Short-range magnetic correlations in geometrically frustrated CePdAl

DOI

Geometrically frustrated CePdAl orders antiferromagnetically below 2.7 K in an incommensurate structure. Doping Ni on the Pd site lowers in Ce(Pd,Ni)Al the ordering temperature and for a Ni content of 0.14 the transition is fully suppressed and a quantum phase transition approached with unusual low temperature properties. In a previous experiment on the parent compound CePdAl on D10 we established that 2/3 of the cerium moments exhibit long-range antiferromagnetic order, while 1/3 of the cerium moments show only short-range correlations. These short-range correlations show some peculiar temperature dependence. We want to study the momentum space dependence of these correlations and look for possible anisotropies. We ask for 5 days of beamtime on the instrument D7 to record intensity maps of reciprocal space to address our questions about the spin correlations in the frustrated heavy-fermion compound CePdAl.

Identifier
DOI https://doi.org/10.5291/ILL-DATA.5-42-298
Metadata Access https://data.ill.fr/openaire/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=10.5291/ILL-DATA.5-42-298
Provenance
Creator Wildes, Andrew; Hannaske, Ariane; Stockert, Oliver; Woitschach, Sarah; Fritsch, Veronika
Publisher Institut Laue-Langevin
Publication Year 2013
Rights OpenAccess; info:eu-repo/semantics/openAccess
OpenAccess true
Representation
Resource Type Dataset
Size 324 MB
Version 1
Discipline Particles, Nuclei and Fields