TY - JOUR
T1 - Effect of core size distribution on magnetic nanoparticle harmonics for thermometry
AU - Du, Zhongzhou
AU - Sun, Yi
AU - Higashi, Oji
AU - Noguchi, Yuki
AU - Enpuku, Keiji
AU - Draack, Sebastian
AU - Janssen, Klaas Julian
AU - Kahmann, Tamara
AU - Zhong, Jing
AU - Viereck, Thilo
AU - Ludwig, Frank
AU - Yoshida, Takashi
N1 - Publisher Copyright:
© 2019 The Japan Society of Applied Physics.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - 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.
AB - 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.
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U2 - 10.7567/1347-4065/ab5c9b
DO - 10.7567/1347-4065/ab5c9b
M3 - Article
AN - SCOPUS:85079811770
SN - 0021-4922
VL - 59
JO - Japanese journal of applied physics
JF - Japanese journal of applied physics
IS - 1
M1 - 010904
ER -