Results 161 to 170 of about 2,377,765 (304)

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

open access: yesAdvanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng   +11 more
wiley   +1 more source

Floquet amorphous topological orders in a one-dimensional Rydberg glass

open access: yesCommunications Physics
The topological orders in amorphous systems that lack crystalline symmetry have gained considerable attention recently. Here we propose the Floquet amorphous topological matter, among which the topological orders are explored in experimentally accessible
Peng He   +3 more
doaj   +1 more source

Evidence for intrinsic magnetic scatterers in the topological semimetal (Bi2)5(Bi2Se3)7

open access: yes, 2023
Transport measurement on MBE-grown topological semimetal (Bi2)5(Bi2Se3)7 reveal a pronounced Kondo effect. First-principle simulations allow to identify the nature of the associated magnetic scatterers as Bi vacancies.
Gehring, Pascal   +1 more
core  

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

Probing floquet topological phase transition in room-temperature superradiance lattices

open access: yesCommunications Physics
Floquet modulation plays a crucial role in manipulating the phases of quantum matter. However, experimentally characterizing the Floquet topological phase transition, particularly in one-dimensional systems, remains challenging.
Jianhao Dai   +3 more
doaj   +1 more source

Enabling propagation of anisotropic polaritons along forbidden directions via a topological transition. [PDF]

open access: yesSci Adv, 2021
Duan J   +8 more
europepmc   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

Topological Phase Transition by Tuning Central Unit in C3 Symmetric Lattice of Terahertz Photonic Crystals

open access: yesPhotonics
A terahertz band-switchable photonic topological insulator (PTI) composed of a C3-symmetric rod-type photonic crystal is designed. By tuning the size of the central cylinder in the lattice, a topological phase transition can occur in the PTI, and the ...
Zhigang Yan   +6 more
doaj   +1 more source

Randomness in topological models [PDF]

open access: yes, 2010
p. 914-925There are two aspects of randomness in topological models. In the first one, topological idealization of random patterns found in the Nature can be regarded as planar representations of three-dimensional lattices and thus reconstructed in the
TARCZEWSKI, Romuald, BOBER, Waldemar
core  

Measuring the Hall Effect in Hysteretic Materials

open access: yesAdvanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya   +6 more
wiley   +1 more source

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