### 抄録

We studied the distributions of the magnetic moment and magnetic volume of magnetic nanoparticles (MNPs). These distributions were estimated by applying the singular value decomposition method to the M-H curve measured in the liquid phase. The estimated distributions were compared with a mixture of log-normal distributions, and two results agree well with each other. Using the estimated distribution of the magnetic moment, we also analyzed the M-H curve of immobilized MNPs in order to estimate the average value of the anisotropy energy constant Ku and the characteristic time τON that determines the Neel relaxation of immobilized MNPs. The values Ku and τON are estimated as 4 kJ/m^{3} and 1×10-9 s, respectively, for Resovist MNPs.

元の言語 | 英語 |
---|---|

記事番号 | 17D155 |

ジャーナル | Journal of Applied Physics |

巻 | 117 |

発行部数 | 17 |

DOI | |

出版物ステータス | 出版済み - 5 7 2015 |

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### All Science Journal Classification (ASJC) codes

- Physics and Astronomy(all)

### これを引用

*Journal of Applied Physics*,

*117*(17), [17D155]. https://doi.org/10.1063/1.4919268

**Comparison of volume distribution of magnetic nanoparticles obtained from M-H curve with a mixture of log-normal distributions.** / Sasayama, Teruyoshi; Yoshida, Takashi; Saari, M. M.; Enpuku, Keiji.

研究成果: ジャーナルへの寄稿 › 記事

*Journal of Applied Physics*, 巻. 117, 番号 17, 17D155. https://doi.org/10.1063/1.4919268

}

TY - JOUR

T1 - Comparison of volume distribution of magnetic nanoparticles obtained from M-H curve with a mixture of log-normal distributions

AU - Sasayama, Teruyoshi

AU - Yoshida, Takashi

AU - Saari, M. M.

AU - Enpuku, Keiji

PY - 2015/5/7

Y1 - 2015/5/7

N2 - We studied the distributions of the magnetic moment and magnetic volume of magnetic nanoparticles (MNPs). These distributions were estimated by applying the singular value decomposition method to the M-H curve measured in the liquid phase. The estimated distributions were compared with a mixture of log-normal distributions, and two results agree well with each other. Using the estimated distribution of the magnetic moment, we also analyzed the M-H curve of immobilized MNPs in order to estimate the average value of the anisotropy energy constant Ku and the characteristic time τON that determines the Neel relaxation of immobilized MNPs. The values Ku and τON are estimated as 4 kJ/m3 and 1×10-9 s, respectively, for Resovist MNPs.

AB - We studied the distributions of the magnetic moment and magnetic volume of magnetic nanoparticles (MNPs). These distributions were estimated by applying the singular value decomposition method to the M-H curve measured in the liquid phase. The estimated distributions were compared with a mixture of log-normal distributions, and two results agree well with each other. Using the estimated distribution of the magnetic moment, we also analyzed the M-H curve of immobilized MNPs in order to estimate the average value of the anisotropy energy constant Ku and the characteristic time τON that determines the Neel relaxation of immobilized MNPs. The values Ku and τON are estimated as 4 kJ/m3 and 1×10-9 s, respectively, for Resovist MNPs.

UR - http://www.scopus.com/inward/record.url?scp=84928920068&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84928920068&partnerID=8YFLogxK

U2 - 10.1063/1.4919268

DO - 10.1063/1.4919268

M3 - Article

AN - SCOPUS:84928920068

VL - 117

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 17

M1 - 17D155

ER -