Results 91 to 100 of about 648,121 (288)

Transition frequency shifts with fine structure constant variation for Fe II: Breit and core-valence correlation correction

, 2007
Transition frequencies of Fe II ion are known to be very sensitive to variation of the fine structure constant \alpha. The resonance absorption lines of Fe II from objects at cosmological distances are used in a search for the possible variation of ...
C. E. Moore, D. Reimers, I. I. Tupitsyn, K. V. Koshelev, M. G. Kozlov, P. Bogdanovich, P. Molaro, S. A. Levshakov, S. G. Porsev, V. F. Bratsev   +9 more
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Some formal results for the valence bond basis

, 2006
In a system with an even number of SU(2) spins, there is an overcomplete set of states--consisting of all possible pairings of the spins into valence bonds--that spans the S=0 Hilbert subspace. Operator expectation values in this basis are related to the
Anders W. Sandvik, Anderson, Anderson, Balint-Kurti, Bethe, Binder, Bose, Capriotti, Evertz, Fazekas, Figueirido, Gros, Havilio, Havilio, Havilio, Hulthén, K.S.D. Beach, Kivelson, Kohmoto, Kohmoto, Liang, Liang, Lin, Lou, Majumdar, Marshall, Nussinov, Pauling, Poilblanc, Raman, Ramasesha, Read, Read, Rokhsar, Rumer, Sachdev, Sachdev, Sandvik, Sandvik, Santoro, Senthil, Sondhi, Soos, Sutherland, Sutherland, Syljuåsen, Vishwanath   +46 more
core   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

Advanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang, Muhammad Adib Abdillah Mahbub, Bashir Eid, Thomas Quast, Jian Zhang, Ridha Zerdoumi, Xin Wang, Sabine Seisel, Wangcheng Zhan, Wolfgang Schuhmann   +9 more
wiley   +1 more source

Partial quenching and chiral symmetry breaking [PDF]

, 2014
Partially quenched chiral perturbation theory assumes that valence quarks propagating on gauge configurations prepared with sea quarks of different masses will form a chiral condensate as the valence quark mass goes to zero.
Creutz, Michael
core  

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

Impelemetation of Devotional Rights on Accessibility and Communication Based on Undang-Undang Nomor 8 Tahun 2016 Concerning Disabilities

Indonesian Journal of Disability Studies, 2018
This research discusses the implementation of the right of the Deaf to accessibility and communication by the Government of Indonesia based on Law No. 8 of 2016 concerning Persons with Disabilities.
Hendro Valence Luhulima
doaj   +1 more source

Electron self-trapping in intermediate-valent SmB6

, 1999
SmB6 exhibits intermediate valence in the ground state and unusual behaviour at low temperatures. The resistivity and the Hall effect cannot be explained either by conventional sf-hybridization or by hopping transport in an impurity band.
A. Hasegawa, A. Yanase, B. Gorshunov, B.I. Shklovskii, C. Varma, D.P. Young, E.E. Vainstein, F.C. Zhang, G. Güntherodt, G. Travaglini, H. Harima, H. Ohta, I. Bat’ko, I.G. Lang, J. Neuenschwander, J.C. Cooley, J.C. Cooley, J.C. Nickerson, K. A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.W.H. Stevens, M. Dressel, N.E. Sluchanko, P.A. Alekseev, R.M. Martin, S. Curnoe, S. Gabáni, S. Massida, S.E. Barnes, T. Kasuya, T. Nanba, T. Portengen, V.I. Belinicher, V.J. Emery, Y. Toyozawa   +39 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source