Analysis of ultra-narrow ferromagnetic domain walls
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004.
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| Format: | Thesis |
| Language: | en_US |
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Massachusetts Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1721.1/28352 |
| _version_ | 1811096655508799488 |
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| author | Jenkins, Catherine A. (Catherine Ann), 1981- |
| author2 | David I. Paul and Samuel M. Allen. |
| author_facet | David I. Paul and Samuel M. Allen. Jenkins, Catherine A. (Catherine Ann), 1981- |
| author_sort | Jenkins, Catherine A. (Catherine Ann), 1981- |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004. |
| first_indexed | 2024-09-23T16:46:56Z |
| format | Thesis |
| id | mit-1721.1/28352 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:46:56Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/283522019-04-10T16:35:59Z Analysis of ultra-narrow ferromagnetic domain walls Jenkins, Catherine A. (Catherine Ann), 1981- David I. Paul and Samuel M. Allen. Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Materials Science and Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004. Includes bibliographical references (p. 35). A mathematical analysis of ultra-narrow ferromagnetic domain walls was undertaken, with graphical plots coded in the programming language TrueBASIC. An intrinsic inter-atomic potential stemming from the breakdown of the continuum approximation of matter is calculated and its contribution to the coercive force of hard materials is depicted. The interaction of a very narrow domain wall with a similarly narrow planar defect is analyzed. Time-dependent motion of such walls is modeled for various external driving forces and in different combinations of material parameters. This work was completed in parallel with a study of narrow crystallographic magnetic discontinuities known as twin boundaries, and was designed to gain an intuition into the control of high-anisotropy magnetic recording devices. The equations developed here would be particularly useful as a basis for approaching the calculations of the stability of high-density storage media. by Catherine Jenkins. S.M. 2005-09-26T19:59:18Z 2005-09-26T19:59:18Z 2004 2004 Thesis http://hdl.handle.net/1721.1/28352 56028361 en_US M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 71 p. 2419937 bytes 2419737 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Materials Science and Engineering. Jenkins, Catherine A. (Catherine Ann), 1981- Analysis of ultra-narrow ferromagnetic domain walls |
| title | Analysis of ultra-narrow ferromagnetic domain walls |
| title_full | Analysis of ultra-narrow ferromagnetic domain walls |
| title_fullStr | Analysis of ultra-narrow ferromagnetic domain walls |
| title_full_unstemmed | Analysis of ultra-narrow ferromagnetic domain walls |
| title_short | Analysis of ultra-narrow ferromagnetic domain walls |
| title_sort | analysis of ultra narrow ferromagnetic domain walls |
| topic | Materials Science and Engineering. |
| url | http://hdl.handle.net/1721.1/28352 |
| work_keys_str_mv | AT jenkinscatherineacatherineann1981 analysisofultranarrowferromagneticdomainwalls |