Results 51 to 60 of about 49,790 (296)

Spin-Coupled Generalized Valence Bond Theory: An Appealing Orbital Theory of the Electronic Structure of Atoms and Molecules [PDF]

, 2022
Thom H. Dunning, David K.C. Cooper, Lu Xu, Peter B. Karadakov   +3 more
openalex   +3 more sources

Two-leg SU(2n) spin ladder: A low-energy effective field theory approach

, 2015
We present a field theory analysis of a model of two SU(2n)-invariant magnetic chains coupled by a generic interaction preserving time reversal and inversion symmetry.
Lecheminant, P., Tsvelik, A. M.
core   +1 more source

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

Advanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya, Baliana Shani, Isaac Holmes‐Gentle, Gerardo T Martinez, Martyn McLachlan, Nicola Seriani, Ludmilla Steier   +6 more
wiley   +1 more source

Phase Diagram of the quadrumerized Shastry-Sutherland Model

, 2002
We determine the phase diagram of a generalized Shastry-Sutherland model, using a combination of dimer- and quadrumer-boson methods and numerical exact diagonalization techniques.
A. Koga, A.V. Chubukov, Andreas Läuchli, B.S. Shastry, C. Knetter, C.H. Chung, D. Carpentier, H. Kageyama, K. Totsuka, K. Ueda, M. Albrecht, M. Albrecht, M. Troyer, M. Troyer, Manfred Sigrist, N. Katoh, N.E. Bonesteel, O.A. Starykh, P.W. Leung, S. Miyahara, S. Sachdev, Stefan Wessel, Th. Jolicoeur, W. Brenig, Weihong Zheng, Y. Takushime, Y. Zukumoto   +26 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Tunable Coordination Number in Non‐Metal‐Introduced Copper Catalysts Enables High‐Performance Electrochemical CO2 Reduction to C2 Products

Advanced Functional Materials, EarlyView.
Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du, Bo Gao, Yixuan Yang, Young In Jo, Dan Qian, Chunhui Xiao, Shujiang Ding, Zhongxiao Song, Ki Tae Nam   +8 more
wiley   +1 more source

The New Resonating Valence Bond Method for Ab-Initio Electronic Simulations

, 2014
The Resonating Valence Bond theory of the chemical bond was introduced soon after the discovery of quantum mechanics and has contributed to explain the role of electron correlation within a particularly simple and intuitive approach where the chemical ...
Sorella, Sandro, Zen, Andrea
core   +1 more source

Dynamic Control of Synaptic Plasticity by Competing Ferroelectric and Trap‐Assisted Switching in IGZO Transistors with Al2O3/HfO2 Dielectrics

Advanced Functional Materials, EarlyView.
A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon, Dong Ho Lee, Seyoung Oh, Jongwon Yoon, Hyo‐Bae Kim, Ji‐Hoon Ahn, Woojin Park, Han Seul Kim, Byungjin Cho   +8 more
wiley   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

Advanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li, Sugang Meng, Huijun Zhang, Alain R. Puente‐Santiago, Zhongliao Wang, Shifu Chen, Mario J. Muñoz‐Batista, Yu‐Ming Zheng, Bo Weng   +8 more
wiley   +1 more source

Impurity-doped Kagome Antiferromagnet: A Quantum Dimer Model Approach

, 2010
The doping of quantum Heisenberg antiferromagnets on the kagome lattice by non-magnetic impurities is investigated within the framework of a generalized quantum dimer model (QDM) describing a) the valence bond crystal (VBC), b) the dimer liquid and c ...
Poilblanc, D., Ralko, A.
core   +3 more sources