Abstract
Barium titanate, perovskite structure is known for its high dielectric constant and piezoelectric properties, which makes it interesting material for fabricating capacitors, transducer, actuator, and sensors. The perovskite crystal structure and lattice vibrations play a crucial role in its piezoelectric and ferroelectric behavior. In the present study, the barium titanate powder was subjected to biofield treatment. Further, the control and treated samples were characterized using X-ray diffraction (XRD) and Fourier transform infrared spectrometer (FT-IR) and Electron spin resonance (ESR). The XRD analysis showed the permanent compressive strain of 0.45% in treated barium titanate powder as compared to control. Furthermore, the biofield treatment had enhanced the density upto 1.38% in barium titanate as compared to control. The FT-IR spectra showed that the stretching and bending vibrations of Ti-O bond in treated BaTiO3 were shifted towards lower frequency as compared to control. The bond length was substantially increased by 0.72 % in treated BaTiO3 as compared to control. The ESR spectra of control and treated BaTiO3 sample showed the g-factor of 2.0; and biofield treatment has substantially changed the width and height of ESR signal in treated BaTiO3 as compared to control. These observations revealed that biofield treatment has significantly altered the crystal structure, lattice strain, and bond vibration of barium titanate.
Highlights
Piezoelectric materials are commonly used in optoelectronic industries in fabricating sensor, capacitor, and actuator owing to their piezoelectricity and wide range of dielectric constant
The peaks were observed at 2θ=22.0°, 31.3°, 38.70°, 45.11°, 50.72°, 55.97°, and 65.8° in control Figure 1a, which indexed for tetragonal crystal structure of BaTiO3 as per Joint Committee on Powder Diffraction Standards (JCPDS) 05-0626
The biofield treatment has induced the permanent compressive lattice strain in tetragonal crystal structure of BaTiO3, which may occur due to electromagnetic field transferred through biofield treatment
Summary
Piezoelectric materials are commonly used in optoelectronic industries in fabricating sensor, capacitor, and actuator owing to their piezoelectricity and wide range of dielectric constant In these materials a strong relationship exists between mechanical displacements and electric field i.e. it induce electric polarization in response to applied stress and strained in response to applied electric fields. The perovskite structure of BaTiO3 attracted significant attention due to its exceptional dielectric, piezoelectric, and electro optic properties [3]. These exceptional properties make it a promising material for other applications such as multilayer ceramic capacitors (MLCCs), dynamic random access ferroelectric memories (DRAMs) [4]. After considering the vast importance of BatiO3 and its crystal structure in several applications, authors wish to investigate an approach that could be beneficial to modify the atomic and structural properties of BatiO3 powder
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