Amirov A. A., Starkov A. S., Starkov I. A., Kamantsev A. P., Rodionov V. V. Electric field controlled magnetic phase transition in Fe49Rh51 based magnetoelectric composites. Letters on Materials , 2018 , 8 (3). С. 353-357. ISSN 2218-5046
|
Текст
2018_Амиров_ПоМ.pdf Загрузить (3MB) | Предварительный просмотр |
Аннотация
A three-layer magnetoelectric composite PZT/FeRh/PZT consisting of a layer of a magnetic alloy Fe49Rh51 and two layers of a piezoelectric lead zirconate PbZr0.53Ti0.47O3 was fabricated and its magnetic properties were studied. The magnetic alloy Fe-49 Rh-51 from which the magnetic layer was made was obtained by induction melting from pure rhodium Rh (99.9%) and iron Fe (99.98%). An X-ray diffraction analysis of the alloy showed the predominance of a B2 type phase with a bcc structure with an impurity phase of type alpha' with a fcc structure. Elemental analysis confirmed the composition corresponding to Fe49Rh51 . Temperature dependences of magnetic susceptibility were measured in two regimes: with piezoelectric layers under voltage "switch on") and without voltage ("switch off"). In the "switch off" regime a phase transition at 324 K in heating and at 315 K in cooling is observed that is different from the results for pure Fe49Rh51 . Application of a voltage to the opposite faces of the composite induces a mechanical stress on the magnetic layer that leads to a decrease in the magnetic susceptibility and shift of the transition temperatures to 320 K in heating and 316 K in cooling. Moreover, this mechanical stress changes the shape and area of the hysteresis, which can be used for control of magnetic properties of materials. The magnetic properties and temperature hysteresis with applied electric field have been theoretically considered and explained on the basis of the Landau-Khalatnikov equations.
| Тип объекта: | Статья |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Амиров А.А., Старков А.С., Старков И.А., Каманцев А.П., Родионов В.В. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 192 лаб. магнитных явлений в микроэлектронике |
| URI: | http://cplire.ru:8080/id/eprint/7246 |
 |
Изменить объект |
