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

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spin dynamics
fermions
metals
spin glass
unity
muons
electrons
predictions
temperature

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Miyazaki, M., Kadono, R., Hiraishi, M., Masuda, T., Koda, A., Kojima, K. M., ... 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

Quasi-one-dimensional spin dynamics in d-electron heavy-fermion metal Y1-xScxMn2 . / Miyazaki, Masanori; Kadono, Ryosuke; Hiraishi, Masatoshi; Masuda, Tetsuya; Koda, Akihiro; Kojima, Kenji M.; Yamazaki, Teruo; Tabata, Yoshikazu; Nakamura, Hiroyuki.

In: Journal of the Physical Society of Japan, Vol. 80, No. 6, 063707, 01.06.2011.

Research output: Contribution to journalArticle

Miyazaki, M, Kadono, R, Hiraishi, M, Masuda, T, Koda, A, Kojima, KM, 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, vol. 80, no. 6, 063707. https://doi.org/10.1143/JPSJ.80.063707
Miyazaki, Masanori ; Kadono, Ryosuke ; Hiraishi, Masatoshi ; Masuda, Tetsuya ; Koda, Akihiro ; Kojima, Kenji M. ; Yamazaki, Teruo ; Tabata, Yoshikazu ; Nakamura, Hiroyuki. / Quasi-one-dimensional spin dynamics in d-electron heavy-fermion metal Y1-xScxMn2 In: Journal of the Physical Society of Japan. 2011 ; Vol. 80, No. 6.
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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.",
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