The magnetoelastic paradox in GdAg2 and GdRu2Si2

Martin Rotter, M. Doerr, M. Zschintzsch, Andreas Lindbaum, Herbert Sassik, G. Behr

Research output: Contribution to journalArticle

7 Citations (Scopus)


For isotropic systems the only source of magnetostriction is believed to be the exchange striction (ES). In many cases large magnetostrictive effects have been observed in Gd3 + based systems (S = frac(7, 2), L = 0), but in no case a significant symmetry breaking lattice distortion has been found. For ferromagnetic (fm) order this is in line with the ES model. However, for antiferromagnetic (afm) large symmetry breaking distortions of the lattice are expected from theory. This contrasts to all available experimental data on several Gd-based antiferromagnets. We demonstrate examples for this magnetoelastic paradox and discuss in detail experimental evidence for GdAg2 and GdRu2 Si2.

Original languageEnglish
Pages (from-to)1383-1385
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Issue number2 SUPPL. PART 2
Publication statusPublished - Mar 2007


  • Magnetostriction


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