2004/08/19 by Chul‐Ho Lee, C. H. Lee, Hirofumi Matsuhata +11 · 71 citations
Chemistry · Materials Science · Physics and Astronomy · #Charge density wave #Chemistry #Condensed matter physics #Crystallography #Diffraction #Electrical resistivity and conductivity #Fermi surface #Iron-based superconductors research #Materials science #Metal–insulator transition #Optics #Phase transition #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Rare-earth and actinide compounds #Superlattice #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.70.153105
published in Physical Review B 70(15), 153105-1-153105-4 (American Physical Society) · 4 pages, 5 figures, Phys. Rev. B (2004) (in press)
arxiv created 2004/08/19 · openalex publication_date 2004/10/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
X-ray and electron diffraction measurements on the metal-insulator (M\text\ensuremath-I) transition compound PrRu4P12 have revealed a periodic ordering of charge density around the Pr atoms. It is found that the ordering is associated with the onset of a low temperature insulator phase. These conclusions are supported by the facts that the space group of the crystal structure transforms from Im3 to Pm3 below the M\text\ensuremath-I transition temperature and also that the temperature dependence of the superlattice peaks in the insulator phase follows the squared BCS function. The M\text\ensuremath-I transition could be originated from the perfect nesting of the Fermi surface and/or the instability of the f electrons.