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<div class="csl-entry">MORIYAMA K., MURAKAWA J., KANAGAWA H., Michioka C., UEDA H., MICHOR H., & Yoshimura K. (2022). Ferromagnetic Spin Fluctuation in the Itinerant-Electron Magnetic Compounds RCo₉Si₄ (R = Y, La). <i>粉体および粉末冶金 = Funtai Oyobi Funmatsuyakin = Journal of the Japan Society of Powder and Powder Metallurgy</i>, <i>69</i>(11), 467–474. https://doi.org/10.2497/jjspm.69.467</div>
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dc.identifier.issn
0532-8799
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/139261
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dc.description.abstract
Ferromagnetic spin fluctuations in itinerant-electron magnetic compounds RCo₉Si₄ (R = Y, La) were investigated by using magnetization and 59Co-NMR measurements. YCo₉Si₄ is an itinerant ferromagnet, while LaCo₉Si₄ is a nearly ferromagnetic metal. In YCo₉Si₄, the field dependence of the magnetization is well described by Takahashi’s spin-fluctuation theory for weak itinerant ferromagnets. In both YCo₉Si₄ and LaCo₉Si₄, the magnetic susceptibility, the Knight Shift and 1/T₁T show a similar temperature dependence, which suggests that the ferromagnetic spin fluctuation is dominant in these compounds. The difference in the magnetic ground state of these compounds is possibly attributed to the fact that the energy scale of the ferromagnetic spin fluctuation in LaCo₉Si₄ is larger than that in YCo₉Si₄.
en
dc.language.iso
ja
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dc.publisher
Funtai Funmatsu Yakin Kyokai
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dc.relation.ispartof
粉体および粉末冶金 = Funtai Oyobi Funmatsuyakin = Journal of the Japan Society of Powder and Powder Metallurgy
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dc.subject
itinerant-electron ferromagnetism
en
dc.subject
quantum critical point
en
dc.subject
spin fluctuation
en
dc.title
Ferromagnetic Spin Fluctuation in the Itinerant-Electron Magnetic Compounds RCo₉Si₄ (R = Y, La)
