Results 281 to 290 of about 532,100 (342)

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Observation of quantum effects on radiation reaction in strong fields. [PDF]

Nat Commun
Los EE, Gerstmayr E, Arran C, Streeter MJV, Colgan C, Cobo CC, Kettle B, Blackburn TG, Bourgeois N, Calvin L, Cardarelli J, Cavanagh N, Dann SJD, Di Piazza A, Fitzgarrald R, Ilderton A, Keitel CH, Marklund M, McKenna P, Murphy CD, Najmudin Z, Parsons P, Rajeev PP, Symes DR, Tamburini M, Thomas AGR, Wood JC, Zepf M, Sarri G, Ridgers CP, Mangles SPD.   +30 more
europepmc   +1 more source

Investigation of Collagen Reconstruction Mechanism in Skin Wound Through Dual-Beam Laser Welding: Insights from Multi-Spectroscopy, Molecular Dynamics Simulation, and Finite Element Multiphysics Simulation

Yuxin Chen, Kehong Wang, Himadri S. Gupta, Xiaopeng Li, Jie Liu, Jun Huang, L. S. FORSTER, Yunfeng Rui   +7 more
openalex   +1 more source

Universal Neuromorphic Element: NbOx Memristor with Co‐Existing Volatile, Non‐Volatile, and Threshold Switching

Advanced Functional Materials, EarlyView.
A W/NbOx/Pt memristor demonstrates the coexistence of volatile, non‐volatile, and threshold switching characteristics. Volatile switching serves as a reservoir computing layer, providing dynamic short‐term processing. Non‐volatile switching, stabilized through ISPVA, improves reliable long‐term readout. Threshold switching operates as a leaky integrate
Ungbin Byun, Hyesung Na, Sungjun Kim
wiley   +1 more source

Multimass Three-Dimensional Velocity Map Imaging from Surfaces. [PDF]

J Phys Chem Lett
Jia Y, Green FM, Cheung K, Castellani ME, Brouard M.   +4 more
europepmc   +1 more source

A Van der Waals Optoelectronic Synapse with Tunable Positive and Negative Post‐Synaptic Current for Highly Accurate Spiking Neural Networks

Advanced Functional Materials, EarlyView.
A van der Waals optoelectronic synaptic device based on a ReS2/WSe2 heterostructure and oxygen‐treated h‐BN is presented, which enables both positive and negative PSCs through photocarrier polarity reversal. Bidirectional plasticity arises from gate‐tunable band bending and charge trapping‐induced quasi‐doping.
Hyejin Yoon, Soeun Park, Yeong Kwon Kim, Juhwan Baek, Ki Han Kim, Seongil Yun, Hyeonchang Son, Jeongeun Choi, Byung Chul Jang, Dong‐Ho Kang   +9 more
wiley   +1 more source

Faraday effects emerging from the optical magnetic field. [PDF]

Sci Rep
Assouline B, Capua A.
europepmc   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Higher-order spatiotemporal wave packets with Gouy phase dynamics. [PDF]

Nanophotonics
Yu W, Shen Y.
europepmc   +1 more source

Superradiant terahertz free-electron laser driven by electron microbunch trains. [PDF]

Light Sci Appl
Liang Y, Li T, Sun J, Liu Z, Yang J, Wang X, Yu Y, Tian Q, He Z, Wang H, Zeng L, Yi H, Sun H, Dai Y, Deng X, Wu G, Zhang W, Yang X, Tang C, Yan L.   +19 more
europepmc   +1 more source