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Dynamic control of spin states in interacting magnetic elements

United States Patent

8,854,871
October 7, 2014
View the Complete Patent at the US Patent & Trademark Office
Dynamic Control of Spin Sates in Interacting Magnetic Elements
A method for the control of the magnetic states of interacting magnetic elements comprising providing a magnetic structure with a plurality of interacting magnetic elements. The magnetic structure comprises a plurality of magnetic states based on the state of each interacting magnetic element. The desired magnetic state of the magnetic structure is determined. The active resonance frequency and amplitude curve of the desired magnetic state is determined. Each magnetic element of the magnetic structure is then subjected to an alternating magnetic field or electrical current having a frequency and amplitude below the active resonance frequency and amplitude curve of said desired magnetic state and above the active resonance frequency and amplitude curve of the current state of the magnetic structure until the magnetic state of the magnetic structure is at the desired magnetic state.
Jain; Shikha (San Jose, CA), Novosad; Valentyn (Lemont, IL)
U.S. Department of Energy (Washington, DC)
14/ 082,260
November 18, 2013
GOVERNMENT INTERESTS The United States Government has rights in this invention pursuant to Contract No. DE-AC02-06CH11357, between the U.S. Department of Energy (DOE) and Argonne LLC.