Results 81 to 90 of about 35,049 (264)

Influence of electric field on the Eu+3 photolumiscence in lead-free ferroelectric Na1/2Bi1/2TiO3

, 2015
Eu modified Na1/2Bi1/2TiO3 (NBT) was investigated for electric-field induced Eu+3 photoluminescence (PL) and structural changes. Detailed analysis revealed that below a critical Eu composition electric field irreversibly suppresses the structural ...
Kalaskar, Abhijeet, Ranjan, Rajeev, Rao, Badari Narayana, Thomas, Tiju   +3 more
core   +1 more source

Morphotropic Phase Boundary in Graft Poly(Vinylidene Fluoride‐co‐Tetrafluoroethylene) With High Curie Temperature

Advanced Science, EarlyView.
The first TrFE‐free ferroelectric polymers exhibiting concurrently a morphotropic phase boundary and high Curie temperature are reported through a grafting strategy, which is completely different from previous methods to design MPB by composition and irradiation. This finding offers a cost‐effective solution to decode the long‐standing inverse relation
Zekai Fei, Chenyi Li, Yuquan Liu, Yang Li, Yun Zhang, Huamin Zhou, Yang Liu   +6 more
wiley   +1 more source

Unital quantum operators on the Bloch ball and Bloch region

, 2003
For one qubit systems, we present a short, elementary argument characterizing unital quantum operators in terms of their action on Bloch vectors. We then show how our approach generalizes to multi-qubit systems, obtaining inequalities that govern when a `
A. Fujiwara, C. King, E.C.G. Sudarshan, G. Kimura, H. T. Williams, J. de Pillis, L. Jakobczyk, L.J. Landau, M.B. Ruskai, M.D. Choi, P. S. Bourdon   +10 more
core   +1 more source

Reverse Weak Polarity‐Induced Ordered Layer Control for Enhanced Second‐Harmonic Generation in Ultraviolet Nonlinear Optical Crystals

Advanced Science, EarlyView.
Reverse Weak Polarity‐Induced Ordered Layer Control strategy, optimizing the design of layered structures, has been successfully designed. By leveraging inhomogeneous field of units to replace isotropic fields of metal cations, polar layers realize controllable layer stacking via a “layer→linker→layer” polarity transfer.
Lingli Wu, Chensheng Lin, Bing‐Xuan Li, Huixin Fan, Lingfei Lv, Shunda Yang, Tao Yan, Min Luo   +7 more
wiley   +1 more source

Achieving enhanced piezoelectric performance in three-dimensional interconnected BCZT piezoelectric porous ceramics

Journal of Materiomics
Piezoelectric ceramics are widely used in the field of sensors due to their ability to sensitively respond to minor stimuli. (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) piezoelectric ceramics have attracted extensive attention in the sensing field due to their ...
Chenhe Xia, Xiaoying Feng, Jie Xu, Ziyao Wei, Mupeng Zheng, Yudong Hou, Feng Gao   +6 more
doaj   +1 more source

Quantifying Magnetic Anisotropy of Ferroelectric Fe(II) Square‐Pyramidal Systems Using Torque Magnetometry

Advanced Science, EarlyView.
Five‐coordinate, square‐pyramidal Fe(II) complexes adopting polar, non‐centrosymmetric crystal structures exhibit exceptionally large easy‐axis magnetic anisotropy. Ligand‐driven distortions critically control the anisotropy, and the dielectric, Polarization vs Elecric field and piezo response studies confirm intrinsic polarization, positioning these ...
Vijaya Thangaraj, Gemma K. Gransbury, Deepanshu Chauhan, Dipanti Borah, Gopalan Rajaraman, Mauro Perfetti, Maheswaran Shanmugam   +6 more
wiley   +1 more source

Enhanced Lattice Polarization and Directed Charge Transport Toward Pt Surface Sites Accelerate the Volmer Step in Piezocatalytic H2 Evolution on Co‐Doped BiFeO3

Advanced Energy Materials, EarlyView.
We report a Pt‐decorated Co‐doped BiFeO3 (Pt/BCFO) piezocatalyst achieving an H2 evolution rate of 1896.4 µmol g−1 h−1. Co‐doping induces lattice distortion, enhancing piezoelectric polarization, while Pt sites promote water dissociation. Embedded in a poly(vinylidene fluoride) matrix, Pt/BCFO enables efficient mechanical energy harvesting and catalyst
Dian Zhang, Xiaowen Ruan, Lin Wang, Bin Cheng, Minghua Xu, Chunsheng Ding, Hongwei Huang, Sai Kishore Ravi   +7 more
wiley   +1 more source

The impact of digital innovation on labor share: Evidence from Chinese firms

International Review of Economics & Finance
We use data from listed Chinese companies spanning the years 2000–2021 to study the impact of digital innovation on labor share. Our findings reveal a significant role of digital innovation in enhancing firms' labor share, which changes the factor ...
Tingyu Liu, Peng Huang, Qiaoru Wang
doaj   +1 more source

Achieving outstanding comprehensive performance with high piezoelectricity in CaBi2Nb2O9-based high-temperature piezoelectric ceramics via multi-field coupling strategy

Journal of Materiomics
Aurivillius phase CaBi2Nb2O9 (CBNO) ceramic with an ultrahigh Curie temperature (TC) of ∼934 °C shows huge potential in high-temperature piezoelectric applications.
Changbai Long, Anwei Xu, Ziqian Su, Wei Ren, Laijun Liu, Xiangdong Ding   +5 more
doaj   +1 more source

J/\psi dissociation cross sections in a relativistic quark model

, 2003
We calculate the amplitudes and the cross sections of the charm dissociation processes J/\psi \pi => D \bar D, D* \bar D, D \bar D*, D* \bar D* within a relativistic constituent quark model.
Ivanov, Mikhail A., Korner, Juergen G., Santorelli, Pietro   +2 more
core   +1 more source