Borides Ytterbium dodecaboride (YbB12) is a crystalline material that has been studied to understand various electronic and structural properties of many chemically related substances. It is a Kondo insulator. It is a quantum material; under normal conditions, the interior of the bulk crystal is an insulator whereas the surface is highly conductive. Among the rare earth elements, ytterbium is one of the few that can form a stable dodecaboride, a property attributed to its comparatively small atomic radius.
borides ytterbium dodecaboride (ybb12) is a crystalline material that has been studied to understand various electronic and structural properties of many chemically related substances it is a kondo insulator it is a quantum material; under normal conditions the interior of the bulk crystal is an insulator whereas the surface is highly conductive among the rare earth elements ytterbium is one of the few that can form a stable dodecaboride a property attributed to its comparatively small atomic radius