A spin glass state in Ba 3 TiRu 2 O 9

Loi T. Nguyen, R. J. Cava

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The magnetic properties of Ba 3 TiRu 2 O 9 , whose crystal structure is based on stacked triangular planar lattices of M 2 O 9 dimers and single MO 6 octahedra, are reported. The system is magnetically disturbed by a substantial amount of Ti/Ru chemical disorder. The Weiss temperature and effective magnetic moment were found to be −29.5 K and 1.82 μ B /f.u. respectively, and a bifurcation in the zero field cooled and field cooled magnetic susceptibility is observed below 4.7 K, suggesting that this is a compositionally-disordered spin-glass system. The material is a semiconductor with an activation energy for charge transport of approximately 0.14 eV.

Original languageEnglish (US)
Pages (from-to)334-336
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
StatePublished - Apr 15 2019

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


  • Magnetic frustration
  • Ruthenium dimers
  • Spin glass
  • Triangular lattice


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