Size-dependent chemical and magnetic ordering in L10-FePt nanoparticles
Size-dependent chemical and magnetic ordering in L10-FePt nanoparticles
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DOI：
10.1002/adma.200601904
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发表时间：
2006-11-17
影响因子：
29.4
通讯作者：
Liu, J. Ping
中科院分区：
文献类型：
--
作者：
Rong, Chuan-bing;Li, Daren;Liu, J. Ping
通过测量由“盐基体退火”技术制备的单分散纳米颗粒，获得了L1（0）-FePt纳米颗粒中尺寸依赖的化学和磁有序的MeCL证据。定量相关性表明，长程化学有序参数，居里温度（见图），饱和磁化强度显着下降，随着颗粒尺寸的减小。
MeCL evidence for size-dependent chemical and magnetic ordering in L1(0)-FePt nanoparticles is obtained by measuring monodisperse nanoparticles prepared by the "salt-matrix annealing" technique. Quantitative correlations show that the long-range chemicalordering parameter, Curie temperature (see figure), and saturated magnetization drop significantly with decreasing particle size.