Results 21 to 30 of about 15,119 (267)

Functionalization of Graphene and Dielectric Property Relationships in PVDF/graphene Nanosheets Composites

International Journal of Electrochemical Science, 2018
In this paper, a series of the functionalized graphenes, such as graphene oxide (GO), reduced graphene oxide (rGO), carboxylated graphene oxide (GOCOOH), reduce carboxylated graphene oxide (rGOCOOH), fluorinated graphene oxide (GOF), and reduce ...
Xuewen Zheng, Huitao Yu, Shuangshuang Yue, Ruiguang Xing, Qiwei Zhang, Yunying Liu, Bangwen Zhang   +6 more
doaj   +1 more source

Structural properties of two inequivalent Cs(1) and Cs(2) sites in perovskite tricaesium pentahalogencobaltate, Cs3CoX5 (X = Cl, Br)

AIP Advances, 2017
The local structures of Cs3CoX5 (X = Cl, Br) were examined using nuclear magnetic resonance (NMR) and magic angle spinning (MAS) NMR experiments. The two inequivalent Cs(1) and Cs(2) sites in two compounds were clearly distinguished based on static NMR ...
Ae Ran Lim, Sung Soo Park, Jin-Hae Chang
doaj   +1 more source

Fractional Quantum Ferroelectricity

Nature Communications, 2023
Abstract For an ordinary ferroelectric, the magnitude of the spontaneous electric polarization is at least one order of magnitude smaller than that resulting from the ionic displacement of the lattice vectors, and the direction of the spontaneous electric polarization is determined by the point group of the ferroelectric.
Junyi Ji, Guoliang Yu, Changsong Xu, H. J. Xiang   +3 more
openaire   +3 more sources

Hollow Microspherical Li[Li0.24Ni0.38Mn0.38]O2 as Cathode Material for Lithium-Ion Batteries with Excellent Electrochemical Performance

International Journal of Electrochemical Science, 2018
Li-rich hollow microspherical Li[Li0.24Ni0.38Mn0.38]O2 sample was successfully synthesized by a coprecipitation approach followed by high-temperature calcinations.
Shumei Dou, Ping Li, Huiqin Li
doaj   +1 more source

Ferroelectric or non-ferroelectric: Why so many materials exhibit “ferroelectricity” on the nanoscale [PDF]

Applied Physics Reviews, 2017
Ferroelectric materials have remained one of the major focal points of condensed matter physics and materials science for over 50 years. In the last 20 years, the development of voltage-modulated scanning probe microscopy techniques, exemplified by Piezoresponse force microscopy (PFM) and associated time- and voltage spectroscopies, opened a pathway to
Rama K. Vasudevan, Nina Balke, Peter Maksymovych, Stephen Jesse, Sergei V. Kalinin   +4 more
openaire   +2 more sources

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Tailoring optical nonlinearity and gamma-ray shielding in $$\:{\mathbf{B}\mathbf{i}}_{2}{\mathbf{O}}_{3}$$ -modified borate–BCZT glasses

Scientific Reports
This study investigates the structural, optical, nonlinear, and gamma-ray shielding properties of $$\:{\text{B}\text{i}}_{2}{\text{O}}_{3}$$ – $$\:{\text{B}}_{2}{\text{O}}_{3}$$ –BCZT glasses with composition x $$\:{\text{B}\text{i}}_{2}{\text{O}}_{3}$$ +
Esraa A. Gaber, S. A. Hussien, E. M Saad, Moukhtar A. Hassan   +3 more
doaj   +1 more source

A Self-Powered Broadband Photodetector with High Photocurrent Based on Ferroelectric Thin Film Using Energy Band Structure Design

Crystals
Self-powered photodetectors have the advantages of high sensitivity, sustainability, and small size and have become a research hotspot in advanced optoelectronic systems.
Xing Gao, Xin Song, Shan Zhang, Xinxiang Yang, Pei Han, Liwen Zhang, Chunxiao Lu, Xihong Hao, Yong Li   +8 more
doaj   +1 more source

Ferroelectric behavior and spectroscopic properties of La-Modified lead titanate nanoparticles prepared by a sol-gel method

Heliyon, 2020
The sol-gel method was used to prepare perovskite type (Pb1-1.5x Lax□0.5x)TiO3 (PLT) ceramics with x = 0.21, 0.22, 0.23, 0.24, 0.25 in order to investigate their structural, optical, and dielectric properties.
M. Mostafa, Z.A. Alrowaili, G.M. Rashwan, M.K. Gerges   +3 more
doaj   +1 more source

Interface Engineering and Device Applications of 2D Ultrathin Film/Ferroelectric Copolymer P(VDF‐TrFE)

Advanced Physics Research, 2023
Ferroelectric materials with switchable electrical polarization have been widely used in tunnel junctions, non‐volatile memories, and field‐effect transistors.
Zhaoying Dang, Feng Guo, Zehan Wu, Kui Jin, Jianhua Hao   +4 more
doaj   +1 more source