Quasi-one-dimensional spin dynamics in d-electron heavy-fermion metal Y1-xScxMn2

Masanori Miyazaki, Ryosuke Kadono, Masatoshi Hiraishi, Tetsuya Masuda, Akihiro Koda, Kenji M. Kojima, Teruo Yamazaki, Yoshikazu Tabata, Hiroyuki Nakamura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Slow spin fluctuations (v1012 s-1) observed by the muon spin relaxation technique in Yi-xScxMn2 exhibits a power law dependence on temperature (v ∝ Tα ), where the power converges asymptotically to unity (α → 1) as the system moves away from spin-glass instability with increasing Sc content x. This linear T dependence, which is common to that observed in LiV2O 4, is in line with the prediction of the 'intersecting Hubbard chains'' model for a metallic pyrochlore lattice, suggesting that the geometrical constraints to t2g bands specific to the pyrochlore structure serve as a basis of the d-electron heavy-fermion state.

Original languageEnglish
Article number063707
JournalJournal of the Physical Society of Japan
Volume80
Issue number6
DOIs
Publication statusPublished - 2011 Jun 1
Externally publishedYes

Keywords

  • Geometrical frustration
  • Heavy fermion
  • Intersecting Hubbard chains
  • Muon spin rotation
  • Quasi-1D spin dynamics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Miyazaki, M., Kadono, R., Hiraishi, M., Masuda, T., Koda, A., Kojima, K. M., Yamazaki, T., Tabata, Y., & Nakamura, H. (2011). Quasi-one-dimensional spin dynamics in d-electron heavy-fermion metal Y1-xScxMn2 Journal of the Physical Society of Japan, 80(6), [063707]. https://doi.org/10.1143/JPSJ.80.063707