{ "id": "1409.7250", "version": "v1", "published": "2014-09-25T13:21:18.000Z", "updated": "2014-09-25T13:21:18.000Z", "title": "Sign Reversal of anisotropic magnetoresistance in La0.7Ca0.3MnO3/STO ultrathin films", "authors": [ "Himanshu Sharma", "A. Tulapurkar", "C. V. Tomy" ], "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We present the observation of strain induced sign reversal of anisotropic magnetoresistance (AMR) in LCMO (LCMO) ultrathin films (thickness 4 nm) deposited on STO (001) substrate (STO). We have also observed unusually large AMR in LCMO/STO thin films with thickness of 6 nm below but close to its Curie temperature (TC) which decrease as the film thickness increases. The sign reversal of AMR (with a maximum value of - 6) with magnetic field or temperature for the 4 nm thin film may be attributed to the increase in tensile strain in the plane of the thin film which in turn facilitates the rotation of the magnetization easy axis.", "revisions": [ { "version": "v1", "updated": "2014-09-25T13:21:18.000Z" } ], "analyses": { "keywords": [ "3mno3/sto ultrathin films", "anisotropic magnetoresistance", "strain induced sign reversal", "lcmo/sto thin films", "film thickness increases" ], "tags": [ "journal article" ], "publication": { "doi": "10.1063/1.4903236", "journal": "Applied Physics Letters", "year": 2014, "month": "Dec", "volume": 105, "number": 22, "pages": 222406 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014ApPhL.105v2406S" } } }