Results 21 to 30 of about 45,828 (171)

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

On vector-valued tent spaces and Hardy spaces associated with non-negative self-adjoint operators

, 2015
In this paper we study Hardy spaces associated with non-negative self-adjoint operators and develop their vector-valued theory. The complex interpolation scales of vector-valued tent spaces and Hardy spaces are extended to the endpoint p=1.
Kemppainen, Mikko
core   +1 more source

Near‐Field Optical Detection of Defect‐Stabilized Metallic Islands at the Verwey Transition in Fe3O4

Advanced Functional Materials, EarlyView.
Nanoscale metallic islands emerging across the Verwey transition in thin films of Fe3O4 are imaged using near‐field optical microscopy from mid‐infrared to terahertz frequencies. Recurring across thermal cycles, these disorder‐stabilized islands exhibit distinct transition temperatures.
Kajal Tiwari, Mostafa Ibrahim Shehata Marzouk, Ke Xiao, Malleswararao Tangi, Stuart Stephen Papworth Parkin   +4 more
wiley   +1 more source

Diffusion determines the recurrent graph [PDF]

, 2014
We consider diffusion on discrete measure spaces as encoded by Markovian semigroups arising from weighted graphs. We study whether the graph is uniquely determined if the diffusion is given up to order isomorphism.
Keller, Matthias, Lenz, Daniel, Schmidt, Marcel, Wirth, Melchior   +3 more
core  

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

Advanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Tie Jun Cui, Vincenzo Galdi   +7 more
wiley   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Printing Nacre‐Mimetic MXene‐Based E‐Textile Devices for Sensing and Breathing‐Pattern Recognition Using Machine Learning

Advanced Functional Materials, EarlyView.
This study presents a Ti3C2Tx MXene/WPU nacre‐mimetic nanomaterial as a printable ink for direct‐write printing onto textiles‐based sensors. The resulting wearable device demonstrates high sensitivity, biocompatibility, and mechanical strength. Furthermore, NFC‐enabled humidity sensor produces time‐series data, which informs a machine learning ...
Lulu Xu, Wenqing Chen, Qian Li, Rohit Gupta, Biswajoy Bagchi, Laurence B. Lovat, Manish K. Tiwari   +6 more
wiley   +1 more source

BPS D3-branes on smooth ALE manifolds [PDF]

, 2001
In this talk I review the recent construction of a new family of classical BPS solutions of type IIB supergravity describing 3-branes transverse to a 6-dimensional space with topology $\mathbb{R}^{2}\times$ALE.
Fre', Pietro
core   +1 more source

Local well-posedness for membranes in the light cone gauge

, 2009
In this paper we consider the classical initial value problem for the bosonic membrane in light cone gauge. A Hamiltonian reduction gives a system with one constraint, the area preserving constraint.
A. Abrahams, A. Aurilia, A.E. Fischer, A.M. Molčanov, Alvaro Restuccia, B. Simon, B. Wit de, B. Wit de, B.S. Acharya, B.V. Fedosov, C. Aragone, C. Schmidhuber, E.A. Bergshoeff, E.A. Bergshoeff, E.S. Fradkin, F. Bayen, G. Leibbrandt, H. Koch, I.A. Batalin, I.A. Batalin, J. Arnlind, J. Hoppe, J. Hoppe, J. Scherk, L. Andersson, L.S. Boulton, Lars Andersson, M. Atiyah, M. Bordemann, M. Claudson, M. Kaku, M. Kontsevich, M. Lüscher, M.P. Garciadel Moral, P. Lesky Jr, P. Senjanovic, P.K. Townsend, Paul T. Allen, V. Maz′ya, V. Moncrief, Y. Fourès-Bruhat   +40 more
core   +1 more source

Microstructural Evolution Dominates the Changes in the Thermal Conductivity of Conjugated Polymers Upon Doping

Advanced Functional Materials, EarlyView.
The relationship between the doping induced microstructure and thermal conductivity changes is elucidated for conjugated polymers. Eight conjugated polymers with different doping systems are studied, showing varied thermal conductivity responses based on structural order.
Jiali Guo, Kai Xu, Jesika Asatryan, Matías Jesús Alonso‐Navarro, Osnat Zapata‐Arteaga, Mariavittoria Craighero, Aleksandr Perevedentsev, Renee Kroon, María Mar Ramos, José L. Segura, Jaime Martín, Christian Müller, Juan Sebastián Reparaz, Mariano Campoy‐Quiles   +13 more
wiley   +1 more source