Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy

Eimuller, T; Fischer, P; Schutz, G; Scholz, M; Bayreuther, G; Guttmann, P; Schmahl, G; Kohler, M

doi:10.1063/1.1355334

Title: Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy

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Abstract

The magnetization reversal of an array of 1 {mu}m squared FeGd dots has been studied by magnetic transmission x-ray microscopy (MTXM). A (4AaFe/4AaGd){times}75 multilayered FeGd system has been prepared on a 30 nm thin Si{sub 3}N{sub 4} membrane by sputtering and structured by optical lithography and ion beam etching techniques. Both the domain structure within each single dot and the collective switching behavior could be observed with MTXM. A large variation in the nucleation field of the dots was found and can be attributed to the shape of the dots. A correlation between the nucleation field and the perimeter of each dot could be deduced. Hysteresis loops of individual dots are derived, taking into account the proportionality of the dichroic contrast to the magnetization of the sample. The stepped profile of the magnetization loop of a single dot is found to be clearly distinct from a continuous film. The high lateral resolution and the possibility to record the images in varying external magnetic fields proves that MTXM is a highly adapted tool to investigate nanostructured magnetic systems. {copyright} 2001 American Institute of Physics.

Authors:: Eimuller, T; Fischer, P; Schutz, G; Scholz, M; Bayreuther, G; Guttmann, P; Schmahl, G; Kohler, M

Publication Date:: Fri Jun 01 00:00:00 EDT 2001

Sponsoring Org.:: (US)

OSTI Identifier:: 40203990

Resource Type:: Journal Article

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 89; Journal Issue: 11; Other Information: DOI: 10.1063/1.1355334; Othernumber: JAPIAU000089000011007162000001; 185111MMM; PBD: 1 Jun 2001; Journal ID: ISSN 0021-8979

Publisher:: The American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DOMAIN STRUCTURE; ION BEAMS; MAGNETIC FIELDS; MAGNETIZATION; MICROSCOPY; PHYSICS

Citation Formats


                    Eimuller, T, Fischer, P, Schutz, G, Scholz, M, Bayreuther, G, Guttmann, P, Schmahl, G, and Kohler, M. Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy.  United States: N. p., 2001. 
        Web.  doi:10.1063/1.1355334.

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                    Eimuller, T, Fischer, P, Schutz, G, Scholz, M, Bayreuther, G, Guttmann, P, Schmahl, G, & Kohler, M. Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy.  United States.  https://doi.org/10.1063/1.1355334

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                    Eimuller, T, Fischer, P, Schutz, G, Scholz, M, Bayreuther, G, Guttmann, P, Schmahl, G, and Kohler, M. 2001.  
        "Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy".  United States.  https://doi.org/10.1063/1.1355334.

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@article{osti_40203990,

  title        = {Magnetization reversal of a multilayered FeGd dot array imaged by transmission x-ray microscopy},

  author       = {Eimuller, T and Fischer, P and Schutz, G and Scholz, M and Bayreuther, G and Guttmann, P and Schmahl, G and Kohler, M},

  abstractNote = {The magnetization reversal of an array of 1 {mu}m squared FeGd dots has been studied by magnetic transmission x-ray microscopy (MTXM). A (4AaFe/4AaGd){times}75 multilayered FeGd system has been prepared on a 30 nm thin Si{sub 3}N{sub 4} membrane by sputtering and structured by optical lithography and ion beam etching techniques. Both the domain structure within each single dot and the collective switching behavior could be observed with MTXM. A large variation in the nucleation field of the dots was found and can be attributed to the shape of the dots. A correlation between the nucleation field and the perimeter of each dot could be deduced. Hysteresis loops of individual dots are derived, taking into account the proportionality of the dichroic contrast to the magnetization of the sample. The stepped profile of the magnetization loop of a single dot is found to be clearly distinct from a continuous film. The high lateral resolution and the possibility to record the images in varying external magnetic fields proves that MTXM is a highly adapted tool to investigate nanostructured magnetic systems. {copyright} 2001 American Institute of Physics.},

  doi          = {10.1063/1.1355334},

  url          = {https://www.osti.gov/biblio/40203990},
  journal      = {Journal of Applied Physics},

  issn         = {0021-8979},

  number       = 11,

  volume       = 89,

  place        = {United States},

  year         = {Fri Jun 01 00:00:00 EDT 2001},

  month        = {Fri Jun 01 00:00:00 EDT 2001}

}

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