Results 71 to 80 of about 30,908 (277)

Molecular Cross‐Linking of MXenes: Tunable Interfaces and Chemiresistive Sensing

Advanced Functional Materials, EarlyView.
In this study, Ti3C2Tx MXenes are initially functionalized using oleylamine ligands to form stable dispersions in an organic solvent. Subsequently ligand exchange with α,ω‐diaminoalkanes enables cross‐linking, along with precise tuning of interfaces. This structural control translates into tunable charge transport and responsive VOC sensing, showing ...
Yudhajit Bhattacharjee, Lukas Mielke, Mahmoud Al‐Hussein, Shivam Singh, Karen Schaefer, Borja Rodriguez‐Barea, Qiong Li, Anik Kumar Ghosh, Artur Erbe, Carmen Herrmann, Yana Vaynzof, Andreas Fery, Hendrik Schlicke   +12 more
wiley   +1 more source

Beyond a phenomenological description of magnetostriction

Nature Communications, 2018
Although magnetostriction is universal in magnetic materials, understanding its microscopic origin remains challenging. Here the authors use X-ray and ultrafast electron diffraction to separate the material’s sub-picosecond spin and lattice responses and
A. H. Reid, X. Shen, P. Maldonado, T. Chase, E. Jal, P. W. Granitzka, K. Carva, R. K. Li, J. Li, L. Wu, T. Vecchione, T. Liu, Z. Chen, D. J. Higley, N. Hartmann, R. Coffee, J. Wu, G. L. Dakovski, W. F. Schlotter, H. Ohldag, Y. K. Takahashi, V. Mehta, O. Hellwig, A. Fry, Y. Zhu, J. Cao, E. E. Fullerton, J. Stöhr, P. M. Oppeneer, X. J. Wang, H. A. Dürr   +30 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

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

Spatiotemporal Plasma–Mediated Laser Fabrication of Ultrahigh‐Aspect‐Ratio Nanochannel Arrays for Vertical Perovskite Nanowire Semiconductor Devices

Advanced Functional Materials, EarlyView.
A spatiotemporal plasma–mediated laser processing approach is developed to fabricate ultrahigh–aspect ratio nanochannel arrays and corresponding perovskite nanowire arrays within transparent materials for optoelectronics devices. The laser‐fabricated nanochannels serve as templates for controlled perovskite infiltration and crystallization, enabling ...
Taijin Wang, Lingfeng Wang, Feng Liu, Gary J. Cheng   +3 more
wiley   +1 more source

High-repetition-rate few-attosecond high-quality electron beams generated from crystals driven by intense X-ray laser

Matter and Radiation at Extremes, 2020
Advances in X-ray laser sources have paved the way to relativistic attosecond X-ray laser pulses and opened up the possibility of exploring high-energy-density physics with this technology.
Zhenfeng Liang, Baifei Shen, Xiaomei Zhang, Lingang Zhang   +3 more
doaj   +1 more source

Ultrafast Laser-Induced Melting of Long-Range Magnetic Order in Multiferroic TbMnO3

, 2015
We performed ultrafast time-resolved near-infrared pump, resonant soft X-ray diffraction probe measurements to investigate the coupling between the photoexcited electronic system and the spin cycloid magnetic order in multiferroic TbMnO3 at low ...
Alberca, A., Beaud, P., Bothschafter, E. M., Chuang, Y. -D., Dakovski, G. L., de Jong, S., Gruebel, S., Hauri, C. P., Hoffmann, M. C., Huang, S. -W., Huber, L., Ingold, G., Johnson, Jeremy A., Johnson, S. L., Koohpayeh, S. M., Kubacka, T., Lee, W. -S., Minitti, M. P., Moore, R. G., Patthey, L., Ramakrishnan, M., Rettig, L., Scagnoli, V., Schlotter, W., Staub, U., Turner, J. J., Vicario, C., Windsor, Y. W.   +27 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

Synergistic Compatibilization of CsPbBr3 Perovskites and HfO2 Nanocrystals for Hybrid Sensitized Nanoscintillators

Advanced Functional Materials, EarlyView.
Lead halide perovskite nanocrystals are promising scintillators but suffer from reabsorption losses and limited compatibility with high‐Z additives. Hybridization of CsPbBr3 nanocrystals with PbBr2‐passivated HfO2 nanoparticle sensitizers, achieved during or after synthesis, produces stable composites with maintained optical quality, improved ...
Francesco Bruni, Saptarshi Chakraborty, Andrea Fratelli, Abdessamad El Adel, Jordi Llusar, Francesco Carulli, Matteo L. Zaffalon, Chenger Wang, Vojtech Zabloudil, Etiennette Auffray, Francesco Meinardi, Leonardo Poletti, Laura Lazzarini, Daniela Manno, Anna Galli, Francesca Rossi, Ivan Infante, Sergio Brovelli   +17 more
wiley   +1 more source

Ultrafast structural changes measured by time-resolved X-ray diffraction [PDF]

Applied Physics A: Materials Science & Processing, 1998
High-intensity X-ray pulses from third-generation synchrotron sources make it possible to study the temporal dynamics of rapidly evolving materials. We report a study of rapid and reversible disordering of the structure of an InSb crystal induced by an ultrashort laser pulse.
Wark, J. S., Heimann, P. A., Padmore, H. A., Schuck, P. J., Lindenberg, A. M., Lee, R. W., Falcone, R. W., Bucksbaum, Philip H., Larsson, J.   +8 more
openaire   +3 more sources