{ "id": "1609.02930", "version": "v1", "published": "2016-09-09T20:12:21.000Z", "updated": "2016-09-09T20:12:21.000Z", "title": "Effect of lithographically-induced strain relaxation on the magnetic domain configuration in microfabricated epitaxially grown Fe81Ga19", "authors": [ "R. P. Beardsley", "D. E. Parkes", "J. Zemen", "S. Bowe", "K. W. Edmonds", "C. Reardon", "F. Maccherozzi", "I. Isakov", "P. A. Warburton", "R. P. Campion", "B. L. Gallagher", "S. A. Cavill", "A. W. Rushforth" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "We investigate the role of lithographically-induced strain relaxation in a micron-scaled device fabricated from the magnetostrictive alloy Fe81Ga19. The strain relaxation due to lithographic patterning induces a magnetic anisotropy that competes with the magnetocrystalline and shape induced anisotropy to play a crucial role in stabilising a flux-closing domain pattern. We use magnetic imaging, micromagnetic calculations and linear elastic modelling to investigate a region close to the edges of an etched structure. This highly-strained edge region has a significant influence on the magnetic domain configuration due to an induced magnetic anisotropy resulting from the inverse magnetostriction effect. Understanding this behaviour will be important when designing hybrid magneto-electric spintronic devices based on highly magnetostrictive materials.", "revisions": [ { "version": "v1", "updated": "2016-09-09T20:12:21.000Z" } ], "analyses": { "keywords": [ "magnetic domain configuration", "microfabricated epitaxially grown fe81ga19", "lithographically-induced strain relaxation", "magnetic anisotropy", "designing hybrid magneto-electric spintronic devices" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }