Results 111 to 120 of about 30,908 (277)

The photoinduced transition in magnetoresistive manganites: a comprehensive view

, 2017
We use femtosecond x-ray diffraction to study the structural response of charge and orbitally ordered Pr$_{1-x}$Ca$_x$MnO$_3$ thin films across a phase transition induced by 800 nm laser pulses.
Abreu, E., Beaud, P., Bothschafter, E., Esposito, V., Ingold, G., Johnson, S. L., Kawasaki, M., Kubli, M., Lantz, G., Nakamura, M., Rettig, L., Rittman, J., Savoini, M., Staub, U., Tokura, Y.   +14 more
core   +1 more source

A Cu‐Based Near‐IR Active MOF with an Ion‐Pair Guest Exhibiting Versatile and Selective Gas‐Solid Reactivity

Advanced Materials, EarlyView.
The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha, Alejandro Cortés‐Villena, Silvia Gómez‐Coca, Alberto Fernández‐Alarcón, Joaquín Calbo, Raquel E. Galian, Enrique Ortí, Eliseo Ruiz, Mónica Giménez‐Marqués, Samia Benmansour, Carlos J. Gómez‐García   +10 more
wiley   +1 more source

Room-temperature macromolecular serial crystallography using synchrotron radiation

IUCrJ, 2014
A new approach for collecting data from many hundreds of thousands of microcrystals using X-ray pulses from a free-electron laser has recently been developed.
Francesco Stellato, Dominik Oberthür, Mengning Liang, Richard Bean, Cornelius Gati, Oleksandr Yefanov, Anton Barty, Anja Burkhardt, Pontus Fischer, Lorenzo Galli, Richard A. Kirian, Jan Meyer, Saravanan Panneerselvam, Chun Hong Yoon, Fedor Chervinskii, Emily Speller, Thomas A. White, Christian Betzel, Alke Meents, Henry N. Chapman   +19 more
doaj   +1 more source

Ultrafast changes in lattice symmetry probed by coherent phonons

, 2012
The electronic and structural properties of a material are strongly determined by its symmetry. Changing the symmetry via a photoinduced phase transition offers new ways to manipulate material properties on ultrafast timescales.
A Cavalleri, A Cavalleri, C Kübler, CW Siders, D Fausti, D Fausti, D Wegkamp, DJ Hilton, DM Fritz, E Möhr-Vorobeva, ES Zijlstra, G Sciaini, H Ichikawa, HJ Zeiger, HW Verleur, I Radu, J Nag, K Ishioka, K Ishioka, M Hada, M Hara, M Hase, M Hase, MF Becker, P Baum, P Beaud, P Schilbe, R Yusupov, S Hunsche, SI Kudryashov, SK Sundaram, SL Johnson, TE Stevens, TK Cheng, WR Roach   +34 more
core   +1 more source

Ultrafast spectroscopy and diffraction from XUV to x-ray [PDF]

The Journal of Chemical Physics, 2020
Munira Khalil, Shaul Mukamel
openaire   +2 more sources

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Irreversible transformation of ferromagnetic ordered stripe domains in single-shot IR pump - resonant X-ray scattering probe experiments

, 2015
The evolution of a magnetic domain structure upon excitation by an intense, femtosecond Infra-Red (IR) laser pulse has been investigated using single-shot based time-resolved resonant X-ray scattering at the X-ray Free Electron laser LCLS. A well-ordered
Baumier, Cédric, Bergeard, Nicolas, Boeglin, Christine, Delaunay, Renaud, Eisebitt, Stefan, Fortuna, Franck, Geilhufe, Jan, Graves, Catherine, Günther, Christian M., Jaouen, Nicolas, Krupin, Oleg, López-Flores, Víctor, Lüning, Jan, Minitti, Michael P., Robinson, Joe, Schaffert, Stefan, Scherz, Andreas, Schlotter, William F., Schneider, Michael, Tortarolo, Marina, Tudu, Bharati, Turner, Joshua J., Wang, Tianhan, Wu, Benny   +23 more
core   +3 more sources

Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a Van der Waals Antiferromagnet

Advanced Materials, EarlyView.
Magnetically coupled acoustic phonon modes (f1, f2, f3) are captured by ultrafast X‐ray diffraction in a prototypical van der Waals antiferromagnet FePS3, including their atomic displacement vectors (u) and the acoustic propagation wave vectors (k). Notably, the atomic displacement vector and amplitude of these modes, represented by the direction and ...
Faran Zhou, Kyle Hwangbo, Sung Soo Ha, Xiao‐Wei Zhang, Sae Hwan Chun, Jaeku Park, Intae Eom, Qianni Jiang, Zekai Yang, Marc Zajac, Sungwon Kim, Sungwook Choi, Zhaodong Chu, Kyoung Hun Oh, Yifan Su, Alfred Zong, Elton J. G. Santos, Ting Cao, Jiun‐Haw Chu, Stephan O. Hruszkewycz, Nuh Gedik, Di Xiao, Hyunjung Kim, Xiaodong Xu, Haidan Wen   +24 more
wiley   +1 more source

Ultrafast time-resolved X-ray diffraction

, 2016
Femtosecond laser-generated plasmas emit ultrashort X-ray pulses in the multi-keV range, which allow the extension of X-ray spectroscopy into the ultrafast time-domain. We report here on the generation of such short X-ray pulses and their application for time-resolved diffraction as a means to directly study ultrafast structural dynamics in laser ...
Sokolowski-Tinten, K, Blome, C, Blums, J, Cavalleri, A, Dietrich, C, Tarasevitch, A, von der Linde, D   +6 more
openaire   +1 more source

Laser‐Synthesized Amorphous PdSe2‐x Nanoparticles: A Defect‐Rich Platform for High‐Efficiency SERS, Photocatalysis, and Photothermal Conversion

Advanced Materials Interfaces, EarlyView.
Using femtosecond ablation, we show that an ordered, stoichiometric crystalline PdSe2 target can be controllably converted into a stable, disordered, non‐stoichiometric, and highly functional amorphous nanomaterial, PdSe2−x${\rm PdSe}_{2-x}$. The obtained nanoparticles offer significant advantages over conventional planar plasmon‐free substrates due to
Andrei Ushkov, Nadezhda Belozerova, Dmitriy Dyubo, Ilya Martynov, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Sergey V. Bazhenov, Roman I. Romanov, Ivan Kruglov, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov   +18 more
wiley   +1 more source