{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T15:33:28Z","timestamp":1773070408657,"version":"3.50.1"},"reference-count":19,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2019,8,13]],"date-time":"2019-08-13T00:00:00Z","timestamp":1565654400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We took advantage of the large anomalous Hall effect (AHE) in Fe\u2013Pt ferromagnetic alloys and fabricated magnetic sensors for low-frequency applications. We characterized the low-frequency electronic noise and the field detectability of the FexPt100-x system with various thin film thicknesses and Fe concentrations. The noise source consisted of 1\/f and Johnson noise. A large current density increased the 1\/f noise but not the Johnson noise. We found that the field detectability of the optimized Fe\u2013Pt thin film offers much better low-frequency performance than a highly sensitive commercial semiconductor Hall sensor. Anomalous Hall effect sensors are, therefore, good candidates for magnetic sensing applications.<\/jats:p>","DOI":"10.3390\/s19163537","type":"journal-article","created":{"date-parts":[[2019,8,14]],"date-time":"2019-08-14T03:59:26Z","timestamp":1565755166000},"page":"3537","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Low-Frequency Noise of Magnetic Sensors Based on the Anomalous Hall Effect in Fe\u2013Pt Alloys"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0043-3159","authenticated-orcid":false,"given":"Yiou","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Physics, Brown University, Providence, RI 02912, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0339-4060","authenticated-orcid":false,"given":"Qiang","family":"Hao","sequence":"additional","affiliation":[{"name":"Department of Physics, Brown University, Providence, RI 02912, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3440-3946","authenticated-orcid":false,"given":"Gang","family":"Xiao","sequence":"additional","affiliation":[{"name":"Department of Physics, Brown University, Providence, RI 02912, USA"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1539","DOI":"10.1103\/RevModPhys.82.1539","article-title":"Anomalous Hall effect","volume":"82","author":"Nagaosa","year":"2010","journal-title":"Rev. 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