Ferromagnetic behavior and magnetic excitations in a molecular-based alternating-spin chain: Decamethylchromocenium tetracyanoethanide

P. Zhou, M. Makivic, F. Zuo, S. Zane, Joel S. Miller, A. J. Epstein

Research output: Contribution to journalArticle

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Abstract

We report the study of magnetic properties of a molecular-based alternating-spin chain: metallocenium electron-transfer salt decamethylchromocenium tetracyanoethanide, [CrCp2*] [TCNE]. We give a modified spin-wave theory for the Heisenberg alternating-spin chains. The low-field susceptibility and magnetization data agree with the theoretical results indicating that one-dimensional linear magnon excitations dominate the magnetic behavior above the three-dimensional ordering temperature. Strong ferromagnetic intrachain coupling, J9 K, is found. Unusual critical phenomena associated with lattice dimensional crossover are discussed.

Original languageEnglish (US)
Pages (from-to)4364-4367
Number of pages4
JournalPhysical Review B
Volume49
Issue number6
DOIs
StatePublished - Jan 1 1994

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ASJC Scopus subject areas

  • Condensed Matter Physics

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