Preparation and physical properties of rare earth hexaborides and dodecaborides

Publisher Website
Google Scholar
Abstract
The rare earth hexaborides and dodecaborides have been prepared using a floating zone technique. The rare earth hexaborides exhibit a variety of physical properties ranging from superconductor (YB6), to typical monovalent metal (LaB6), dense Kondo system (CeB6), valence fluctuating system (SmB6), anomalous magnetism based on the narrow gap semiconductor (EuB6), and nonmagnetic narrow gap semiconductor (YbB6). From the measurements of the magnetic susceptibility, electrical resistivity, Hall effect, NMR, XPS and specific heat measurement, it is found that YbB1 2 exhibits unique behavior uncharacteritic of hitherto studied ytterbium compounds; YbB1 2 is a mixed valent compound accompanied with the formation of an energy gap. LuB1 2 is a monovalent metal similar to LaB6.

This publication has 0 references indexed in Scilit: