We report lead-free ferroelectric based resistive switching non-volatile memory (NVM) devices with epitaxial (1-x)BaTiO3-xBiFeO3 (x = 0.725) (BT-BFO) film integrated on semiconducting (100) Nb (0.7%) doped SrTiO3 (Nb:STO) substrates. The piezoelectric force microscopy (PFM) measurement at room temperature demonstrated ferroelectricity in the BT-BFO thin film. PFM results also reveal the repeata...

Ontologies are often used in combination with natural language processing (NLP) tools to carry out ontology-related text manipulation tasks, such as automatic annotation of biomedical texts with ontology terms. These tasks involve categorizing relevant terms from texts under the appropriate categories. This requires coupling ontologies with lexical resources. Several projects have realized thes...

The Partial Transmit Sequence which reduces the PAPR (Peak-to-Average Power Ratio) in Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system using a novel optimization algorithm is proposed in this study. This novel optimization algorithm is based on a hybrid of Bacterial Foraging Optimization (BFO) and Modified Cuckoo Search algorithm (MCS) and is thus cal...

With an ever-expanding demand for data storage, transducers, and microelectromechanical (MEMS) systems applications, materials with superior ferroelectric and piezoelectric responses are of great interest. The lead zirconate titanate (PZT) family of materials has served as the cornerstone for such applications up until now. A critical drawback of this material, however, is the presence of lead ...

Control over ferroelectric polarization variants in BiFeO3 films through the use of various vicinal SrTiO3 substrates is demonstrated. The ferroelectric polarization variants in these films are characterized by piezoelectric force microscopy and the corresponding structural variants are carefully analyzed and confirmed by X-ray diffraction. Implementation of this approach has given us the abili...

In this study a comparison of the topography BiFeO 3 (BFO) thin films deposited on tantalum pentoxide substrates different thicknesses is provided. The Ta 2 O 5 had roughness increasing with film thickness. relationship between but same composition quality growing bismuth ferrite estimated. For first time estimation BFO presented. difference in temperature expansion coefficients leads to intens...

We review our work on combinatorial search and investigation of morphotropic phase boundaries (MPBs) in chemically substituted BiFeO3 (BFO). Utilizing the thin-film composition spread technique, we discovered that rare-earth (RE 5 Sm, Gd, and Dy) substitution into the A-site of the BFO lattice results in a structural phase transition from the rhombohedral to the orthorhombic phase. At the struc...

In order to obtain accurate and reliable network planning in the Radio Frequency Identification (RFID) communication system, the locations of readers and the associated values for each of the reader parameters have to be determined. All these choices must optimize a set of objectives, such as tag coverage, economic efficiency, load balance, and interference level between readers. This paper pro...

This paper examines the primitive relations (dependence, quality, and constitution) of the BFO and DOLCE upper ontologies, employed in developing domain ontologies of the biomedical sciences. The strengths in both upper ontologies are examined, which sets a framework for developing a common upper ontology that utilizes the assets of both.

The powders of Bi1-xPrxFeO3 (x = 0, 0.05, 0.1) and Bi0.95Pr0.05Fe1-yMnyO3 (y were prepared by hydrothermal method. effects Pr Mn doping content on the structure, morphology, magnetic, photocatalytic properties BiFeO3 (BFO) have been studied. X-ray diffraction (XRD) demonstrated that compounds are distorted rhombohedral perovskite structure without any other heterogeneity structural transition. ...