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Title: Size-Controlled Ex-nihilo Ferromagnetism in Capped CdSe Quantum Dots
Authors: 國立臺灣師範大學化學系
M. S. Seehra
P. Dutta
S. Neeleshwar
Y.-Y. Chen
C.-L. Chen
C.-L. Dong
S.-W. Chou
Chia-Chun Chen
C.-L. Chang
Issue Date: 5-May-2008
Publisher: Wiley-VCH Verlag
Abstract: Hysteresis loops in D = 1.8 nm CdSe-TOPO nanoparticles show ferromagnetism at 5 K and 300 K. Charge transfer from Cd to the Cd–O bond is shown by arrow in the Fourier transforms amplitudes of the EXAFS k2χ data at the Cd K-edge in the smaller 2.8 and 4.1 nm particles. This charge transfer produces holes in the Cd 4d band yielding ferromagnetism varying as 1/D with magnetic moment µ = 0.0075 µB per Cd surface atom.
ISSN: 0935-9648
Other Identifiers: ntnulib_tp_C0301_01_051
Appears in Collections:教師著作

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