Possible weak magnetism in MB6 (M:Ca, Ba) probed by muon spin relaxation and muon level-crossing resonance

S. Kuroiwa, H. Takagiwa, M. Yamazawa, J. Akimitsu, A. Koda, R. Kadono, K. Ohishi, W. Higemoto, I. Watanabe

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The temperature dependence of muon spin relaxation rate exhibits a significant increase below ∼130 K in CaB6 and ∼110 K in BaB6, while no sigh of spontaneous muon precession signal under a zero field is observed. Moreover, the electric field gradient at the boron site measured by muon level-crossing resonance (μLCR) exhibits a step like change at ∼110 K in CaB6. These results suggest a change in electronic state and the associated emergence of weak random magnetism below 110-130 K in these alkaline earth hexaborides.

Original languageEnglish
Pages (from-to)12-16
Number of pages5
JournalScience and Technology of Advanced Materials
Volume7
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - Jan 2006
Externally publishedYes

Keywords

  • BaB
  • CaB
  • Hexaboride
  • Muon level-crossing resonance (μLCR)
  • Muon spin relaxation (μSR)

ASJC Scopus subject areas

  • Materials Science(all)

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    Kuroiwa, S., Takagiwa, H., Yamazawa, M., Akimitsu, J., Koda, A., Kadono, R., Ohishi, K., Higemoto, W., & Watanabe, I. (2006). Possible weak magnetism in MB6 (M:Ca, Ba) probed by muon spin relaxation and muon level-crossing resonance. Science and Technology of Advanced Materials, 7(1 SPEC. ISS.), 12-16. https://doi.org/10.1016/j.stam.2005.11.012