2003/07/17 by V Hardy, V. Hardy, M R Lees +11 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Physics of Superconductivity and Magnetism #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/15/33/307
5 pages, 5 figures, accepted for publication in J. Phys.: Cond. Matt
arxiv created 2003/07/17 · openalex publication_date 2003/08/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
Specific heat measurements were carried out on the closely related spin-chain oxides Ca 3 Co 2 O 6 and Ca 3 CoRhO 6 . Both compounds consist of Ising magnetic chains that are arranged on a triangular lattice. The spin coupling along and between the chains is ferromagnetic and antiferromagnetic, respectively. Geometrical frustration is expected from the combination of these magnetic features. The present study reports that the specific heat data of these compounds exhibit similarities in the spin-freezing process at low T , whereas striking differences exist in the antiferromagnetic interchain ordering at higher T . These results are discussed in connection with previous magnetization and neutron diffraction data.