An analytic expression is derived in the real space representation for the demagnetizing factors of long stripes and finite dots of rectangular cross section. The result depends on the arrangement in corresponding superlattices of nanoparticles. The influence of the demagnetizing factors on dynamical properties of nanoparticle arrays is discussed. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
机构:Sun Yet Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
Mao, Zhongquan
Chen, Dihu
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Sun Yet Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R ChinaSun Yet Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
Chen, Dihu
He, Zhenhui
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机构:Sun Yet Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China