Strategies to perform magnetization reversals in ferromagnets

Ketterson, John B.; Garg, Anupam K.; Lim, Jinho; Zhang, Zhaohui

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Title: Strategies to perform magnetization reversals in ferromagnets

Abstract

Systems and methods for reversing a magnetization in a ferromagnet include a nanometer-scale cylindrical ferromagnetic sample having a height to diameter aspect ratio on the order of 2 or greater. A temporally-varying external field comprising an r.f. Pi pulse is applied to the ferromagnetic sample to cause a precession magnetization vector inclined at an angle with respect to the longest axis of the ferromagnetic sample to continuously rotate around the longest axis. One or more parameters of the temporally-varying external field is continuously adjusted based on at least magnetization dynamics of the ferromagnetic sample and/or an angular dependence of a precession frequency of the ferromagnetic sample.

Inventors:: Ketterson, John B.; Garg, Anupam K.; Lim, Jinho; Zhang, Zhaohui

Issue Date:: 2023-04-04

Research Org.:: Northwestern Univ., Evanston, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1998264

Patent Number(s):: 11621111

Application Number:: 17/483,405

Assignee:: Northwestern University (Evanston, IL)

DOE Contract Number:: SC0014424

Resource Type:: Patent

Resource Relation:: Patent File Date: 09/23/2021

Country of Publication:: United States

Language:: English

Citation Formats


                    Ketterson, John B., Garg, Anupam K., Lim, Jinho, and Zhang, Zhaohui. Strategies to perform magnetization reversals in ferromagnets.  United States: N. p., 2023. 
        Web.

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                    Ketterson, John B., Garg, Anupam K., Lim, Jinho, & Zhang, Zhaohui. Strategies to perform magnetization reversals in ferromagnets.  United States.

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                    Ketterson, John B., Garg, Anupam K., Lim, Jinho, and Zhang, Zhaohui. Tue .  
        "Strategies to perform magnetization reversals in ferromagnets".  United States.  https://www.osti.gov/servlets/purl/1998264.

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@article{osti_1998264,

  title        = {Strategies to perform magnetization reversals in ferromagnets},

  author       = {Ketterson, John B. and Garg, Anupam K. and Lim, Jinho and Zhang, Zhaohui},

  abstractNote = {Systems and methods for reversing a magnetization in a ferromagnet include a nanometer-scale cylindrical ferromagnetic sample having a height to diameter aspect ratio on the order of 2 or greater. A temporally-varying external field comprising an r.f. Pi pulse is applied to the ferromagnetic sample to cause a precession magnetization vector inclined at an angle with respect to the longest axis of the ferromagnetic sample to continuously rotate around the longest axis. One or more parameters of the temporally-varying external field is continuously adjusted based on at least magnetization dynamics of the ferromagnetic sample and/or an angular dependence of a precession frequency of the ferromagnetic sample.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2023},

  month        = {4}

}

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Review and prospects of magnonic crystals and devices with reprogrammable band structure
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Similar Records

Title: Strategies to perform magnetization reversals in ferromagnets

Abstract

Citation Formats

Large-angle magnetization dynamics measured by time-resolved ferromagnetic resonance journal, March 2006

The Principles of Nuclear Magnetism journal, November 1961

Physical principles of microwave assisted magnetic recording journal, June 2014

Layer-Selective Switching of a Double-Layer Perpendicular Magnetic Nanodot Using Microwave Assistance journal, January 2016

The theory of ferromagnetic resonance at high signal powers journal, January 1957

Instability in the Motion of Ferromagnets at High Microwave Power Levels journal, December 1955

Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field journal, October 2017

Nutation Spectroscopy of a Nanomagnet Driven into Deeply Nonlinear Ferromagnetic Resonance journal, November 2019

Magnetization reversal in the anisotropy-dominated regime using time-dependent magnetic fields journal, December 2006

Origin and Use of Instabilities in Ferromagnetic Resonance journal, March 1958

Direct detection of multiple backward volume modes in yttrium iron garnet at micron scale wavelengths journal, January 2019

Physical Conditions for Ferromagnetic Resonance journal, October 1956

Variable-Frequency Magnetoresistive Effective Element and Oscillator, Detector, and Filter Using the Same patent-application, April 2018

Time-dependent fields and anisotropy dominated magnetic media journal, April 2008

Ferromagnetic resonance in periodic particle arrays journal, October 2002

Ferromagnetic resonance spectra of permalloy nano-ellipses as building blocks for complex magnonic lattices journal, November 2019

Dynamic Micromagnetic Write Head Fields During Magnetic Recording in Granular Media journal, July 2004

Pi pulses in a ferromagnet: Simulations for yttrium iron garnet journal, June 2021

On the Theory of Ferromagnetic Resonance Absorption journal, January 1948

Magnetostatic Modes in Ferromagnetic Resonance journal, January 1957

Ballistic Demagnetizing Factor in Uniformly Magnetized Cylinders journal, December 1966

Definition of Magnetic Exchange Length journal, August 2013

Theory of spin excitations and the microwave response of cylindrical ferromagnetic nanowires journal, March 2001

Spin Echoes journal, November 1950

Electromagnetic Effects of Spin Wave Resonance in Ferromagnetic Metals journal, March 1955

Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction journal, November 2013

Magnetostatic modes of a ferromagnet slab journal, May 1961

Chirped-microwave assisted magnetization reversal journal, May 2009

Review and prospects of magnonic crystals and devices with reprogrammable band structure journal, March 2014

Demagnetizing Field in Nonellipsoidal Bodies journal, May 1965

Theory of Magnetostatic Modes in Long, Axially Magnetized Cylinders journal, June 1961

Switching spin valves using rf currents journal, May 2006

Large-amplitude coherent spin waves excited by spin-polarized current in nanoscale spin valves journal, July 2007

Microwave assisted magnetic recording technologies and related physics journal, August 2015

Shaped pulses for transient compensation in quantum-limited electron spin resonance spectroscopy journal, June 2019

Simple and approximate expressions of demagnetizing factors of uniformly magnetized rectangular rod and cylinder journal, July 1989

Magnetization Switching of a Co / Pt Multilayered Perpendicular Nanomagnet Assisted by a Microwave Field with Time-Varying Frequency journal, May 2018

Demagnetizing factors for rectangular ferromagnetic prisms journal, March 1998

Effects of Diffusion on Free Precession in Nuclear Magnetic Resonance Experiments journal, May 1954

Micromagnetics of curling configurations in magnetically soft cylinders journal, March 1979

Subnanosecond magnetization reversal of a magnetic nanoparticle driven by a chirp microwave field pulse journal, June 2018

Resonant Modes of Ferromagnetic Spheroids journal, March 1958

The Nonlinear Behavior of Ferrites at High Microwave Signal Levels journal, October 1956

Strongly coupled modes of M and H for perpendicular resonance journal, May 2018

Increased low-temperature damping in yttrium iron garnet thin films journal, May 2017

Microwave Assisted Magnetic Recording journal, January 2008

Large-angle magnetization dynamics measured by time-resolved ferromagnetic resonance
journal, March 2006

The Principles of Nuclear Magnetism
journal, November 1961

Physical principles of microwave assisted magnetic recording
journal, June 2014

Layer-Selective Switching of a Double-Layer Perpendicular Magnetic Nanodot Using Microwave Assistance
journal, January 2016

The theory of ferromagnetic resonance at high signal powers
journal, January 1957

Instability in the Motion of Ferromagnets at High Microwave Power Levels
journal, December 1955

Zero-dc-field rotation-direction-dependent magnetization switching induced by a circularly polarized microwave magnetic field
journal, October 2017

Nutation Spectroscopy of a Nanomagnet Driven into Deeply Nonlinear Ferromagnetic Resonance
journal, November 2019

Magnetization reversal in the anisotropy-dominated regime using time-dependent magnetic fields
journal, December 2006

Origin and Use of Instabilities in Ferromagnetic Resonance
journal, March 1958

Direct detection of multiple backward volume modes in yttrium iron garnet at micron scale wavelengths
journal, January 2019

Physical Conditions for Ferromagnetic Resonance
journal, October 1956

Variable-Frequency Magnetoresistive Effective Element and Oscillator, Detector, and Filter Using the Same
patent-application, April 2018

Time-dependent fields and anisotropy dominated magnetic media
journal, April 2008

Ferromagnetic resonance in periodic particle arrays
journal, October 2002

Ferromagnetic resonance spectra of permalloy nano-ellipses as building blocks for complex magnonic lattices
journal, November 2019

Dynamic Micromagnetic Write Head Fields During Magnetic Recording in Granular Media
journal, July 2004

Pi pulses in a ferromagnet: Simulations for yttrium iron garnet
journal, June 2021

On the Theory of Ferromagnetic Resonance Absorption
journal, January 1948

Magnetostatic Modes in Ferromagnetic Resonance
journal, January 1957

Ballistic Demagnetizing Factor in Uniformly Magnetized Cylinders
journal, December 1966

Definition of Magnetic Exchange Length
journal, August 2013

Theory of spin excitations and the microwave response of cylindrical ferromagnetic nanowires
journal, March 2001

Spin Echoes
journal, November 1950

Electromagnetic Effects of Spin Wave Resonance in Ferromagnetic Metals
journal, March 1955

Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
journal, November 2013

Magnetostatic modes of a ferromagnet slab
journal, May 1961

Chirped-microwave assisted magnetization reversal
journal, May 2009

Review and prospects of magnonic crystals and devices with reprogrammable band structure
journal, March 2014

Demagnetizing Field in Nonellipsoidal Bodies
journal, May 1965

Theory of Magnetostatic Modes in Long, Axially Magnetized Cylinders
journal, June 1961

Switching spin valves using rf currents
journal, May 2006

Large-amplitude coherent spin waves excited by spin-polarized current in nanoscale spin valves
journal, July 2007

Microwave assisted magnetic recording technologies and related physics
journal, August 2015

Shaped pulses for transient compensation in quantum-limited electron spin resonance spectroscopy
journal, June 2019

Simple and approximate expressions of demagnetizing factors of uniformly magnetized rectangular rod and cylinder
journal, July 1989

Magnetization Switching of a $Co / Pt$ Multilayered Perpendicular Nanomagnet Assisted by a Microwave Field with Time-Varying Frequency
journal, May 2018

Demagnetizing factors for rectangular ferromagnetic prisms
journal, March 1998

Effects of Diffusion on Free Precession in Nuclear Magnetic Resonance Experiments
journal, May 1954

Micromagnetics of curling configurations in magnetically soft cylinders
journal, March 1979

Subnanosecond magnetization reversal of a magnetic nanoparticle driven by a chirp microwave field pulse
journal, June 2018

Resonant Modes of Ferromagnetic Spheroids
journal, March 1958

The Nonlinear Behavior of Ferrites at High Microwave Signal Levels
journal, October 1956

Strongly coupled modes of M and H for perpendicular resonance
journal, May 2018

Increased low-temperature damping in yttrium iron garnet thin films
journal, May 2017

Microwave Assisted Magnetic Recording
journal, January 2008