Results 101 to 110 of about 863,168 (361)

Computational Modeling of Reticular Materials: The Past, the Present, and the Future

Advanced Materials, EarlyView.
Reticular materials are advanced materials with applications in emerging technologies. A thorough understanding of material properties at operating conditions is critical to accelerate the deployment at an industrial scale. Herein, the status of computational modeling of reticular materials is reviewed, supplemented with topical examples highlighting ...
Wim Temmerman, Ruben Goeminne, Kuber Singh Rawat, Veronique Van Speybroeck   +3 more
wiley   +1 more source

Nonlocal Conduction in a Metawire

Advanced Materials, Volume 37, Issue 13, April 2, 2025.
A 1D metawire composed of twisted copper wires is designed and realized. This metamaterial exhibits pronounced effects of nonlocal electric conduction according to Ohm's law. The current at one location not only depends on the electric field at that location but also on other locations.
Julio Andrés Iglesias Martínez, Yi Chen, Ke Wang, Martin Wegener   +3 more
wiley   +1 more source

Interface Topology Driven Loss Minimization in Integrated Photonics: THz Ultrahigh‐Q Cavities and Waveguides

Advanced Materials, EarlyView.
Compact, robust, and ultralow‐loss on‐chip photonic devices are essential for densely integrated photonic chips. Here, the underlying radiation mechanism in topological valley edge states is unveiled and a new methodology of interface topology driven bandgap and wavevector engineering is proposed to thoroughly suppress their radiation losses, thereby ...
Zhonglei Shen, Yi Ji Tan, Wenhao Wang, Thomas Caiwei Tan, Ruqiang Yan, Liuyang Zhang, Ranjan Singh   +6 more
wiley   +1 more source

Practical Considerations in the Design and Use of Non‐Crystalline Metal–Organic Frameworks

Advanced Materials, EarlyView.
This review explores the emerging field of non‐crystalline MOFs ‐ amorphous, liquid, and glassy forms ‐ highlighting how they differ from traditional crystalline MOFs. It discusses their unique synthesis strategies, fundamental principles, and diverse applications.
Hamidreza Mahdavi, Farnaz Zadehahmadi, Mehran Arzani, Leena Melag, Ashley L. Sutton, Muhammad M. Sadiq, Zongli Xie, Matthew R. Hill, Benny D. Freeman   +8 more
wiley   +1 more source

AI‐Driven Defect Engineering for Advanced Thermoelectric Materials

Advanced Materials, EarlyView.
This review presents how AI accelerates the design of defect‐tuned thermoelectric materials. By integrating machine learning with high‐throughput data and physics‐informed representations, it enables efficient prediction of thermoelectric performance from complex defect landscapes.
Chu‐Liang Fu, Mouyang Cheng, Nguyen Tuan Hung, Eunbi Rha, Zhantao Chen, Ryotaro Okabe, Denisse Córdova Carrizales, Manasi Mandal, Yongqiang Cheng, Mingda Li   +9 more
wiley   +1 more source

High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer

Advanced Materials, EarlyView.
A crystalline 2D polybenzimidazole polymer (2DPBI), incorporating a porphyrin‐based π‐system linked via 1,3‐diazole units, is synthesized on the water surface over large areas. The 2DPBI thin‐film exhibits high charge carrier mobility (≈240 cm2 V−1 s−1, measured by terahertz spectroscopy), strong photoresponse, and band‐like transport, enabling ...
Anupam Prasoon, Preetam Dacha, Heng Zhang, Elif Unsal, Mike Hambsch, Alexander Croy, Shuai Fu, Nguyen Ngan Nguyen, Kejun Liu, Haoyuan Qi, Sein Chung, Minyoung Jeong, Lei Gao, Ute Kaiser, Kilwon Cho, Hai I. Wang, Renhao Dong, Gianaurelio Cuniberti, Mischa Bonn, Stefan C. B. Mannsfeld, Xinliang Feng   +20 more
wiley   +1 more source

On the eigenvalues and Seidel eigenvalues of chain graphs

Discrete Applied Mathematics
In this paper we consider the eigenvalues and the Seidel eigenvalues of a chain graph. An$\dbar$elić, da Fonseca, Simić, and Du \cite{andelic2020tridiagonal} conjectured that there do not exist non-isomorphic cospectral chain graphs with respect to the adjacency spectrum. Here we disprove this conjecture.
Zhuang Xiong, Yaoping Hou
openaire   +2 more sources

Geometric Bounds for Eigenvalues of Markov Chains

, 1991
We develop bounds for the second largest eigenvalue and spectral gap of a reversible Markov chain. The bounds depend on geometric quantities such as the maximum degree, diameter and covering number of associated graphs. The bounds compare well with exact
P. Diaconis, D. Stroock
semanticscholar   +1 more source

Upper bounds for eigenvalues of a nonlinear eigenvalue problem

Journal of Mathematical Analysis and Applications, 1978
with compact, positive definite operators A, B in a complex separable Hilbert space. Turner [ll, 121 has studied this problem (see also Weinberger [13], Eisenfeld [4], W erner [14], Langer [S]). He describes the spectrum and obtains variational principles for the eigenvalues; furthermore he gives some estimates and bounds for the eigenvalues.
openaire   +3 more sources

Quantum Emitters in Rhombohedral Boron Nitride

Advanced Optical Materials, EarlyView.
Rhombohedral boron nitride (rBN) is an emerging wide‐bandgap van der Waals (vdW) material with strong second‐order nonlinear optical properties. In this work, optically‐addressable spin defects and single‐photon emitters (SPEs) are fabricated deterministically in rBN.
Angus Gale, Mehran Kianinia, Jake Horder, Connor Tweedie, Mridul Singhal, Dominic Scognamiglio, Jiajie Qi, Kaihui Liu, Carla Verdi, Igor Aharonovich, Milos Toth   +10 more
wiley   +1 more source