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: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号010904
ジャーナルJapanese journal of applied physics
59
1
DOI
出版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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