Results 41 to 50 of about 86,392 (294)

Cationic vacancy induced room-temperature ferromagnetism in transparent conducting anatase Ti_{1-x}Ta_xO_2 (x~0.05) thin films

, 2012
We report room-temperature ferromagnetism in highly conducting transparent anatase Ti1-xTaxO2 (x~0.05) thin films grown by pulsed laser deposition on LaAlO3 substrates. Rutherford backscattering spectrometry (RBS), x-ray diffraction (XRD), proton induced
Ariando, Barman, A. Roy, Breese, M. B. H., Dai, Y., Dhar, S., Ding, J., Feng, Y. P., Hilgenkamp, H., Motapothula, M., Neuber, G., Qi, D. -C., Ruebhausen, M., Rusydi, A., Santoso, I., Venkatesan, T., Wee, A. T. S., Yakovlev, N. L., Yang, K., Yi, J. B.   +18 more
core   +1 more source

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source

F K-edge XAS as a tool to examine F environments in complex inorganic systems

Journal of Synchrotron Radiation
As part of an effort to establish the principles and application of F K-edge X-ray absorption spectra to complex inorganic systems, the F K-edge spectra of a range of glasses, minerals and synthetic crystalline compounds are presented and discussed in ...
Malin C. Dixon Wilkins, John M. Bussey, John S. McCloy   +2 more
doaj   +1 more source

Spectral Decomposition of X-ray Absorption Spectroscopy Datasets: Methods and Applications

Crystals, 2020
X-ray absorption spectroscopy (XAS) today represents a widespread and powerful technique, able to monitor complex systems under in situ and operando conditions, while external variables, such us sampling time, sample temperature or even beam position ...
Andrea Martini, Elisa Borfecchia
doaj   +1 more source

Polaronic effect in the x-ray absorption spectra of La1-x Ca x MnO3 manganites. [PDF]

, 2019
X-ray absorption spectroscopy (XAS) is performed to study changes in the electronic structures of colossal magnetoresistance (CMR) and charged ordered (CO) La1-x Ca x MnO3 manganites with respect to temperature.
Chen, JM, Chuang, Y-D, Huang, SW, Lee, JF, Lee, JM, Lin, J-Y, Liu, YT, Schoenlein, RW   +7 more
core  

X-ray absorption spectroscopy study of diluted magnetic semiconductors: Zn1-xMxSe (M = Mn, Fe, Co) and Zn1-xMnxY (Y = Se, Te)

, 2000
We have investigated 3d electronic states of doped transition metals in II-VI diluted magnetic semiconductors, Zn1-xMxSe (M = Mn, Fe, Co) and Zn1-xMnxY (Y = Se, Te), using the transition-metal L2,3-edge X-ray absorption spectroscopy (XAS) measurements ...
A. Franciosi, A. Fujimori, A. Kisiel, A. Wall, A. Wall, B. E. Larson, B. T. Jonker, B. T. Jonker, C. Chen, C. K. Shih, C. T. Chen, C. T. Chen, D. W. Lynch, E. Dagotto, E. R. Gagliano, F. M. F. de Groot, G. van der Laan, G. van der Laan, H. F. Pen, H. Ohno, Hoon Koh, Hyeong-Do Kim, J. K. Furdyna, J. K. Furdyna, J. M. Noras, J. Oleszkiewicz, J. Park, J. Zaanen, J.-H. Park, J.-S. Kim, Jonghyurk Park, K. Lawniczak-Jablonska, K. Lawniczak-Jabłonska, K. M. Colbow, K. Okada, Kwanghyun Cho, L. Ley, M. A. van Veenendaal, M. Taniguchi, M. Taniguchi, Moonsup Han, N. Happo, O. Gunnarsson, O. Gunnarsson, R. Denecke, R. Fiederling, R. Weidemann, S. Koshihara, S.-H. Wei, S.-J. Oh, T. Dietl, T. Mizokawa, T. Uozumi, W. A. Harrison, W. F. Pong, W. F. Pong, Y. D. Kim, Y. D. Kim, Y. Ohno, Y. Ueda, Y.-D. Kim   +60 more
core   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Valence changes associated with the metal-insulator transition in Bi$_{1-x}$La$_x$NiO$_3$

, 2005
Perovskite-type BiNiO$_3$ is an insulating antiferromagnet in which a charge disproportionation occurs at the Bi site. La substitution for Bi suppresses the charge disproportionation and makes the system metallic. We have measured the photoemission and x-
A. Chikamatsu, A. Fujimori, H. Kumigashira, H. Wadati, J. B. Torrance, K. Tanaka, M. Azuma, M. O. Krause, M. Oshima, M. Takano, M. Takizawa, M. Yoshimura, S. Hüfner, S. Ishiwata, T. Mizokawa, T. T. Tran, W. A. Harrison   +16 more
core   +1 more source

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

Advanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu, Changhui Sun, Luyao Wang, Yuhang Cheng, Yi Xin, Xuyun Guo, Hui Li, Valeria Nicolosi, Yuhai Dou, Peng Li, Tianyi Ma, Jie Wang   +11 more
wiley   +1 more source