Results 61 to 70 of about 309,890 (334)

Commensurate-incommensurate transition in the chiral Ashkin-Teller model

Physical Review Research, 2022
We investigate the classical chiral Ashkin-Teller model on a square lattice with the corner transfer matrix renormalization group algorithm. We show that the melting of the period-4 phase in the presence of a chiral perturbation takes different forms ...
Samuel Nyckees, Frédéric Mila
doaj   +1 more source

Finite-temperature phase diagram of the Heisenberg-Kitaev model

, 2011
We discuss the finite-temperature phase diagram of the Heisenberg-Kitaev model on the hexagonal lattice, which has been suggested to describe the spin-orbital exchange of the effective spin-1/2 momenta in the Mott insulating Iridate Na2IrO3.
Reuther, Johannes, Thomale, Ronny, Trebst, Simon   +2 more
core   +1 more source

Spectral spaces of countable Abelian lattice-ordered groups [PDF]

Transactions of the American Mathematical Society, 2017
A compact topological space X is spectral if it is sober (i.e., every irreducible closed set is the closure of a unique singleton) and the compact open subsets of X form a basis of the topology of X, closed under finite intersections. Theorem.
F. Wehrung
semanticscholar   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

Information Structures in an Ordered Information System Under Granular Computing View and Their Optimal Selection Based on Uncertainty Measures

International Journal of Computational Intelligence Systems, 2020
Information structures (i-structures) in an ordered information system (OIS) are mathematical structures of the information granules (i-granules) granulated from the data set of this OIS.
Yini Wang, Sichun Wang, Hongxiang Tang
doaj   +1 more source

Ferromagnetism of cold fermions loaded into a decorated square lattice

, 2009
We investigate two-component ultracold fermions loaded into a decorated square lattice, which are described by the Hubbard model with repulsive interactions and nearest neighbor hoppings.
A. Georges, Akihisa Koga, C. J. Pethick, Kazuto Noda, Norio Kawakami, Thomas Pruschke   +5 more
core   +1 more source

HNN Extensions of Quasi-Lattice Ordered Groups and their Operator Algebras [PDF]

Documenta Mathematica, 2017
The Baumslag-Solitar group is an example of an HNN extension. Spielberg showed that it has a natural positive cone, and that it is then a quasi-lattice ordered group in the sense of Nica. We give conditions for an HNN extension of a quasi-lattice ordered
Astrid an Huef, I. Raeburn, Ilija Tolich
semanticscholar   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Signatures of a Deconfined Phase Transition on the Shastry-Sutherland Lattice: Applications to Quantum Critical SrCu_{2}(BO_{3})_{2}

Physical Review X, 2019
We study a possible deconfined quantum phase transition in a realistic model of a two-dimensional Shastry-Sutherland quantum magnet, using both numerical and field theoretic techniques.
Jong Yeon Lee, Yi-Zhuang You, Subir Sachdev, Ashvin Vishwanath   +3 more
doaj   +1 more source

Trimer quantum spin liquid in a honeycomb array of Rydberg atoms

Communications Physics, 2023
Quantum spin liquids are elusive but paradigmatic examples of strongly correlated quantum states that are characterized by long-range quantum entanglement.
Milan Kornjača, Rhine Samajdar, Tommaso Macrì, Nathan Gemelke, Sheng-Tao Wang, Fangli Liu   +5 more
doaj   +1 more source