Results 101 to 110 of about 570,799 (322)

InMemQK: A Product Quantization Based MatMul Module for Compute-in-Memory Attention Macro

Applied Sciences
Large Language Models (LLMs), based on transformer architecture, have demonstrated remarkable capabilities in natural language processing tasks, enabling machines to generate human-like text and engage in meaningful dialogues.
Pengcheng Feng, Yihao Chen, Jinke Yu, Hao Yue, Zhelong Jiang, Yi Xiao, Wan’ang Xiao, Huaxiang Lu, Gang Chen   +8 more
doaj   +1 more source

Hole crystallization in semiconductors

, 2005
When electrons in a solid are excited to a higher energy band they leave behind a vacancy (hole) in the original band which behaves like a positively charged particle.
Abrikosov A A, Fehske H, Filinov V S, Filinov V S, For details, H Fehske, M Bonitz, P R Levashov, Saarela M, V E Fortov, V S Filinov, Wachter P   +11 more
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

Advanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang, Rohan Dhall, Matthew M. Schneider, Cun Li, Chengyu Song, Sundar Kunwar, Hongyi Dou, Natanii R. Yazzie, Henry Tran, Daniel Appuing, Jim Ciston, Nicholas G. Cucciniello, Pinku Roy, Michael T. Pettes, John Watt, Winson Kuo, Haiyan Wang, Ye Cao, Rodney J. McCabe, Aiping Chen   +19 more
wiley   +1 more source

Nanomechanical and optical vibrations properties of vanadium oxide thin films obtained by multi-step deposition approach

Фізика і хімія твердого тіла
Vanadium oxide thin films were fabricated using a multi-step deposition process involving magnetron sputtering and sequential annealing. The structural, vibrational, and nanomechanical properties of the films were investigated to elucidate the impact of ...
Andrii Korchoviy, Petro Lytvyn, Volodymyr Dzhagan, Olexandr Gudymenko, Kateryna Svezhentsova, Mykola Boltovets, Viktor Strelchuk, Olexandr Kolesnikov, Oksana Isaieva, Volodymyr Yefanov, Viktor Melnik, Boris Romanyuk   +11 more
doaj   +1 more source

Research on the Piezoelectric Properties of AlN Thin Films for MEMS Applications

Micromachines, 2015
In this paper, the piezoelectric coefficient d33 of AlN thin films for MEMS applications was studied by the piezoresponse force microscopy (PFM) measurement and finite element method (FEM) simulation.
Meng Zhang, Jian Yang, Chaowei Si, Guowei Han, Yongmei Zhao, Jin Ning   +5 more
doaj   +1 more source

The band gap problem: the accuracy of the Wien2k code confronted [PDF]

, 2013
This paper is a continuation of our detailed study [Phys. Rev. B 86, 195106 (2012)] of the performance of the recently proposed modified Becke-Jonhson potential (mBJLDA) within the known Wien2k code.
Baquero, R., Camargo-Martínez, J. A.
core  

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source

Research on Maximum Likelihood Decoding Algorithm and Channel Characteristics Optimization for 4FSK Ultraviolet Communication System Based on Poisson Distribution

Photonics
This study focuses on a 4FSK-modulated ultraviolet (UV) communication system, introducing an innovative symbol-level maximum likelihood decoding approach based on Poisson statistics.
Li Kuang, Yingkai Zhao, Kangjian Li, Xingfa Wang, Linyi Li, Huishi Zhu, Weijie Zhang, Jianguo Liu   +7 more
doaj   +1 more source

Unraveling the Mg Loss Mechanism and Degradation Kinetics in Thermoelectric n‐Type Mg2Si‐Mg2Sn Solid Solutions

Advanced Functional Materials, EarlyView.
Mg‐based thermoelectrics are among the most promising candidates for power generation applications but their performance is compromised by Mg loss at device operation temperatures due to the higher chemical potential of Mg (μMg${\mu}_{\mathrm{Mg}}$) inside the material compared to the environment.
Aryan Sankhla, Eckhard Mueller, Johannes de Boor   +2 more
wiley   +1 more source

Compact Optical 90° Hybrid on a Thin-Film Lithium Niobate Platform Used for Integrated Coherent Transceivers

Photonics
A 90° optical hybrid employing an MMI coupler was fabricated on a thin-film lithium niobate (TFLN) platform that can be used for integrated coherent transceivers. The fabricated 90° optical hybrid exhibited a CMRR greater than 20 dB, a phase error below ±
Haolei Feng, Yuqiong Chen, Zheyuan Shen, Man Chen, Hanyu Wang, Jianguo Liu, Suo Wang, Zeping Zhao   +7 more
doaj   +1 more source