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Multi-Ferroic Properties on BiFeO3/BaTiO3 Multi-Layer Thin-Film Structures with the Strong Magneto-Electric Effect for the Application of Magneto-Electric Devices
Coatings ( IF 2.9 ) Pub Date : 2021-01-08 , DOI: 10.3390/coatings11010066
Cheng-Wei Hu , Ching-Min Yen , Yu-Chia Feng , Liang-Hsi Chen , Bo-Zhou Liao , Sheng-Chi Chen , Ming-Han Liao

The characteristics of X-ray Diffraction (XRD), Current (I)-Voltage (V), and the Polarization-Electric field (P-E) on the BiFeO3 (BFO), BaTiO3 (BTO), and our proposed Multi-Layer (ML) BiFeO3/BaTiO3 (BFO/BTO) samples are studied systemically. The influence of these films with and without different external Magnetic (Mex.) inputs is also investigated. Our proposed multi-ferroic ML BFO/BTO sample has a lower tunneling current (Jg) (~5 × 103 times) and a stronger magneto-electric effect (an ~25 times higher value of the change of saturated polarization Ps with the Mex. inputs than the pure multi-ferroic BFO sample. The material properties for ML BFO/BTO samples can be optimized with the combination of the advantages of BFO and BTO thin films. The stronger magneto-electric effect in our proposed ML samples can have many applications such as magnetic sensors, magnetic electric devices, and logic Magneto-Electric Spin–Orbit (MESO) devices.

中文翻译:

具有强电磁效应的BiFeO3 / BaTiO3多层薄膜结构的多铁性性质在电磁装置中的应用

BiFeO 3(BFO),BaTiO 3(BTO)和我们提出的多层结构上的X射线衍射(XRD),电流(I)-电压(V)和极化电场(PE)的特性系统研究了(ML)BiFeO 3 / BaTiO 3(BFO / BTO)样品。还研究了有无外部磁输入(M ex。)时这些薄膜的影响。我们提出的多铁性ML BFO / BTO样品具有较低的隧道电流(j)(〜5×10 3次)更强的磁电效应和(饱和极化P的变化的更高的〜25倍值小号带M ex。输入比纯多铁性BFO样品要大。结合BFO和BTO薄膜的优点,可以优化ML BFO / BTO样品的材料性能。在我们提出的ML样本中,较强的磁电效应可以用于许多应用,例如磁传感器,磁电设备和逻辑磁电自旋轨道(MESO)设备。
更新日期:2021-01-08
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