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Structure And Physical Properties Of Srniru5O11 Single Crystals: An R-Type Ferrite Based On Ordered Kagome Nets, L. Shlyk, Lance E. De Long, R. Niewa

Physics and Astronomy Faculty Publications

Single crystals of the R-type ferrite SrNiRu₅O₁₁ were grown from a chloride flux. The hexagonal crystal structure contains ruthenium located on distorted kagome nets. The low-temperature dc magnetic susceptibilities (χ_⊥ and χ_∥, perpendicular and parallel to the c axis, respectively) diverge as T^−0.3, and do not exhibit any indication of long-range magnetic order down to 4.5 K. The electrical resistivity varies as T^1.6 below 40 K, which is typical of non-Fermi liquids, and may originate from a competition between residual magnetic interactions among Ni²⁺ (S = 1) spins …