Results 251 to 260 of about 1,417,759 (289)

Lead‐Free Double Perovskites for Perovskite Solar Cells

Solar RRL, 2019
Perovskite solar cells (PSCs) have achieved a high power conversion efficiency (PCE) with a credible certified value over 25%. More efforts have been devoted to the development of stable and ecofriendly perovskite materials. Lead‐free double perovskites (LFDPs) are a noteworthy choice as a photoactive layer because of their favorable photovoltaic (PV ...
Po-Kai Kung, Ming-Hsien Li, Pei-Ying Lin, Jia-Yun Jhang, Martina Pantaler, Doru C. Lupascu, Giulia Grancini, Peter Chen   +7 more
openaire   +2 more sources

Magnetism in Double Perovskites

Journal of Superconductivity and Novel Magnetism, 2012
Double-perovskite compounds with general formula ABB′O6, have attracted a lot of attention in recent years due to a variety of properties exhibited by them. In this paper, we will review our recent study on a number of double-perovskite compounds, namely La-doped Sr2FeMoO6, Cr-based family of compounds, Sr2CrXO6 (X=W, Re, Os), characterized with ...
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Differentiating between perovskite and double perovskite nanocrystals

2023
National Research Foundation (NRF)
Mishra, Pritish, Zhang, Mengyuan, Lam, Yeng Ming, Hippalgaonkar, Kedar   +3 more
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Magnetism of the double perovskite Sr2FeMoO6

Journal of Magnetism and Magnetic Materials, 2003
Abstract We have completed a systematic study of the magnetization of a single crystal of double perovskite Sr 2 FeMoO 6 over a wide range of temperatures and fields. Near the ordering temperature of 405.0 K, the magnetization is described by critical exponents β =0.50±0.03 and γ =1.20±0.03.
S.E. Lofland, T. Scabarozi, Y. Moritomo, Sh. Xu   +3 more
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Multiferroicity in double perovskite Y2CoMnO6

AIP Conference Proceedings, 2012
We have synthesized the double perovskite Y2CoMnO6. The crystal structure is identified to be monoclinic (space group P21/n). We report detailed analysis of this material using XRD, magnetization, resistivity and dielectric constant measurements. A material from the same series, Lu2CoMnO6 has been reported to have E-type antiferromagnetic structure in ...
G. Sharma, J. Saha, S. Patnaik
openaire   +1 more source

Ba2PrPtO6: A novel double perovskite

Journal of Solid State Chemistry, 1992
The structure of the Ba 2 PrPtO 6 compound has been determined by X-ray powder diffraction and profile analysis and has been confirmed by TEM and HREM. The structure of this material is made up of alternating [PtO 6 ] and [PrO 6 ] octahedra along the three a, b , and c directions. Magnetic properties are also presented and discussed.
U. Amador, C.J.D. Hetherington, E. Moran, M.A. Alario-Franco   +3 more
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Magnetoresistance stories of double perovskites

Pramana, 2015
Tunnelling magnetoresistance (TMR) in polycrystalline double perovskites has been an important research topic for more than a decade now, where the nature of the insulating tunnel barrier is the core issue of debate. Other than the nonmagnetic grain boundaries as conventional tunnel barriers, intragrain magnetic antiphase boundaries (APB) as well as ...
ABHISHEK NAG, SUGATA RAY
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Magnetoresistance in the Double Perovskite Sr2CrMoO6

Journal of Solid State Chemistry, 2000
Abstract The double perovskite Sr 2 CrMoO 6 with Cr 3+ –O–Mo 5+ pairs is ferrimagnetic ( T N =450 K), but there is considerable site disorder. The disorder appears to be responsible for the low value of magnetization. At 5 or 6 T, the negative magnetoresistance (MR) is 2 FeMoO 6 which shows MR upto 27%. Tunneling magnetoresistance behavior of Sr
Arulraj, Anthony, Ramesha, K, Gopalkrishana, J, Rao, CNR   +3 more
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ESR of double-perovskite Sr2FeMoO6

Physica B: Condensed Matter, 2002
Abstract We present an ESR study of Sr 2 FeMoO 6 in the paramagnetic region. A single line at g ≈2 was associated with Fe 3+ ions. The intensity follows Curie–Weiss law in the whole T range. For T >500 K a secondary line is attributed to ferromagnetic (FM) impurities.
M.T Causa, A Butera, M Tovar, J Fontcuberta   +3 more
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Epitaxial Halide Perovskite Lateral Double Heterostructure

ACS Nano, 2017
Epitaxial III-V semiconductor heterostructures are key components in modern microelectronics, electro-optics, and optoelectronics. With superior semiconducting properties, halide perovskite materials are rising as promising candidates for coherent heterostructure devices. In this report, spinodal decomposition is proposed and experimentally implemented
Yiping Wang, Zhizhong Chen, Felix Deschler, Xin Sun, Toh-Ming Lu, Esther A. Wertz, Jia-Mian Hu, Jian Shi   +7 more
openaire   +2 more sources