Effect of core size distribution on magnetic nanoparticle harmonics for thermometry

Zhongzhou Du, Yi Sun, Oji Higashi, Yuki Noguchi, Keiji Enpuku, Sebastian Draack, Klaas Julian Janssen, Tamara Kahmann, Jing Zhong, Thilo Viereck, Frank Ludwig, Takashi Yoshida

研究成果: ジャーナルへの寄稿記事

抜粋

We investigated the effect of core size distribution on the performance of a magnetic nanoparticle thermometer (MNPT) in circumstances when Neél relaxation dominates the dynamic behavior of particles. Numerical simulations revealed the effects of excitation field strength and core size distribution on the temperature dependence of the amplitude and phase of harmonics. In MNPT, the field dependences of sensitivity deviated significantly from those calculated when the core size distribution was neglected. These simulation results were compared with those from experiments for which reasonable agreement was obtained. These findings must be carefully considered when designing an optimal MNPT system.

元の言語英語
記事番号010904
ジャーナルJapanese journal of applied physics
59
発行部数1
DOI
出版物ステータス出版済み - 1 1 2020

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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    Du, Z., Sun, Y., Higashi, O., Noguchi, Y., Enpuku, K., Draack, S., Janssen, K. J., Kahmann, T., Zhong, J., Viereck, T., Ludwig, F., & Yoshida, T. (2020). Effect of core size distribution on magnetic nanoparticle harmonics for thermometry. Japanese journal of applied physics, 59(1), [010904]. https://doi.org/10.7567/1347-4065/ab5c9b