Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1134/S0020441216030131
Ключевые слова: Magnetic fields, Magnetic films, Magnetometers, Microwave resonators, Nickel alloys, Polarization, Resonators, Thin films, Transducers, Anisotropic thin films, High sensitivity magnetometers, High-frequency magnetic field, Microstrip structures, Microstrip transducers, Microwave magnetic field, Polarization direction, Simultaneous measurement, Magnetism
Аннотация: A high-sensitivity magnetometer for simultaneous measurements of three components of a weak quasi-stationary or high-frequency magnetic-field vector was developed and investigated. Microstrip structures that are based on irregular resonators serve as the magnetometer transducers. An anisotropic thin-film magnetic structure is used Показать полностьюas the sensing element. This structure consists of two thin magnetic films that are prepared by magnetron sputtering of a Ni75Fe25 permalloy target and separated by a silicon monoxide layer. It is demonstrated that the transducer exhibits the maximum sensitivity, when the easy magnetization axis of the film structure is orthogonal to the polarization direction of the pumping microwave magnetic field in the microstrip resonator and at an optimal value of a constant magnetic bias field and its optimal deflection from the pumping-field polarization direction which is parallel to it. The magnetometer is characterized by a wide dynamic range of measured magnetic fields, 10(-10)-10(-4) D cent, and a wide frequency range, 10(-1)-10(5) Hz.
Журнал: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
Выпуск журнала: Vol. 59, Is. 3
Номера страниц: 425-432
ISSN журнала: 00204412
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER