Resumen: In this work we have used focused electron beam induced deposition of cobalt to functionalize atomic force microscopy Akiyama tips for application in magnetic force microscopy. The grown tips have a content of ˜90 % Co after exposure to ambient air. The magnetic tips were characterized using energy dispersive x-ray spectroscopy and scanning electron microscopy. In order to investigate the magnetic properties, current loops were prepared by electron beam lithography. Measurements at room temperature as well as 4.2 K were carried out and the coercive field of ˜6.8 mT of the Co tip was estimated by applying several external fields in the opposite direction of the tip magnetization. Magnetic Akiyama tips open new possibilities for wide-range temperature magnetic force microscopy measurements. Idioma: Inglés DOI: 10.1088/1361-6501/aa925e Año: 2017 Publicado en: MEASUREMENT SCIENCE & TECHNOLOGY 28, 12 (2017), 125401 [7 pp] ISSN: 0957-0233 Factor impacto JCR: 1.685 (2017) Categ. JCR: ENGINEERING, MULTIDISCIPLINARY rank: 31 / 86 = 0.36 (2017) - Q2 - T2 Categ. JCR: INSTRUMENTS & INSTRUMENTATION rank: 30 / 61 = 0.492 (2017) - Q2 - T2 Factor impacto SCIMAGO: 0.53 - Engineering (miscellaneous) (Q1) - Instrumentation (Q2) - Applied Mathematics (Q3)