Results 111 to 120 of about 654,704 (296)

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Counterfactual Quantum Control: Review and Applications

open access: yesQuantum Reports
Counterfactual quantum control is a novel control method, in which no actual material particles or energy are transported and exchanged between the controller and the controlled.
Na Hai   +5 more
doaj   +1 more source

Transport of indirect excitons in ZnO quantum wells

open access: yes, 2015
We report on spatially- and time-resolved emission measurements and observation of transport of indirect excitons in ZnO/MgZnO wide single quantum ...
Andreakou, Peristera   +10 more
core   +4 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Quantum Observables and Effect Algebras [PDF]

open access: yesInternational Journal of Theoretical Physics, 2017
We study observables on monotone $ $-complete effect algebras. We find conditions when a spectral resolution implies existence of the corresponding observable. The set of sharp elements of a monotone $ $-complete homogeneous effect algebra is a monotone $ $-complete subalgebra. In addition, we study compatibility in orthoalgebras.
openaire   +3 more sources

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

open access: yesAdvanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi   +8 more
wiley   +1 more source

Observation of quantum-classical transition behavior of LGI in a dissipative quantum gas

open access: yesPhysical Review Research
The Leggett-Garg inequality (LGI) is a powerful tool for distinguishing between quantum and classical properties in studies of macroscopic systems.
Qinxuan Peng   +6 more
doaj   +1 more source

Classical limit of the quantum Zeno effect

open access: yes, 2009
The evolution of a quantum system subjected to infinitely many measurements in a finite time interval is confined in a proper subspace of the Hilbert space.
Dimassi M   +8 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Observation of quantum droplets in a heteronuclear bosonic mixture

open access: yesPhysical Review Research, 2019
We report on the formation of heteronuclear quantum droplets in an attractive bosonic mixture of ^{41}K and ^{87}Rb. We observe long-lived self-bound states, both in free space and in an optical waveguide.
C. D'Errico   +7 more
doaj   +1 more source

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