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Title: Dynamic control of spin states in interacting magnetic elements

Patent ·
OSTI ID:1159981

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.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
8,854,871
Application Number:
14/082,260
OSTI ID:
1159981
Resource Relation:
Patent File Date: 2013 Nov 18
Country of Publication:
United States
Language:
English

References (21)

Intentional asymmetry imposed during fabrication and/or access of magnetic tunnel junction devices patent August 2000
Magnetoresistance random access memory patent November 2003
Magnetic memory elements using 360° walls patent June 2005
Magnetic memory, magnetic memory array, method for fabricating a magnetic memory, method for recording in a magnetic memory and method for reading out from a magnetic memory patent September 2005
Magnetic ring unit and magnetic memory device patent February 2006
Magnetic memory array, method for recording in a magnetic memory array and method for reading out from a magnetic memory array patent August 2006
Ferroelectric nanostructure having switchable multi-stable vortex states patent September 2009
Method for the detection of a magnetic field utilizing a magnetic vortex patent April 2010
Exchange-bias based multi-state magnetic memory and logic devices and magnetically stabilized magnetic storage patent July 2010
Vortex spin momentum transfer magnetoresistive device patent January 2011
Magnetic materials having superparamagnetic particles patent February 2011
Core-rotating element of ferromagnetic dot and information memory element using the core of ferromagnetic dot patent May 2011
Electronic devices based on current induced magnetization dynamics in single magnetic layers patent July 2011
Method of generating strong spin waves and spin devices for ultra-high speed information processing using spin waves patent April 2012
Magnetic vortex storage device patent March 2013
Transmitting video between two stations in a wireless network patent May 2013
Magnetic storage element, magnetic storage device, and magnetic memory patent January 2014
Spin valve element, method of driving the same, and storage device using the same patent February 2014
Spin-valve recording element and storage device patent March 2014
Magnetic Memory Cell patent-application May 2013
Unified System Networking with CEE-PCIE Tunneling patent-application June 2014

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