Results 51 to 60 of about 390,189 (321)

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

Advanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu, Xiangwei Guo, Sajid Husain, Maya Ramesh, Pushpendra Gupta, Darrell Schlom, Ramamoorthy Ramesh, Yu‐Tsun Shao   +7 more
wiley   +1 more source

Non-Resonant Magnetoelectric Energy Harvesting Utilizing Phase Transformation in Relaxor Ferroelectric Single Crystals

Actuators, 2015
Recent advances in phase transition transduction enabled the design of a non-resonant broadband mechanical energy harvester that is capable of delivering an energy density per cycle up to two orders of magnitude larger than resonant cantilever ...
Peter Finkel, Richard Pérez Moyet, Marilyn Wun-Fogle, James Restorff, Jesse Kosior, Margo Staruch, Joseph Stace, Ahmed Amin   +7 more
doaj   +1 more source

Dielectric and ferroelectric properties of CuO-doped lead magnesium niobate-based relaxor ferroelectric ceramics [PDF]

Journal of Advanced Dielectrics, 2019
In this work, we report the dielectric and ferroelectric properties of CuO-doped (1−x)[0.5573Pb(Mg1∕3Nb2∕3)O3-0.4427PbTiO3]-xBa(Zn1∕3Nb2∕3)O3 (PMNT-xBZN) relaxor ferrielectric ceramic samples with x=0.1725, 0.1925, 02125 and 0.2325, which were fabricated
Li Jin, Jing Pang, Yunyao Huang, Wenting Luo, Xu Lu, Xiaoyong Wei   +5 more
doaj   +1 more source

Electrostriction-enhanced giant piezoelectricity via relaxor-like secondary crystals in extended-chain ferroelectric polymers

Matter, 2021
Summary Piezoelectricity in ferroelectric polymers originates from the electrostrictive effect coupled with a remanent polarization. However, its structural origin remains controversial, and it is not clear how modifying the electrostriction can further ...
Zhi-Wen Zhu, Guan-Chun Rui, Qiong Li, E. Allahyarov, Rui-Peng Li, Thibaut Soulestin, Fabrice Domingues Dos Santos, He-Zhi He, P. Taylor, Lei Zhu   +9 more
semanticscholar   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Titanate-based high-entropy perovskite oxides relaxor ferroelectrics

Scientific Reports
Different combinations of monovalent and trivalent A-cations in high-entropy perovskite oxides (HEPOs) were investigated. The multicomponent (A′0.2A″0.2Ba0.2Sr0.2Ca0.2)TiO3 (A′ = Na+, K+, A″ = Bi3+, La3+) perovskite compounds were successfully ...
Ketkaeo Bunpang, Suparat Singkammo, David P. Cann, Natthaphon Raengthon   +3 more
doaj   +1 more source

Bismuth zinc niobate: BZN-BT, a new lead-free BaTiO3-based ferroelectric relaxor?

Journal of Advanced Dielectrics, 2020
The novel lead-free ferroelectric relaxor system x(Bi(Zn2/3 Nb1/3)O3)(1 − x)BaTiO3 (xBZN(1 − x)BT) has received interest as a high-capacity relaxor dielectric material.
Jessica Marshall, David Walker, Pam Thomas   +2 more
doaj   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Frequency and temperature dependent electric polarization, relaxation, and transport properties of Mo and W doped BaTiO3

Results in Physics, 2021
In this article, we report the structural, dielectric, electronic, and transport properties of Mo and W doped BaTiO3 ceramic. The BaTiO3 (BTO), BaTi0.85Mo0.15O3 (BTMO), and BaTi0.85W0.15O3 (BTWO) samples were prepared by double sintering ceramic ...
Md. Sarowar Hossain, Sankar Kumar Das, Md. Moniruzzaman, M.A. Hakim, M.A. Basith   +4 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source