标题： Bi0.7Dy0.3FeO3薄膜与ZnO薄膜集成的磁畴结构研究 显示英文标题

标题： Investigation of Magnetic Domain Structure in Bi0.7Dy0.3FeO3 thin films integrated with ZnO film

摘要： 多铁Bi1-xDyxFeO3 (BDFO) 在宏观层面上沉积在ZnO上的磁畴结构在本文中得到了展示。 在室温下通过饱和磁性和铁电滞后回线观察到磁性特性。 通过在样品和MFM探针之间施加偏压，使用多模式原子力显微镜验证了耦合行为和磁转变。 300 nm厚的ZnO薄膜通过使用ZnO靶材在Si p型导电(.0001-0005{\Omega }cm)基底上通过介电溅射沉积而成。 300 nm厚的BDFO薄膜通过PLD（脉冲激光沉积）技术沉积在Si/ZnO上。 观察到与ZnO薄膜集成的BDFO薄膜在室温下表现出铁磁和铁电有序共存以及显著的耦合。 将BDFO薄膜与ZnO压电薄膜集成显示出在MEMS应用以及存储器件和强历史依赖系统中的潜力。 显示英文摘要

摘要： The magnetic domain structure of the multiferroic Bi1-xDyxFeO3 (BDFO) deposited on ZnO at the macroscopic level has been demonstrated in this paper. Magnetic properties are observed by saturated magnetic and ferroelectric hysteresis loops at room temperature. The coupling behaviour and magnetic transition are verified using Multimode Atomic Force Microscope by applying bias between sample and MFM tip. ZnO thin film of 300 nm was deposited by dielectric sputtering using a ZnO target on Si p-type conducting (.0001-0005 {\Omega} cm) substrate. BDFO thin films of 300 nm were deposited on Si/ZnO using PLD (Pulsed laser deposition) technique. It is observed that BDFO thin films integrated with ZnO film shows the coexistence of ferromagnetic and ferroelectric ordering with significant coupling at room temperature. Integration of BDFO films with ZnO piezoelectric thin film shows the potential in MEMS applications as well as in Memory devices and strong history dependent systems.