Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, USBEREIT 2021
Год издания: 2021
Идентификатор DOI: 10.1109/USBEREIT51232.2021.9455065
Ключевые слова: hysteresis loop, magnetic characteristics, measuring unit, thin magnetic films
Аннотация: The magnetic properties of thin magnetic films are of scientific and practical promise due to their of the physical properties. The presence of hysteresis loops is the specific characteristic feature of ferromagnetic materials. Some magnetic characteristics, as well as the quality of a thin ferromagnetic film can be determined by tПоказать полностьюhe hysteresis loop. The paper considers a new measuring unit for the observation of hysteresis loops in thin ferromagnetic films. A structural scheme, a sketch of the measuring unit, an external appearance are presented. Two Hall sensors were used as a sensitive element. Detailed description of the design is given and the advantages of the new unit over its analogues are shown. The results of the experiment confirm that the newly developed measuring unit can be used to solve various scientific and practical problems, e. g., for the express measurement analysis of hysteresis loops in thin magnetic film device manufacturing. The experiment was carried out on a thin ferromagnetic film of permalloy Ni80Fe20 composition with 8 magnetic layers. The sample was obtained by magnetron sputtering of a permalloy target on a glass substrate in vacuum. The dimensions of the film were 4 × 8 mm. The new measuring unit allows to use any external sources of alternating magnetic field. The sensitive elements (Hall sensors) of the unit can be replaced by other magnetic field sensors. © 2021 IEEE.
Журнал: Proceedings - 2021 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, USBEREIT 2021
Номера страниц: 264-266
Издатель: Institute of Electrical and Electronics Engineers Inc.