Journal
PHYSICAL REVIEW B
Volume 89, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.89.054416
Keywords
-
Funding
- Deutsche Forschungsgemeinschaft [FOR 960]
- National Science Foundation [PHYS-1066293]
Ask authors/readers for more resources
In the antiferromagnetic (AF) heavy-fermion system CePdAl the magnetic Ce ions form a network of equilateral triangles in the (001) plane, similar to the kagome lattice, with one third of the Ce moments not participating in the long-range order. The Neel temperature T-N = 2.7 K is reduced upon replacing Pd by Ni in CePd1-xNixAl, with T-N -> 0 for x = 0.144, where the specific heat C exhibits a C/T proportional to - log T dependence. Within the Hertz-Millis-Moriya model of quantum criticality, this behavior might indicate 2D critical antiferromagnetic fluctuations arising from the decoupling of 3D magnetic order by frustration. On the other hand, the simultaneous presence of Kondo effect and geometric frustration might entail a different route to quantum criticality.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available