{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T22:16:55Z","timestamp":1769552215733,"version":"3.49.0"},"reference-count":17,"publisher":"AIP Publishing","issue":"2","license":[{"start":{"date-parts":[[2023,2,2]],"date-time":"2023-02-02T00:00:00Z","timestamp":1675296000000},"content-version":"vor","delay-in-days":1,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2023,2,2]],"date-time":"2023-02-02T00:00:00Z","timestamp":1675296000000},"content-version":"tdm","delay-in-days":1,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["PROGRAMATICO"],"award-info":[{"award-number":["PROGRAMATICO"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["BASE"],"award-info":[{"award-number":["BASE"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["PTDC\/NAN-MAT\/4093\/2021"],"award-info":[{"award-number":["PTDC\/NAN-MAT\/4093\/2021"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UI\/BD\/151461\/2021"],"award-info":[{"award-number":["UI\/BD\/151461\/2021"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UID\/05367\/2020"],"award-info":[{"award-number":["UID\/05367\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2023,2,1]]},"abstract":"<jats:p>Magnetoresistive sensors have been enthusiastically selected for applications requiring magnetic field detection with small footprint sensors. The optimisation of the sensor response includes using soft magnetic free layers, based on CoFeB and NiFe alloys. Here we report the TMR and noise performance of magnetically saturated in-plane MTJ sensors including CoFeBTa and CoFeSiB soft magnetic films as free layers (FL). Assessing magneto-crystalline anisotropy \u03bc0Hk values of 2.1 and 0.7 mT in CoFeB 2.5 (nm)\/Ru 0.2\/CoFeBTa 4 and CoFeB 3\/Ru 0.2\/CoFeSiB 4 compared to 1.7 mT in CoFeB 2.5\/Ru 0.2\/NiFe 4, together with an improved magnetoresistance of 230% in CoFeBSi comparing with 170% (NiFe) with superior noise characteristics, with Hooge parameter of \u03b1H = 7 \u00d7 10\u221211\u00a0\u03bcm2.<\/jats:p>","DOI":"10.1063\/9.0000559","type":"journal-article","created":{"date-parts":[[2023,2,2]],"date-time":"2023-02-02T14:50:46Z","timestamp":1675349446000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":11,"title":["CoFeBX layers for MgO-based magnetic tunnel junction sensors with improved magnetoresistance and noise performance"],"prefix":"10.1063","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1912-7477","authenticated-orcid":false,"given":"F.","family":"Matos","sequence":"first","affiliation":[{"name":"INESC - Microsistemas e Nanotecnologias 1 , Rua Alves Redol, 9, Lisbon 1000-029, Portugal"},{"name":"Instituto Superior Tecnico - Universidade de Lisboa 2 , Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4266-0635","authenticated-orcid":false,"given":"R.","family":"Macedo","sequence":"additional","affiliation":[{"name":"INESC - Microsistemas e Nanotecnologias 1 , Rua Alves Redol, 9, Lisbon 1000-029, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0015-1186","authenticated-orcid":false,"given":"P. 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