Results 101 to 110 of about 681,943 (375)

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Core Technologies of Sugarcane Chopper Harvester Extractor: A Critical Review

Agriculture
This review has systematically assessed the critical technologies of impurity removal fans in segmental sugarcane harvesters, highlighting their impact on minimizing harvester impurity rates.
Weiqing Li, Shaochun Ma, Baocheng Zhou, Wenzhi Li, Peng Huo, Jun Qian   +5 more
doaj   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Tuning Intermediate Band Solar Cell Efficiency: The Interplay of Electric Fields, Composition, Impurities, and Confinement

Nanomaterials
In this study, we investigated the influence of structural parameters, including active region dimensions, electric field intensity, In-composition, impurity position, and potential profiles, on the energy levels, sub-gap transitions, and photovoltaic ...
Hassan Abboudi, Redouane En-nadir, Mohamed A. Basyooni-M. Kabatas, Ayoub El Baraka, Ilyass Ez-zejjari, Haddou El Ghazi, Ahmed Sali   +6 more
doaj   +1 more source

Hidden Kondo Effect in a Correlated Electron Chain

, 1998
We develop a general Bethe Ansatz formalism for diagonalizing an integrable model of a magnetic impurity of arbitrary spin coupled ferro- or antiferromagnetically to a chain of interacting electrons. The method is applied to an open chain, with the exact
A. A. Zvyagin, A. A. Zvyagin, A. A. Zvyagin, A. A. Zvyagin, A. Furusaki, A. Gonzáles-Ruiz, A. M. Tsvelik, B. Sutherland, C. K. Lai, D.-H. Lee, E. K. Sklyanin, F. H. L. Essler, F. H. L. Essler, H. Frahm, H. J. de Vega, H. Johannesson, I. V. Cherednik, N. Andrei, N. Andrei, P. Fendley, P. Fendley, P. Fröjdh, P. Schlottmann, P. Schlottmann, V. E. Korepin, Y. Wang, Y. Wang, Y. Wang   +27 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Poloidal structure of the edge parallel flow in H-mode, L-mode and I-mode confinement regimes

Nuclear Fusion
Impurity profiles have been measured with the edge high field side (HFS) and low field side (LFS) charge exchange recombination spectroscopy suite at ASDEX Upgrade enabling the study of the poloidal structure of the edge parallel flow in H-mode, L-mode ...
D.J. Cruz-Zabala, E. Viezzer, P. Cano-Megias, M. Cavedon, R. Dux, U. Plank, T. Pütterich, K. McKay, A. Rodriguez-Gonzalez, M. Garcia-Munoz, the ASDEX Upgrade Team   +10 more
doaj   +1 more source

Magnetic Impurity in a Metal with Correlated Conduction Electrons: An Infinite Dimensions Approach

, 1997
We consider the Hubbard model with a magnetic Anderson impurity coupled to a lattice site. In the case of infinite dimensions, one-particle correlations of the impurity electron are described by the effective Hamiltonian of the two-impurity system.
A. C. Hewson, A. Furusaki, A. Georges, A. M. Tsvelick, A. Schiller, A. Schiller, Benny Davidovich, C. M. Varma, D. H. Lee, D. Vollhardt, E. Müller-Hartmann, G. Khaliullin, K. Itai, M. J. Rozenberg, M. Jarrell, N. E. Bickers, O. Gunnarsson, O. Gunnarsson, P. Coleman, P. Fulde, P. Fulde, P. Phillips, S. Tornow, T. Brugger, T. Schork, T. Schork, V. Zevin, W. K. A. Georges, W. Metzner, Y. M. Li   +29 more
core   +1 more source

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source