Results 71 to 80 of about 28,481 (293)

Magnetodielectric effect of Bi6Fe2Ti3O18 film under an ultra-low magnetic field

, 2006
Good quality and fine grain Bi6Fe2Ti3O18 magnetic ferroelectric films with single-phase layered perovskite structure have been successfully prepared via metal organic decomposition (MOD) method.
Du X F, Fuierer P, J Lu, Kubel F, Kurobe A, L J Qiao, Pierre A C, W Y Chu, X Q Ma   +8 more
core   +1 more source

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

Stable Sn/Pb-Based Perovskite Solar Cells with a Coherent 2D/3D Interface

iScience, 2018
Summary: Low-band-gap metal halide perovskite semiconductor based on mixed Sn/Pb is a key component to realize high-efficiency tandem perovskite solar cells. However, the mixed perovskites are unstable in air due to the oxidation of Sn2+. To overcome the
Ziming Chen, Meiyue Liu, Zhenchao Li, Tingting Shi, Yongchao Yang, Hin-Lap Yip, Yong Cao   +6 more
doaj   +1 more source

A three-order-parameter bistable magnetoelectric multiferroic metal

Nature Communications, 2020
A room temperature single-phase multiferroic with large and strongly coupled polarization and magnetization is a long-sought goal in multiferroics research.
Andrea Urru, Francesco Ricci, Alessio Filippetti, Jorge Íñiguez, Vincenzo Fiorentini   +4 more
doaj   +1 more source

Crystal-Site-Based Artificial Neural Networks for Material Classification

Crystals, 2021
In materials science, crystal structures are the cornerstone in the structure–property paradigm. The description of crystal compounds may be ascribed to the number of different atomic chemical environments, which are related to the Wyckoff sites.
Juan I. Gómez-Peralta, Nidia G. García-Peña, Xim Bokhimi   +2 more
doaj   +1 more source

2-Terminal CIGS-perovskite tandem cells: A layer by layer exploration

Solar Energy, 2020
This paper focuses on the development of 2-terminal CIGS-perovskite tandem solar cells by exploring a range of stack sequences and synthetic procedures for depositing the associated layers. In the end, we converged at a stack sequence composed of SLG/Mo/CIGS/CdS/i-ZnO/ZnO:Al/NiO/PTAA/Perovskite/LiF/PCBM/SnO2/ITO.
Jacobsson, T. Jesper, Hultqvist, Adam, Svanström, Sebastian, Riekehr, Lars, Cappel, Ute B., Unger, Eva, Rensmo, Håkan, Johansson, Erik M. J., Edoff, Marika, Boschloo, Gerrit   +9 more
openaire   +3 more sources

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

Advanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu, Florian Maudet, Thanh Luan Phan, Wassim Hamouda, Richard Schroedter, Ahmet Samil Demirkol, Ronald Tetzlaff, Veeresh Deshpande, Catherine Dubourdieu   +8 more
wiley   +1 more source

Bandwidth-disorder phase diagram of half doped layered manganites

, 2006
Phase diagrams in the plane of $r_A$ (the average ionic radius, related to one-electron bandwidth $W$) and $\sigma^2$ (the ionic radius variance, measuring the quenched disorder), or ``bandwidth-disorder phase diagrams'', have been established for ...
A. Asamitsu, J. P. He, M. Uchida, R. Kumai, R. Mathieu, T. Arima, X. Z. Yu, Y. Kaneko, Y. Matsui, Y. Moritomo, Y. Tokura, Y. Tomioka   +11 more
core   +1 more source

The formation of boundary clinopyroxenes and associated glass veins in type B1 CAIs [PDF]

, 2009
We used focused ion beam thin section preparation and scanning transmission electron microscopy (FIB/STEM) to examine the interfacial region between spinel and host melilite for spinel grains in type B1 inclusions from the Allende and Leoville ...
Abreu, Armstrong, Bacon, Barber, Barber, Beckett, Beckett, Beckett, Bernatowicz, Bleiner, Blum, Blum, Bradley, Caillet, Caillet, Cain, Campbell, Clayton, Connolly, Connolly, Connolly, Croat, Daulton, Daulton, Fahey, Floss, Fransolet, Gaetani, Giannuzzi, Giannuzzi, Goresy, Gray, Greshake, Grossman, Grossman, Grossman, Heaney, Hill, Ireland, Ito, Keller, Keller, Kennedy, Kieffer, Komorowski, Kuehner, Kurat, Lee, Lin, Lin, Lundstrom, MacPherson, MacPherson, MacPherson, Marvin, Mendybaev, Nakamura, Nguyen, Obst, Overwijk, Palme, Paque, Paque, Paque, Peters, Prenitzer, Reid, Richter, Richter, Richter, Rives, Simon, Simon, Simon, Simon, Stolper, Stolper, Streck, Stroud, Sylvester, Vidal, Weber, Wei, Wirth   +83 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source