Results 21 to 30 of about 18,116 (135)

Effect of ionic radii on the Curie temperature in Ba1-x-ySrxCayTiO3 compounds [PDF]

, 2016
A series of Ba1-x-ySrxCayTiO3 compounds were prepared with varying average ionic radii and cation disorder on A-site. All samples showed typical ferroelectric behavior.
Alford, N, Berenov, AV, Le Goupil, F
core   +2 more sources

Fast Switching Ferroelectric Materials for Accelerator Applications [PDF]

, 2006
Fast switching (< 10 nsec) measurement results on the recently developed BST(M) (barium strontium titanium oxide composition with magnesium-based additions) ferroelectric materials are presented.
Dedyk, A., Kanareykin, A., Karmanenko, S., Kosmin, D., Kozyrev, A., Nenasheva, E., Osadchy, V., Schoessow, P., Semenov, A., Yakovlev, V.   +9 more
core   +2 more sources

Nonlinear dynamics of polar regions in paraelectric phase of (Ba1-x,Srx)TiO3 ceramics [PDF]

, 2017
The dynamic dielectric nonlinearity of barium strontium titanate (Ba1-x,Srx)TiO3 ceramics is investigated in their paraelectric phase. With the goal to contribute to the identification of the mechanisms that govern the dielectric nonlinearity in this ...
Damjanovic, Dragan, Hashemizadeh, Sina
core   +2 more sources

Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics [PDF]

, 2015
We report the polarization, displacement current and leakage current behavior of a trivalent nonpolar cation Al cation substituted lead free ferroelectric NBT-BT electroceramics with tetragonal phase and P4mm space group symmetry.
Ashok Kumar, Hitesh Borkar, J. F. Scott, Lampert M. A., M. Tomar, Sze S. M., Tredgold R. H., Vinay Gupta   +7 more
core   +2 more sources

Ultra‐Fast Non‐Volatile Resistive Switching Devices with Over 512 Distinct and Stable Levels for Memory and Neuromorphic Computing

Advanced Functional Materials, EarlyView.
A materials and device design concept that comprises a self‐assembled ultra‐thin epitaxial ion‐transporting layer, an amorphous oxide overcoat oxygen‐blocking layer, and a partial filament formed during an electroforming step is proposed for low‐current multilevel resistive switching devices.
Ming Xiao, Markus Hellenbrand, Nives Strkalj, Babak Bakhit, Zhuotong Sun, Nikolaos Barmpatsalos, Dovydas Joksas, Hongyi Dou, Zedong Hu, Ping Lu, Samip Karki, Sundar Kunwar, Jonathan D. Major, Aiping Chen, Haiyan Wang, Quanxi Jia, Adnan Mehonic, Judith L. MacManus‐Driscoll   +17 more
wiley   +1 more source

Dielectric and polarization experiments in high loss dielectrics: a word of caution

, 2008
The recent quest for improved functional materials like high permittivity dielectrics and/or multiferroics has triggered an intense wave of research. Many materials have been checked for their dielectric permittivity or their polarization state.
Lines M. E., M. A. Subramanian, M. Maglione, Maglione M., Sze S. M., Van Turnhout J.   +5 more
core   +4 more sources

Near‐Field Phonon Nanoscopy and Imaging of Structural Variants in Mixed Phase BiFeO3

Advanced Functional Materials, EarlyView.
Nano‐Fourier transform infrared spectroscopy and scattering scanning near‐field optical microscopy imaging reveal the phonon response of nanoscale phase variants in mixed‐phase BiFeO3 (BFO). Direct mid‐infrared imaging of associated distinct vibrational signatures is used as a non‐invasive optical detection method for electrical switching of ...
Dawei Zhang, En‐Ming You, Lei Wang, Byung‐Kweon Jang, Tanzeela Yousaf, Pengfei Zhang, Jincheol Kim, Chan‐Ho Yang, Jan Seidel   +8 more
wiley   +1 more source

Highly Efficient 3D‐Printed PVDF‐Based Triboelectric Nanogenerators Featuring Polymorphic Perovskite Nanofillers

Advanced Functional Materials, EarlyView.
This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy, Hai Li, Hock Beng Lee, Devi Prashad Ojha, Manoj Mayaji Ovhal, Vasanthan Devaraj, Sooman Lim, Jae‐Wook Kang   +7 more
wiley   +1 more source

Piezoelectric sensing coating for real time impact detection and location on aircraft structures [PDF]

, 2012
Flexible, light weight and low cost electroactive coating has been fabricated by the dispersion of inorganic ferroelectric submicron particles in a polyurethane matrix. BaTiO3 particles have a mean diameter of 300 nm. The poling process and the influence
Capsal, Jean-Fabien, Dantras, Eric, David, Charlotte, Lacabanne, Colette   +3 more
core   +2 more sources

Self‐Poled Halide Perovskite Ruddlesden‐Popper Ferroelectric‐Photovoltaic Semiconductor Thin Films and Their Energy Harvesting Properties

Advanced Functional Materials, EarlyView.
Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam, Shaoyang Wang, Nirmal Prashanth Maria Joseph Raj, Qingping Wang, Philip Wijesinghe, Julia Payne, Matthew S. Dyer, Chris Bowen, Lethy Krishnan Jagadamma   +8 more
wiley   +1 more source