Results 221 to 230 of about 71,366,600 (306)

Nanoscale Optical Inhomogeneities From Compositional Segregation Within Individual GaN‐on‐Si Quantum Wells

Advanced Science, EarlyView.
This work visualizes local variations in luminescence and relates them to nanoscale chemical inhomogeneities in single InxGa1−xN quantum wells. We demonstrate that the elemental segregation is only inherent to quantum wells with high indium content. Density functional theory shows this to be the result of strain‐induced phase stabilization, explaining ...
Jing‐Yang Chung, Tara P. Mishra, Zackaria Mahfoud, Thomas E. Gage, Jianguo Wen, Katherine P. Rice, Isabelle Martin, Li Zhang, Govindo J. Syaranamual, Stephen J. Pennycook, Silvija Gradečak, Pieremanuele Canepa, Michel Bosman   +12 more
wiley   +1 more source

Scattering and induced false vacuum decay in the two-dimensional quantum Ising model. [PDF]

Nat Commun
Pavešić L, Di Liberto M, Montangero S.
europepmc   +1 more source

In Situ Reconstructed Crystalline–Amorphous CuNi Nanotubes Unifying Activity and Stability for Oxygen Evolution

Advanced Science, EarlyView.
Controlled electrochemical reconstruction creates a crystalline–amorphous CuNi nanotube that unifies catalytic activity and durability for alkaline oxygen evolution. The conductive metallic core and active amorphous oxide shell work synergistically to deliver low overpotential and exceptional stability exceeding 1000 h, offering a new strategy for ...
Shi‐Yu Zhu, Han Gao, Meng Li, Ling‐Rui Wang, Tian‐Yu Xia, Wei‐Di Liu, Xiao‐Lei Shi, Hai‐Zhong Guo, Zhi‐Gang Chen   +8 more
wiley   +1 more source

Quantum-Material Josephson Junctions: Unconventional Barriers, Emerging Functionality. [PDF]

Nano Lett
Pitton KA, Dubbelman MP, Kyrk TM, Mrabet Haje HE, Tang Y, van der Kolk RJH, Blanter YM, Ali MN.   +7 more
europepmc   +1 more source

Anisotropic Memristive Switching in NbOCl2 Enabled by Directional Oxygen Ion Migration

Advanced Science, EarlyView.
This study investigates strongly orientation‐dependent memristive switching in anisotropic NbOCl2, observed exclusively along the in‐plane c‐axis. The switching originates from direction‐selective oxygen‐ion migration and vacancy propagation that modulate the Pd/NbOCl2 Schottky barrier, enabling short‐term plasticity.
Caokun Wang, Yun Ji, Sanchali Mitra, Yufei Shi, Haofei Zheng, Yee Sin Ang, Kah‐Wee Ang   +6 more
wiley   +1 more source

Single-Ion Anisotropy-Stabilized Short-Period Helimagnetism in Frustrated Chiral Co₅TeO₈. [PDF]

Research (Wash D C)
Baral PR, Yadav R, Ukleev V, LaGrange T, Živković I, Bi WH, Bartkowiak M, Cubitt R, Steinke NJ, Pomjakushin V, Skourski Y, Rønnow HM, Yazyev OV, Magrez A, White JS.   +14 more
europepmc   +1 more source

Raman Evidence of Moiré Diamondene Formation by High‐Pressure

Advanced Science, EarlyView.
Two‐dimensional moiré diamondene is formed at approximately 2 GPa through the synergy of high pressure, interlayer twist, and a chemically active diamond (100) surface. It is a hybrid sp2–sp3 nanostructure, consists of localized nanodiamond domains and unbonded graphene segments.
Chaofeng Gao, Mingming Chang, Mengting Wang, Yu Chen, Shiyun Zheng, Jiankuan Wu, Min Chen, Keying Han, Luyuan Fan, Zhenxiao Zhang, Kun Zhai, Bochong Wang, Congpu Mu, Yingchun Cheng   +13 more
wiley   +1 more source

High-fidelity collisional quantum gates with fermionic atoms. [PDF]

Nature
Bojović P, Hilker T, Wang S, Obermeyer J, Barendregt M, Tell D, Chalopin T, Preiss PM, Bloch I, Franz T.   +9 more
europepmc   +1 more source

In‐Situ Constructed Cations for 2D/3D Perovskite Heterostructure for Stable and Efficient Photovoltaics

Advanced Science, EarlyView.
An in‐situ spacer‐cation construction strategy is developed by inducing strong hydrogen bonding between n‐hexyl phosphonic acid (HPA) and FA+, forming a stable N‐type 2D/3D perovskite heterostructure. This approach suppressed defect formation, promoted electron transport, and improved intrinsic stability, delivering 26.32% PCE, excellent operational ...
Min Liu, Quanwen You, Licheng Liu, Xinbo Shi, Zhen Wang, Bo Wu, Zhengchi Yang, Guofu Zhou, Jun‐Ming Liu, Jinwei Gao, Yue Jiang   +10 more
wiley   +1 more source