DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2011 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 44: Poster Session Correlated Electrons

TT 44.11: Poster

Thursday, March 17, 2011, 10:00–13:00, P1

27Al NMR/NQR study on RRu2Al10 (R: La, Ce) and RFe2Al10 (R: Y, Yb). — •Panchanana Khuntia1, Michael Baenitz1, Rajib Sarkar1, André Strydom2, and Frank Steglich11Max-Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany — 2Physics Department APK, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa

Ternary orthorhombic aluminides of RT2Al10 type (R:Ce, Yb, T: Fe, Ru, Os) are currently attracting much interest because of a number of exotic properties such as anomalously high magnetic ordering temperatures in CeRu2Al10 [1] and CeOs2Al10, and strongly hybridized Kondo insulating state in CeFe2Al10. The Fe-Al systems are of special interest because YFe2Al10 is claimed being located close to a Fe-based ferromagnetic instability at very low temperature [2]. Here pronounced non Fermi liquid (NFL) phenomena are observed. For YbRh2Si2 this NFL behaviour is associated to strong ferromagnetic fluctuations (see 29Si NMR in [3]). Our spin relaxation study on YFe2Al10 gives strong evidence for Fe based ferromagnetic fluctuations evolving towards low temperature in small fields. YbFe2Al10 is a weak Kondo coupled heavy fermion system where no traces of Fe-magnetism could be found [2].
Physica B, 404(2009)2981
Phys. Stat. Solidi 4, No. 12, 356-358(2010)
PRL 89, 107202(2010)

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2011 > Dresden