Results 51 to 60 of about 31,660 (298)

Strain wave pathway to semiconductor-to-metal transition revealed by time-resolved X-ray powder diffraction

Nature Communications, 2021
Ultrafast control of materials draws interest. Here, the authors extend X-ray powder diffraction to the femtosecond timescale to follow the photo-induced semiconductor to metal transition in titanium pentaoxide, observing a phase front that moves at the ...
C. Mariette, M. Lorenc, H. Cailleau, E. Collet, L. Guérin, A. Volte, E. Trzop, R. Bertoni, X. Dong, B. Lépine, O. Hernandez, E. Janod, L. Cario, V. Ta Phuoc, S. Ohkoshi, H. Tokoro, L. Patthey, A. Babic, I. Usov, D. Ozerov, L. Sala, S. Ebner, P. Böhler, A. Keller, A. Oggenfuss, T. Zmofing, S. Redford, S. Vetter, R. Follath, P. Juranic, A. Schreiber, P. Beaud, V. Esposito, Y. Deng, G. Ingold, M. Chergui, G. F. Mancini, R. Mankowsky, C. Svetina, S. Zerdane, A. Mozzanica, A. Bosak, M. Wulff, M. Levantino, H. Lemke, M. Cammarata   +45 more
doaj   +1 more source

Anisotropic structural dynamics of monolayer crystals revealed by femtosecond surface x-ray scattering

, 2018
X-ray scattering is one of the primary tools to determine crystallographic configuration with atomic accuracy. However, the measurement of ultrafast structural dynamics in monolayer crystals remains a long-standing challenge due to a significant ...
Clark, Genevieve, Darancet, Pierre, Ernst, Friederike, Glownia, James M., Heinz, Tony F., Kalia, Rajiv K., Kozina, Michael E., Krishnamoorthy, Aravind, Kumazoe, Hiroyuki, Lindenberg, Aaron M., Mannebach, Ehren M., Nakano, Aiichiro, Nelson, Silke, Nyby, Clara, Sadasivam, Sridhar, Seyler, Kyle L., Shimojo, Fuyuki, Song, Sanghoon, Tung, I-Cheng, Vashishta, Priya, Wen, Haidan, Xu, Xiaodong, Zhang, Qi, Zhou, Hua, Zhu, Diling   +24 more
core   +1 more source

Fine microstructure formation in steel under ultrafast heating and cooling

Scientific Reports, 2022
This study evaluates phase transformation kinetics under ultrafast cooling using femtosecond X-ray diffraction for the operand measurements of the dislocation densities in Fe–0.1 mass% C–2.0 mass% Mn martensitic steel.
Mitsuharu Yonemura, Hitomi Nishibata, Rina Fujimura, Natsumi Ooura, Kengo Hata, Kazuki Fujiwara, Kaori Kawano, Itsuki Yamaguchi, Tomoyuki Terai, Yuichi Inubushi, Ichiro Inoue, Toshinori Yabuuchi, Kensuke Tono, Makina Yabashi   +13 more
doaj   +1 more source

Impact of ultrafast electronic damage in single particle x-ray imaging experiments

, 2012
In single particle coherent x-ray diffraction imaging experiments, performed at x-ray free-electron lasers (XFELs), samples are exposed to intense x-ray pulses to obtain single-shot diffraction patterns.
E. Weckert, F. Herman, I. A. Vartanyants, J. Als-Nielsen, L. Mandel, M. M. Woolfson, N. M. Kabachnik, U. Lorenz   +7 more
core   +1 more source

Ultrafast optical stress on BaFe_{2}As_{2}

Physical Review Research, 2021
We investigate the ultrafast lattice dynamics in BaFe_{2}As_{2} via time-resolved x-ray diffraction measurements using an x-ray free-electron laser at SPring-8 Angstrom Compact free-electron LAser (SACLA).
Takeshi Suzuki, Yuya Kubota, Asuka Nakamura, Takahiro Shimojima, Kou Takubo, Suguru Ito, Kohei Yamamoto, Shoya Michimae, Hikaru Sato, Hidenori Hiramatsu, Hideo Hosono, Tadashi Togashi, Makina Yabashi, Hiroki Wadati, Iwao Matsuda, Shik Shin, Kozo Okazaki   +16 more
doaj   +1 more source

Gas gun shock experiments with single-pulse x-ray phase contrast imaging and diffraction at the Advanced Photon Source

, 2012
The highly transient nature of shock loading and pronounced microstructure effects on dynamic materials response call for {\it in situ}, temporally and spatially resolved, x-ray-based diagnostics.
B. J. Jensen, Bowden F. P., D. E. Hooks, J. D. Yeager, K. Fezzaa, K. J. Ramos, K. Kwiatkowski, Kwiatkowski K., S. N. Luo, T. Shimada   +9 more
core   +1 more source

Compression of extreme-ultraviolet ultrashort pulses by grating configurations [PDF]

, 2015
The design and realization of grating instruments to condition the spectral phase of ultrashort extreme-ultraviolet pulses are discussed. The main application of such configurations is the temporal compression of pulses by compensating the phase chirp ...
Frassetto, Fabio, Miotti, Paolo, Poletto, Luca   +2 more
core   +3 more sources

Concepts and use cases for picosecond ultrasonics with x-rays

Photoacoustics, 2023
This review discusses picosecond ultrasonics experiments using ultrashort hard x-ray probe pulses to extract the transient strain response of laser-excited nanoscopic structures from Bragg-peak shifts.
Maximilian Mattern, Alexander von Reppert, Steffen Peer Zeuschner, Marc Herzog, Jan-Etienne Pudell, Matias Bargheer   +5 more
doaj   +1 more source

High-resolution ab initio three-dimensional X-ray diffraction microscopy

, 2005
Coherent X-ray diffraction microscopy is a method of imaging non-periodic isolated objects at resolutions only limited, in principle, by the largest scattering angles recorded.
Aleksandr Noy, Anton Barty, Beetz, Bertero, Choi, Chris Jacobsen, Congwu Cui, Crimmins, Crowther, David Shapiro, Devaney, Elser, Fienup, Fienup, Fienup, Fienup, Frigo, Haddad, Haifeng He, Hau-Riege, He, He, Henry N. Chapman, John C. H. Spence, Kirz, Ladd, Larabell, Luke, Malcolm R. Howells, Marchesini, Marchesini, Miao, Miao, Miao, Miao, Natterer, Neutze, Nishino, Pan, Rachel Rosen, Robinson, Salerno, Sato, Sayre, Sayre, Shapiro, Spence, Spence, Spence, Stefan P. Hau-Riege, Stefano Marchesini, Streibl, Szoke, Tobias Beetz, Uwe Weierstall, Weiss, Williams, Wolf   +57 more
core   +3 more sources

Single-Shot Electron Diffraction using a Cold Atom Electron Source [PDF]

, 2015
Cold atom electron sources are a promising alternative to traditional photocathode sources for use in ultrafast electron diffraction due to greatly reduced electron temperature at creation, and the potential for a corresponding increase in brightness ...
McCulloch, Andrew J., Nugent, Keith A., Putkunz, Corey T., Scholten, Robert E., Sparkes, Benjamin M., Speirs, Rory W.   +5 more
core   +2 more sources