Electronic characterization of alkali ruthenium hollandites: KRu 4O8, RbRu4O8 and Cs 0.8Li0.2Ru4O8

M. L. Foo, Wei Li Lee, T. Siegrist, G. Lawes, A. P. Ramirez, N. P. Ong, R. J. Cava

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Transport, specific heat, and magnetic measurements have been performed on three alkali hollandites: KRu4O8, RbRu4O 8, and a newly synthesized Cs analog, Cs0.8Li 0.2Ru4O8, which was determined to have space group I4/m (#87) and lattice parameters, a = 10.0850(4) and c = 3.12180(20). In contrast to the ruthenium perovskites, which display a wide range of electrical and magnetic behavior, the alkali hollandites are simple paramagnetic metals.

Original languageEnglish (US)
Pages (from-to)1663-1670
Number of pages8
JournalMaterials Research Bulletin
Issue number11
StatePublished - Sep 1 2004

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


  • A. Oxides
  • C. X-ray diffraction
  • D. Electrical properties
  • D. Magnetic properties
  • D. Specific heat


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