Effects of Y- and La-doping on the magnetic ordering, Kondo effect, and spin dynamics in Ce1−x M x Ru2Al10

The influence of Y- and La-substitution for Ce on the competing Kondo effect and magnetic ordering, as well as on spin dynamics in the Kondo semiconductor CeRu 2 Al 10 have been investigated by means of thermal, electronic, and magnetic properties. The parent compound CeRu 2 Al 10 is known to be a controversial antiferromagnet with high magnetic ordering temperature T 0 = 27 K. A small negative chemical pressure caused by La-doping results rapid...