Near-ideal (colossal) Magnetoelectricity in High-Permeability Magnetostrictive/Piezo/Fiber Laminates

Manetoelectricity is the interaction between the polarization and manetization subsystems of a solid. Giant mangeto-electric (ME) effects are known in laminate composites of magnetostrictive and piezoelectric layers, which are orders of magnitude higher than those of single phase systems. Theoretically, the longitudinally-magnetized longitudinally-poled (L-L) laminate configuration should have much higher ME effects; however, prior experimental studies have failed to find such enhancement. This invention presents an L-L configuration with near-ideal ME coupling with colossal ME effects--having more than an order of magnitude higher than the giant ME effects.

Patent Information:

App Type	Country	Serial No.	Patent No.	File Date	Issued Date	Patent Status
US Utility	*United States	11/832,564	7,771,846	8/1/2007	8/10/2010	Issued

Category(s):

Materials

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For Information, Contact:

Li Chen

Licensing Associate

Virginia Tech Intellectual Properties, Inc.

(540) 443-9217

lchen@vtip.org

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