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Title: Magnetoelectric devices and methods of using same
Authors: Or, Derek Siu-wing
Chan, Helen L. W.
Subjects: Magnetoelectric devices
Issue Date: 3-Apr-2007
Source: US Patent 7,199,495 B2. Washington, DC: US Patent and Trademark Office, 2007.
Abstract: The operational frequency of existing magnetoelectric materials having metallic or ceramic magnetostrictive materials and ceramic piezoelectric materials may be limited to a few kilohertz due to the presence of eddy-current losses in the metallic magnetostrictive phase. Further, these materials may be difficult to machine and fabricate due to their brittleness. This invention provides a magnetoelectric element including at least one set of alternative piezoelectric layer and magnetostrictive composite layer. The magnetostrictive composite layer includes at least one magnetostrictive material dispersed in first concentrated zones within a first polymer matrix, wherein all of said concentrated zones are orientated along a first direction. (See PDF file for details of the abstract.)
Rights: Assignee: The Hong Kong Polytechnic University.
Type: Patent
Appears in Collections:Patents of PolyU
AP Patents

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