Composition dependence of the coercivity in magnetic nanoparticles suitable for magnetic hyperthermia

被引：13

作者：

Apostolova, I. ^{[2
]}

Wesselinowa, J. M. ^{[1
]}

机构：

[1] Univ Sofia, Dept Phys, Sofia 1164, Bulgaria

[2] Univ Forestry, Fac Forest Ind, Sofia 1756, Bulgaria

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2009年 / 246卷 / 08期

关键词：

FEPT NANOPARTICLES; FERRITE NANOPARTICLES; NI; SIZE; HYDROLYSIS; FERROFLUID; SHELL; CO;

D O I：

10.1002/pssb.200945019

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 [凝聚态物理];

摘要：

Based on the Heisenberg model including single-site uniaxial anisotropy using a Green's function technique we have studied the influence of size shape and composition effects on the coercieve, field H-c, saturation magnetization M-s, and Curie temperature T-c of ferromagnetic nanoparticles. We have discussed various possibilities which could lead to decreasing of H-c, and T-c, and increasing of M-s. It is shown that spherical Ni-Pd, Fe-Pt and Zn-Co-ferrite nanoparticles with d approximate to 10 nm are suitable for magnetic hyperthermia applications. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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收藏

页码：1925 / 1930

页数：6

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