2004/07/21 by T. Naka, Takashi Naka, Л. А. Пономаренко +7
Materials Science · Physics and Astronomy · #Magnetic Properties of Alloys #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.71.024408
published as Phys. Rev. B, 71, 024408 (2005) · 14 pages, 9 figures submitted to Phys. Rev. B
arxiv created 2004/07/21 · openalex publication_date 2005/01/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We report magnetic susceptibility and electrical resistivity measurements under hydrostatic pressure up to 2 GPa on single-crystalline PrCu2, which exhibits the pressure-induced Van Vleck paramagnet-to-antiferromagnet transition at 1.2 GPa. The measured anisotropy in the susceptibility shows that the ordered 4f moments lie in the ac plane in the pressure-induced magnetic state. We propose that remarkable pressure effects on the susceptibility and resistivity are due to changes in the quadrupolar state of O22 and/or O20 under pressure. We present a simple analysis in terms of the singlet-singlet model.