Results 101 to 110 of about 31,660 (298)

Coupled order parameters and photoinduced domain walls in the charge density wave of (TaSe4)2I

npj Quantum Materials
The charge density wave in (TaSe4)2I has drawn much attention recently as a controversial candidate for an axion insulator where the CDW breaks the chiral symmetry of the Weyl semimetal.
Ryan A. Duncan, Gal Orenstein, Soyeun Kim, Yijing Huang, Huaiyu Wang, Samuel W. Teitelbaum, Jade Stanton, Matthew Hurley, Alexander Miller, Nicholas Leonard, Dillon Hanlon, David A. Reis, Taito Osaka, Yuya Kubota, Tadashi Togashi, Kejian Qu, Daniel P. Shoemaker, Takahiro Sato, Mariano Trigo   +18 more
doaj   +1 more source

Optically induced lattice dynamics probed with ultrafast X-ray diffraction

2005 Quantum Electronics and Laser Science Conference, 2005
We have studied the picosecond-dynamics of optically pumped hexagonal LuMnO/sub 3/ using ultrafast X-ray diffraction. Experimental data are compared with a simulation based on dynamical diffraction theory modified to account for the hexagonal structure of LuMnO/sub 3/.
Lee, H, Workman, J, Wark, J, Averitt, R, Taylor, A, Roberts, J, McCulloch, Q, Hof, D, Hur, N, Cheong, S, Funk, D   +10 more
openaire   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

Advanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang, Avirup Sardar, Weijie Ji, Zhongyu Liu, Rongchao Jin   +4 more
wiley   +1 more source

Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks

Advanced Materials, EarlyView.
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li, Aiden Ross, Vladimir A. Stoica, Sujit Das, Sankalpa Hazra, Huaiyu (Hugo) Wang, Hari Padma, Matthias C. Hoffmann, Patrick Kramer, Sanghoon Song, Silke Nelson, Takahiro Sato, Diling Zhu, Ramamoorthy Ramesh, Lane W. Martin, Yue Cao, John W. Freeland, Aaron M. Lindenberg, Haidan Wen, Long‐Qing Chen, Venkatraman Gopalan   +20 more
wiley   +1 more source

Towards shot-noise limited diffraction experiments with table-top femtosecond hard x-ray sources

Structural Dynamics, 2017
Table-top laser-driven hard x-ray sources with kilohertz repetition rates are an attractive alternative to large-scale accelerator-based systems and have found widespread applications in x-ray studies of ultrafast structural dynamics.
Marcel Holtz, Christoph Hauf, Jannick Weisshaupt, Antonio-Andres Hernandez Salvador, Michael Woerner, Thomas Elsaesser   +5 more
doaj   +1 more source

Driving magnetic order in a manganite by ultrafast lattice excitation

, 2011
Optical control of magnetism, of interest for high-speed data processing and storage, has only been demonstrated with near-infrared excitation to date. However, in absorbing materials, such high photon energies can lead to significant dissipation, making
Bromberger, H., Cavalieri, A., Cavalleri, A., Chuang, Y., Dhesi, S., Först, M., Hill, J., Khanna, V., Krupin, O., Lee, W., Mitchell, J., Moore, R., Schlotter, W., Tobey, R., Trigo, M., Turner, J., Wall, S., Zheng, H.   +17 more
core   +1 more source

Picosecond–milliångström lattice dynamics measured by ultrafast X-ray diffraction

Nature, 1999
Fundamental processes on the molecular level, such as vibrations and rotations in single molecules, liquids or crystal lattices and the breaking and formation of chemical bonds, occur on timescales of femtoseconds to picoseconds. The electronic changes associated with such processes can be monitored in a time-resolved manner by ultrafast optical ...
Rose-Petruck, C, Jimenez, R, Guo, T, Cavalleri, A, Siders, C, Raksi, F, Squier, J, Walker, B, Wilson, K, Barty, C   +9 more
openaire   +2 more sources

Boosting Seawater Desalination by Ampere‐Level Nitrate Electroreduction On Defect‐Rich Ultrathin RuCu Alloy Nanostructures

Advanced Materials, EarlyView.
Defect engineering of ultrathin RuCu alloy nanostructures has been successfully achieved to enhance ammonia electrosynthesis under indutrial‐level current density. Simultaneously, the stable ampere‐level operation of nitrate electroreduction on defective RuCu nanostructures can drive seawater desalination at an ultrafast salt removal rate, offering an ...
Juan Wang, Liang Guo, Qingbo Wa, Fengkun Hao, Fu Liu, Chaohui Wang, Yunhao Wang, Mingzheng Shao, Yiwei Guo, Guozhi Wang, Xiang Meng, Fangren Qian, Xiuyun Zhang, Chongyi Ling, Shengqi Chu, Zhanxi Fan   +15 more
wiley   +1 more source

Direct observation of ultrafast thermal and non-thermal lattice deformation of polycrystalline Aluminum film

, 2017
The dynamics of thermal and non-thermal lattice deformation of nanometer thick polycrystalline aluminum film has been studied by means of femtosecond (fs) time-resolved electron diffraction.
Cao, Jianming, Chen, Jie, Li, Runze, Rentzepis, Peter M., Zhang, Jie, Zhu, Pengfei   +5 more
core   +1 more source

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source