Temperature and magnetic-field driven dynamics in artificial magnetic square ice

Drouhin, Henri-Jean; Wegrowe, Jean-Eric; Razeghi, Manijeh; Morley, Sophie A.; Stein, Aaron; Rosamond, Mark C.; Alba Venero, Diego; Hrabec, Aleš; Shepley, Philippa M.; Im, Mi-Young; Fischer, Peter; Bryan, Matthew T.; Allwood, Dan A.; Steadman, Paul; Langridge, Sean; Marrows, Christopher H.

doi:10.1117/12.2189320

Title: Temperature and magnetic-field driven dynamics in artificial magnetic square ice

Abstract

Artificial spin ices are often spoken of as being realisations of some of the celebrated vertex models of statistical mechanics, where the exact microstate of the system can be imaged using advanced magnetic microscopy methods. The fact that a stable image can be formed means that the system is in fact athermal and not undergoing the usual finite-temperature fluctuations of a statistical mechanical system. In this paper we report on the preparation of artificial spin ices with islands that are thermally fluctuating due to their very small size. The relaxation rate of these islands was determined using variable frequency focused magneto-optic Kerr measurements. We performed magnetic imaging of artificial spin ice under varied temperature and magnetic field using X-ray transmission microscopy which uses X-ray magnetic circular dichroism to generate magnetic contrast. Furthermore, we have developed an on-membrane heater in order to apply temperatures in excess of 700 K and have shown increased dynamics due to higher temperature. Due to the ‘photon-in, photon-out' method employed here, it is the first report where it is possible to image the microstates of an ASI system under the simultaneous application of temperature and magnetic field, enabling the determination of relaxation rates, coercivties, and themore »« less

Authors:: Drouhin, Henri-Jean; Wegrowe, Jean-Eric; Razeghi, Manijeh; Morley, Sophie A.; Stein, Aaron; Rosamond, Mark C.; Alba Venero, Diego; Hrabec, Aleš; Shepley, Philippa M.; Im, Mi-Young; Fischer, Peter; Bryan, Matthew T.; Allwood, Dan A.; Steadman, Paul; Langridge, Sean; Marrows, Christopher H.

Publication Date:: Tue Sep 08 00:00:00 EDT 2015

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1246787

Report Number(s):: BNL-111860-2016-JA
Journal ID: ISSN 0277-786X; KC0403020

Grant/Contract Number:: SC00112704

Resource Type:: Accepted Manuscript

Journal Name:: Proceedings of SPIE - The International Society for Optical Engineering

Additional Journal Information:: Journal Volume: 9551; Journal Issue: 9551; Conference: San Diego, CA (United States), 9-13 Aug 2015; Journal ID: ISSN 0277-786X

Publisher:: SPIE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; magnetism; microscopy; photons; x-ray magnetic circular dichroism; X-rays; magneto-optics; mechanics; artificial spin ice; vertex model; nanomagnetism; magnetic soft X-ray; transmission microscopy

Citation Formats


                    Drouhin, Henri-Jean, Wegrowe, Jean-Eric, Razeghi, Manijeh, Morley, Sophie A., Stein, Aaron, Rosamond, Mark C., Alba Venero, Diego, Hrabec, Aleš, Shepley, Philippa M., Im, Mi-Young, Fischer, Peter, Bryan, Matthew T., Allwood, Dan A., Steadman, Paul, Langridge, Sean, and Marrows, Christopher H. Temperature and magnetic-field driven dynamics in artificial magnetic square ice.  United States: N. p., 2015. 
Web.  doi:10.1117/12.2189320.

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                    Drouhin, Henri-Jean, Wegrowe, Jean-Eric, Razeghi, Manijeh, Morley, Sophie A., Stein, Aaron, Rosamond, Mark C., Alba Venero, Diego, Hrabec, Aleš, Shepley, Philippa M., Im, Mi-Young, Fischer, Peter, Bryan, Matthew T., Allwood, Dan A., Steadman, Paul, Langridge, Sean, & Marrows, Christopher H. Temperature and magnetic-field driven dynamics in artificial magnetic square ice.  United States.  https://doi.org/10.1117/12.2189320

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                    Drouhin, Henri-Jean, Wegrowe, Jean-Eric, Razeghi, Manijeh, Morley, Sophie A., Stein, Aaron, Rosamond, Mark C., Alba Venero, Diego, Hrabec, Aleš, Shepley, Philippa M., Im, Mi-Young, Fischer, Peter, Bryan, Matthew T., Allwood, Dan A., Steadman, Paul, Langridge, Sean, and Marrows, Christopher H. Tue .  
"Temperature and magnetic-field driven dynamics in artificial magnetic square ice".  United States.  https://doi.org/10.1117/12.2189320.  https://www.osti.gov/servlets/purl/1246787.

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@article{osti_1246787,

  title        = {Temperature and magnetic-field driven dynamics in artificial magnetic square ice},

  author       = {Drouhin, Henri-Jean and Wegrowe, Jean-Eric and Razeghi, Manijeh and Morley, Sophie A. and Stein, Aaron and Rosamond, Mark C. and Alba Venero, Diego and Hrabec, Aleš and Shepley, Philippa M. and Im, Mi-Young and Fischer, Peter and Bryan, Matthew T. and Allwood, Dan A. and Steadman, Paul and Langridge, Sean and Marrows, Christopher H.},

  abstractNote = {Artificial spin ices are often spoken of as being realisations of some of the celebrated vertex models of statistical mechanics, where the exact microstate of the system can be imaged using advanced magnetic microscopy methods. The fact that a stable image can be formed means that the system is in fact athermal and not undergoing the usual finite-temperature fluctuations of a statistical mechanical system. In this paper we report on the preparation of artificial spin ices with islands that are thermally fluctuating due to their very small size. The relaxation rate of these islands was determined using variable frequency focused magneto-optic Kerr measurements. We performed magnetic imaging of artificial spin ice under varied temperature and magnetic field using X-ray transmission microscopy which uses X-ray magnetic circular dichroism to generate magnetic contrast. Furthermore, we have developed an on-membrane heater in order to apply temperatures in excess of 700 K and have shown increased dynamics due to higher temperature. Due to the ‘photon-in, photon-out' method employed here, it is the first report where it is possible to image the microstates of an ASI system under the simultaneous application of temperature and magnetic field, enabling the determination of relaxation rates, coercivties, and the analysis of vertex population during reversal.},

  doi          = {10.1117/12.2189320},

  journal      = {Proceedings of SPIE - The International Society for Optical Engineering},

  number       = 9551,

  volume       = 9551,

  place        = {United States},

  year         = {Tue Sep 08 00:00:00 EDT 2015},

  month        = {Tue Sep 08 00:00:00 EDT 2015}

}

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Works referencing / citing this record:

Effect of FePd alloy composition on the dynamics of artificial spin ice
journal, March 2018

Morley, Sophie A.; Riley, Susan T.; Porro, Jose-Maria
Scientific Reports, Vol. 8, Issue 1
DOI: 10.1038/s41598-018-23208-6

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Title: Temperature and magnetic-field driven dynamics in artificial magnetic square ice

Abstract

Citation Formats

Effect of FePd alloy composition on the dynamics of artificial spin ice journal, March 2018

Effect of FePd alloy composition on the dynamics of artificial spin ice
journal, March 2018