Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet
The influence of gate voltage, temperature, and magnetic field on domain wall (DW) creep dynamics is investigated in Pt/Co/gadolinium oxide (GdOx) films with perpendicular magnetic anisotropy and imaged by a scanning magneto-optical Kerr effect technique. The DW creep velocity can be controlled by a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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American Institute of Physics
2013
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| Online Access: | http://hdl.handle.net/1721.1/79413 https://orcid.org/0000-0002-9998-7276 |
| _version_ | 1811092563822641152 |
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| author | Bauer, Uwe Emori, Satoru Beach, Geoffrey Stephen |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Bauer, Uwe Emori, Satoru Beach, Geoffrey Stephen |
| author_sort | Bauer, Uwe |
| collection | MIT |
| description | The influence of gate voltage, temperature, and magnetic field on domain wall (DW) creep dynamics is investigated in Pt/Co/gadolinium oxide (GdOx) films with perpendicular magnetic anisotropy and imaged by a scanning magneto-optical Kerr effect technique. The DW creep velocity can be controlled by an electric field applied to the Co/GdOx interface via a linear modulation of the activation energy barrier with gate voltage. At low speeds, the DW velocity can be changed significantly by a gate voltage, but the effect is diminished as the DW velocity increases, which limits electric field control of fast DW motion. |
| first_indexed | 2024-09-23T15:20:12Z |
| format | Article |
| id | mit-1721.1/79413 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:20:12Z |
| publishDate | 2013 |
| publisher | American Institute of Physics |
| record_format | dspace |
| spelling | mit-1721.1/794132022-10-02T02:16:02Z Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet Bauer, Uwe Emori, Satoru Beach, Geoffrey Stephen Massachusetts Institute of Technology. Department of Materials Science and Engineering Bauer, Uwe Emori, Satoru Beach, Geoffrey Stephen The influence of gate voltage, temperature, and magnetic field on domain wall (DW) creep dynamics is investigated in Pt/Co/gadolinium oxide (GdOx) films with perpendicular magnetic anisotropy and imaged by a scanning magneto-optical Kerr effect technique. The DW creep velocity can be controlled by an electric field applied to the Co/GdOx interface via a linear modulation of the activation energy barrier with gate voltage. At low speeds, the DW velocity can be changed significantly by a gate voltage, but the effect is diminished as the DW velocity increases, which limits electric field control of fast DW motion. National Science Foundation (U.S.) (NSF-ECCS-1128439) National Science Foundation (U.S.) (Graduate Research Fellowship Program) 2013-07-02T19:45:29Z 2013-07-02T19:45:29Z 2012-10 2012-06 Article http://purl.org/eprint/type/JournalArticle 00036951 http://hdl.handle.net/1721.1/79413 Bauer, Uwe, Satoru Emori, and Geoffrey S. D. Beach. Voltage-gated Modulation of Domain Wall Creep Dynamics in an Ultrathin Metallic Ferromagnet. Applied Physics Letters 101, no. 17 (2012): 172403. © 2012 American Institute of Physics. https://orcid.org/0000-0002-9998-7276 en_US http://dx.doi.org/10.1063/1.4764071 Applied Physics Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Institute of Physics MIT web domain |
| spellingShingle | Bauer, Uwe Emori, Satoru Beach, Geoffrey Stephen Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| title | Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| title_full | Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| title_fullStr | Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| title_full_unstemmed | Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| title_short | Voltage-gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| title_sort | voltage gated modulation of domain wall creep dynamics in an ultrathin metallic ferromagnet |
| url | http://hdl.handle.net/1721.1/79413 https://orcid.org/0000-0002-9998-7276 |
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