Results 51 to 60 of about 5,057 (262)

Chirality-assisted three-dimensional acoustic Floquet lattices

Physical Review Research, 2019
Artificial topological insulators in classical systems are thriving, especially the meta-atom-based three-dimensional (3D) topological lattices. Here we propose a paradigm based on engineering coupling networks in a generalized spatial Floquet lattice ...
Yu-Gui Peng, Ying Li, Ya-Xi Shen, Zhi-Guo Geng, Jie Zhu, Cheng-Wei Qiu, Xue-Feng Zhu   +6 more
doaj   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

Advanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou, Tingjun Zhong, Sijie Liu, Pouya Nosratkhah, Ke Xu, Yuzhen Zhao, Kristiaan Neyts   +6 more
wiley   +1 more source

Topology Morphing Lattice Structures

ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, 2021
Abstract Planar cellular lattice structures subject to axial compression may undergo elastic bending or buckling of the unit cells. If sufficient compression is applied, the columns of adjacent cells make contact. This changes the topology of the lattice by establishing new load paths.
Sundararaman, Venkatesh, O'Donnell, Matthew P., Chenchiah, Isaac V., Weaver, Paul M.   +3 more
openaire   +1 more source

From Geometry to Function: Programmable Mechanical Response in 3D‐Printed Adipose‐Inspired Soft Metamaterials

Advanced Functional Materials, EarlyView.
Geometry‐driven design of soft cellular metamaterials is systematically investigated by combining experiments, finite element modeling, and statistical prediction. The study quantifies how unit cell geometry and material properties govern stiffness, instability, densification, and energy absorption.
Alice Berardo, Gianmarco Dolino, Damiano Coato, Paolo Gargiulo, Emanuele Luigi Carniel   +4 more
wiley   +1 more source

Geometric lattices with topology

Journal of Combinatorial Theory, Series A, 1986
[Das Referat bezieht sich auf diese und die nachfolgende Arbeit.] Diese beiden Arbeiten bringen die Theorie der topologischen geometrischen Verbände zu einem sehr befriedigenden Abschluß. Sei \(G\) ein \(n\)-dimensionaler geometrischer Verband im Sinne von \textit{G. Birkhoff} [Lattice Theory. 3rd ed.
openaire   +1 more source

Extraordinary n‐type Tellurium‐Free Thermoelectric Performance of Y‐Doped BiSe via Synergistic Effect of Vacancies and Band Engineering

Advanced Functional Materials, EarlyView.
Yttrium doping in Sb‐alloyed BiSe synergistically induces Bi vacancies and flattens conduction bands, simultaneously slashing lattice thermal conductivity by 50% and boosting the power factor. The optimized n‐type Bi0.64Sb0.3Y0.06Se delivers a peak zT of 0.91 at 393 K (average zT 0.76, 300–523 K) and an 8‐pair module with 4.6% conversion efficiency ...
Wenhao Xie, Fang Lyu, Xiaolong Sun, Chang Li, Xiaolu Zhu, Liangwei Hu, Qianfeng Ding, Wenjie Zhou, Muyang Huang, Yineng Gou, Yi Zhao, Han Tang, Wei Cao, Yue Hou, Yun Zheng, Ady Suwardi, Ziyu Wang   +16 more
wiley   +1 more source

Impact of Disorder on Microscopic Superconducting and Normal‐State Responses in a Kagome Metal

Advanced Functional Materials, EarlyView.
Using depth‐resolved, field‐ and pressure‐dependent μSR$\umu{\rm SR}$ measurements, we show that disorder in Ta‐doped KV3Sb5 drives a crossover from nodal to nodeless superconductivity while strongly modifying the normal‐state magnetic response. Our results reveal that disorder affects superconductivity and magnetism in fundamentally different ways ...
J. N. Graham, S. S. Islam, G. Janka, A. Doll, P. Král, O. Gerguri, J. A. Krieger, T. J. Hicken, X. Xu, X. Yan, H. Qin, Z. Salman, A. Suter, T. Prokscha, R. Thomale, H. Luetkens, R. Khasanov, J.‐X. Yin, Z. Guguchia   +18 more
wiley   +1 more source

Topological superconductivity in skyrmion lattices

npj Quantum Materials, 2021
Atomic manipulation and interface engineering techniques have provided an intriguing approach to custom-designing topological superconductors and the ensuing Majorana zero modes, representing a paradigm for the realization of topological quantum ...
Eric Mascot, Jasmin Bedow, Martin Graham, Stephan Rachel, Dirk K. Morr   +4 more
doaj   +1 more source

Polarization Sensitivity of Chiral Manganese Halide Scintillators Enables High‐Resolution X‐Ray Imaging

Advanced Functional Materials, EarlyView.
Highly luminescent chiral manganese halide crystals are synthesized using chiral ligands, and they exhibit dissymmetry factors up to 1.4 × 10−2 and show X‐ray detection scintillation capability with a light yield of 43 380 photons/MeV and a low detection limit of 0.05198 µGyair·s−1.
Yue Han, Jun'an Lai, Peng He, Wenxia Zhang, Xirong Ke, Shengsi Liu, Kang An, Xiao‐Fang Jiang, Lakshminarayana Polavarapu, Xiaosheng Tang   +9 more
wiley   +1 more source

Engineered electronic states in atomically precise artificial lattices and graphene nanoribbons

Advances in Physics: X, 2019
The fabrication of atomically precise structures with designer electronic properties is one of the emerging topics in condensed matter physics. The required level of structural control can either be reached through atomic manipulation using the tip of a ...
Linghao Yan, Peter Liljeroth
doaj   +1 more source