Results 71 to 80 of about 4,550 (312)

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

Advanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin, Jose M. Marin‐Beloqui, Juan T. López Navarrete, Juan Casado, Francisco Najera, Ezequiel Perez‐Inestrosa   +5 more
wiley   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Transport through a quantum critical system: A thermodynamically consistent approach

Physical Review Research, 2020
Currents through quantum systems may probe nonanalyticities in quantum-critical many-body ground states. For a large class of dissipative quantum critical systems we show that it is possible to obtain the reduced system dynamics in the vicinity of ...
C. W. Wächtler, G. Schaller
doaj   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Generalized free cumulants for quantum chaotic systems

Journal of High Energy Physics
The eigenstate thermalization hypothesis (ETH) is the leading conjecture for the emergence of statistical mechanics in generic isolated quantum systems and is formulated in terms of the matrix elements of operators.
Siddharth Jindal, Pavan Hosur
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Exceptional points for parameter estimation in open quantum systems: analysis of the Bloch equations

New Journal of Physics, 2015
We suggest to employ the dissipative nature of open quantum systems for the purpose of parameter estimation: the dynamics of open quantum systems is typically described by a quantum dynamical semigroup generator ${\mathcal{L}}.$ The eigenvalues of ...
Morag Am-Shallem, Ronnie Kosloff, Nimrod Moiseyev   +2 more
doaj   +1 more source

Harnessing Chain Mobility via Protonation for Tough and Isotropic Hydrogel

Advanced Materials, EarlyView.
A protonation‐guided strategy enables ultra‐tough, isotropic PVA hydrogels by temporarily unlocking chain mobility via acidification and fixing homogeneous networks through salting‐out. The resulting materials simultaneously achieve high strength, extreme stretchability, and record‐level toughness, offering a generalizable route toward robust hydrogels
Pengju Shi, Muqing Si, Zishang Lin, Qian Mao, Sidi Duan, Zixiao Liu, Wen Hong, Mason Possinger, Yichen Yan, Chi Chen, Ping He, Xiaobing Zuo, Hua Zhou, Adri van Duin, Ximin He   +14 more
wiley   +1 more source

Asymmetric Bi and S Single Atoms Over Porous Single‐Crystal TiO2 for Efficient CO2 Photoreduction to Acetic Acid

Advanced Materials, EarlyView.
Photocatalytic CO2 to acetic acid is achieved over triadic synergy among asymmetric Bi–O4, S–O2 and 3D porous single‐crystal TiO2, harnessed by a selective extraction process. Particularly, the Bi sites lower the energy barrier for CHO* and C─C coupling, and the structure of S─O regulates Bi─O and Ti─O as a strong Lewis base site ((SO2–BiO4)δ−) to ...
Guangri Jia, Ying Wang, Mingzi Sun, Yingchuan Zhang, Zhipeng Xie, Xiaoqiang Cui, Bolong Huang, Jimmy C. Yu, Zhengxiao Guo   +8 more
wiley   +1 more source