Magnetic anisotropy and geometrical frustration in the Ising spin-chain system Sr5Rh4O12

M. Ge, O. B. Korneta, T. F. Qi, S. Parkin, P. Schlottmann, G. Cao

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2 Scopus citations

Abstract

A structural and thermodynamic study of the newly synthesized single crystal Sr5Rh4O12 is reported. Sr 5Rh4O12 consists of a triangular lattice of spin-chains running along the c-axis. It is antiferromagnetically ordered below 23 K with the intrachain and interchain coupling being ferromagnetic (FM) and antiferromagnetic (AFM), respectively. There is strong evidence for an Ising character in the interaction and geometrical frustration that causes incomplete long-range AFM order. The isothermal magnetization exhibits two steplike transitions leading to a ferrimagnetic state at 2.4 T and a FM state at 4.8 T, respectively. Sr5Rh4O12 is a unique frustrated spin-chain system ever found in 4d and 5d-based materials without a presence of an incomplete 3d-electron shell.

Original languageEnglish
Article number07E164
JournalJournal of Applied Physics
Volume109
Issue number7
DOIs
StatePublished - Apr 1 2011

Bibliographical note

Funding Information:
G.C. is grateful to Prof. J.W. Brill for very useful discussions. This work was supported by NSF grants DMR-0240813, DMR-0552267 and DOE grant DE-FG02-98ER45707.

ASJC Scopus subject areas

  • General Physics and Astronomy

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