2016年9月1日 · Here we report the realization of a BiFeO 3 material in thin film form with single-domain behaviour in both its magnetism and ferroelectricity: the entire film shows its antiferromagnetic axis...

2021年3月1日 · Reciprocal space mappings (RSMs) of (c) (002) reflections of BFO films grown on STO with CCMO interface layer, and (d) (103) reflections demonstrating the CCMO layer releases full strain and generates the desired strain to stabilize the T phase of BFO thin film.

2016年12月1日 · The X-ray diffraction (XRD) and the high-solution XRD reciprocal space mapping (RSM) techniques were employed to analyze the structures of these BFO films, using the Rigaku SmartLab (9 kW) High...

2014年5月5日 · High-resolution 3-Dimensional Reciprocal Space Mapping (3D-RSM) has been performed on mixed-phase BiFeO 3 (BFO) epitaxial films on (001)-oriented LaAlO 3 substrates. Our results demonstrate that 3D-RSM is an effective way to present a structural overview of the different BFO polymorphs, domain variants, and even the interfacial regions between ...

2025年2月15日 · Combined high precision reciprocal spacing mapping (RSM) measurements with the atomic-scale scanning transmission electron microscopy (STEM) technique, it was confirmed that complex dipole grouping was formed in BFO thin films, exhibiting regular striping domains and accumulation of charged domain walls.

2021年3月1日 · Using a combination of X-ray diffraction (XRD) and scanning probe microscopy (SPM), we reveal that MC phase BFO is induced to true tetragonal (T) phase through 17% La doping. The coexistence of straight multi-MPBs is not only observed, but also reversibly manipulated by applying electric field in 100-nm-thick LBFO thin films. 2.

2015年11月25日 · By measuring the lattice parameter variation, the RSM peak spread provides a good estimation of the strain coupling/relaxation in VAN films. A large strain-induced lattice parameter variation can be seen from the broad BFO (103) RSM peak of film 2 in Fig. 1(d), compared to the much narrower peak in

使用脉冲激光沉积在SrTiO3 衬底上生长了不同厚度的BiFeO3(BFO) 薄膜, X射线衍射分析表明薄膜是BFO 外延薄膜. X 射线反射率测量发现BFO 薄膜密度随着厚度的增加而增加, 同时薄膜表面存在厚度为数纳米的非设计覆盖层. 随着厚度的增加, BFO 薄膜由完全应变过渡到应变部分弛豫状态, 同时BFO从四方相转变为单斜相. 多铁材料是一种结构参数有序、铁电性和铁磁性并存、而且具有磁电耦合作用的材料. 这种材料在诸如传感器、信息存储、自旋电子设备等微电子器件中有着巨 …

2015年1月28日 · Perovskite BiFeO 3 (BFO) is found to be a green piezo/ferroelectric material with longitudinal piezoelectric coefficient 3 (d 33) larger than 60 pm/V and spontaneous...

Self-assembled BiFeO3-CoFe2O4 (BFO-CFO) vertically aligned nanocomposites are promising for logic, memory, and multiferroic applications, primarily due to the tunability enabled by strain ...

2017年12月14日 · Reciprocal space mapping (RSM) was conducted by high-resolution XRD using a PANalytical Empyrean four-circle diffractometer (CuKα1, λ = 1.5406 Å) with a hybrid monochromator and PIXcel3D detector. The ferroelectric properties of BFO films were measured by piezoelectric force microscopy (PFM; Asylum Research MFP-3D).

We show that the STO-BFO interface provides a highly conductive path and improves by orders of magnitude the photoconductivity of the BFO thin film. Using thermally stimulated conductivity techniques, we unveiled the trap levels in both BFO and STO, and we show that oxygen vacancies lie at the core of the photoconductivity of the interface.

2020年2月1日 · In the 17-nm-thick BiFeO 3 thin films, an obvious magnetic moment is induced by spin canting. The orbital reconstruction exists at the mixed BFO phase boundaries. BiFeO 3 (BFO), a room-temperature antiferromagnetic-ferroelectric multiferroic, is widely researched due to its potential applications for electric-field control of the magnetism.

We propose a novel and facile method to fabricate epitaxial ferroelectric BiFeO3 (BFO) nanorings using anodized alumina (AAO) template-assisted PLD and ion-beam etching.

2013年11月9日 · bfo薄膜是利用脉冲激光沉积方法制备.耙材 引用格式:李晓龙,王灿,顾月良,等.利用同步辐射XRD研究BiFeO3外延多铁薄膜的微结构.中国科学:物理学力学天文学,2011,41:12~16,

In this study, a correlative strain analysis based on dark-field inline electron holography (DIH) and quantitative scanning transmission electron microscopy (STEM) was performed to reveal the...

Using a combination of X-ray diffraction (XRD) with reciprocal space maps (RSMs), scanning probe microscopy, and transmission electron microscopy (TEM), we find that the use of this approach not only enables the growth of high-quality BFO epitaxial thin films, but also provides the ability to generate a desired strain that can induce phase trans...

2021年4月7日 · Using a combination of X-ray diffraction (XRD) with reciprocal space maps (RSMs), scanning probe microscopy, and transmission electron microscopy (TEM), we find that the use of this approach not only enables the growth of high-quality BFO epitaxial thin films, but also provides the ability to generate a desired strain that can induce phase trans...

2021年9月15日 · In this letter, the BPV effect properties in different orientational BFO films were systematically studied. The x-ray reciprocal space mapping (RSM) and piezoelectric force microscopy (PFM) indicate that domain structure and DW …

2021年8月1日 · We used a BFO target enriched with 10% Bismuth and a Fe substitution with 5% of manganese (Bi 1·1 Fe 0·95 Mn 0·05 O 3). This BFO target stoichiometry is chosen to prevent Bi loss during the growth and to decrease the amount of leakage currents. The bottom electrode SRO (20 nm) was synthesized at 650 °C and oxygen pressure 0.3 mbar.