Thermal expansion, heat capacity and magnetostriction of RAl3 (R = Tm, Yb, Lu) single crystals

TitleThermal expansion, heat capacity and magnetostriction of RAl3 (R = Tm, Yb, Lu) single crystals
Publication TypeJournal Article
Year of Publication2008
AuthorsBud'ko SL, Frederick JC, Mun ED, Canfield PC, Schmiedeshoff GM
Journal TitleJournal of Physics-Condensed Matter
Volume20
Pages025220
Date PublishedJan
Type of ArticleArticle
ISBN Number0953-8984
Accession NumberISI:000252922000027
KeywordsERAL3, growth, MAGNETIC-SUSCEPTIBILITY, metals, TMAL3, YBAL3
Abstract

We present thermal expansion and longitudinal magnetostriction data for cubic RAl3 ( R = Tm, Yb, Lu) single crystals. The thermal expansion coefficient for YbAl3 is consistent with an intermediate valence of the Yb ion, whereas the data for TmAl3 show crystal electric field contributions and have strong magnetic field dependences. de Haas-van Alphen like oscillations were observed in the magnetostriction data for YbAl3 and LuAl3, several new extreme orbits were measured and their effective masses were estimated. Specific heat data taken at 0 and 140 kOe for both LuAl3 and TmAl3 for T <= 200 K allow for the determination of a crystal electric field splitting scheme for TmAl3.

DOI10.1088/0953-8984/20/02/025220
Alternate JournalJ. Phys.-Condes. Matter