Magnetism of gold nanorods probed using electron spin resonance

Yuji Inagaki, Hiroaki Yonemura, N. Sakai, Y. Makihara, Tatsuya Kawae, Sunao Yamada

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Electron spin resonance (ESR) spectroscopy has been performed for gold nanorods (AuNRs) of four different sizes covered with a diamagnetic stabilizing component, cetyltrimethylammonium bromide. ESR signals were detected in AuNRs except the largest one. Two smallest AuNRs showed an abrupt change in the temperature dependence of resonance field and line width at around 60 K, indicating ferromagnetic phase transition. In medium-size AuNRs, the resonance with a large shift was observed below 100 K. The resonance field shifts at the lowest temperature exhibit systematic variation with the system size, which is explained by considering magnetic anisotropy for the ferromagnetic resonance.

元の言語英語
記事番号072404
ジャーナルApplied Physics Letters
109
発行部数7
DOI
出版物ステータス出版済み - 8 15 2016

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nanorods
electron paramagnetic resonance
gold
shift
ferromagnetic resonance
bromides
temperature dependence
anisotropy
spectroscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

これを引用

Magnetism of gold nanorods probed using electron spin resonance. / Inagaki, Yuji; Yonemura, Hiroaki; Sakai, N.; Makihara, Y.; Kawae, Tatsuya; Yamada, Sunao.

:: Applied Physics Letters, 巻 109, 番号 7, 072404, 15.08.2016.

研究成果: ジャーナルへの寄稿記事

Inagaki, Yuji ; Yonemura, Hiroaki ; Sakai, N. ; Makihara, Y. ; Kawae, Tatsuya ; Yamada, Sunao. / Magnetism of gold nanorods probed using electron spin resonance. :: Applied Physics Letters. 2016 ; 巻 109, 番号 7.
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