μ SR study on ferromagnetic properties of Rb clusters incorporated into zeolite A

Truong Cong Duan, Takehito Nakano, Jun Matsumoto, Ryuichi Suehiro, Isao Watanabe, Takao Suzuki, Takayuki Kawamata, Alex Amato, Francis L. Pratt, Yasuo Nozue

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We performed μ SR experiments on rubidium clusters arrayed in porous crystals of zeolite A. These clusters are known to show spontaneous magnetization of ferromagnetism at higher loading densities of Rb atoms in a previous study. The development of the internal field is observed below ≃ 4 K in the temperature dependence of zero-field μ SR spectra in the sample n = 5.8, where n is the average loading density of Rb atoms per unit cage. The Curie temperature of this sample is estimated to be ≃ 5 K from the Arrott plot analysis. The amplitude of the relaxation is large enough to indicate the magnetic ordering in the major volume of sample. The internal field is confirmed to be almost static in the longitudinal-field μ SR spectra below ≃ 4 K. Difference of the ferromagnetic properties between K and Rb clusters is also discussed from the viewpoint of μ SR study.

Original languageEnglish
Pages (from-to)634-637
Number of pages4
JournalPhysica B: Condensed Matter
Volume404
Issue number5-7
DOIs
Publication statusPublished - 2009 Apr 15
Externally publishedYes

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Keywords

  • μ SR
  • Alkali-metal cluster
  • Ferrimagnetism
  • Ferromagnetism
  • Zeolite

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Duan, T. C., Nakano, T., Matsumoto, J., Suehiro, R., Watanabe, I., Suzuki, T., ... Nozue, Y. (2009). μ SR study on ferromagnetic properties of Rb clusters incorporated into zeolite A. Physica B: Condensed Matter, 404(5-7), 634-637. https://doi.org/10.1016/j.physb.2008.11.119