Geballe

doi:10.1103/PhysRevLett.22.295

Magnetic and Semiconducting Properties of Sm $B_{6}$

A. Menth, E. Buehler, and T. H. Geballe

Phys. Rev. Lett. 22, 295 – Published 17 February 1969

Abstract

Sm $B_{6}$ has been found to show no magnetic ordering down to a temperature of 0.35°K. We interpret this to mean that the Sm ion is in its nonmagnetic divalent configuration at low temperatures and find direct evidence for the changing electronic configuration of Sm from trivalent to divalent with decreasing temperature in the observed semiconducting behavior at low temperatures.