Zobrazeno 1 - 10
of 744
pro vyhledávání: '"P. Beaud"'
Autor:
R. Mankowsky, M. Müller, M. Sander, S. Zerdane, X. Liu, D. Babich, H. Ueda, Y. Deng, R. Winkler, B. Strudwick, M. Savoini, F. Giorgianni, S. L. Johnson, E. Pomjakushina, P. Beaud, T. Fennell, H. T. Lemke, U. Staub
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-6 (2024)
Abstract The resonant excitation of electronic transitions with coherent laser sources creates quantum coherent superpositions of the involved electronic states. Most time-resolved studies have focused on gases or isolated subsystems embedded in insu
Externí odkaz:
https://doaj.org/article/28ba97db6b6c4df082eb5a92d5fb6417
Autor:
Singh, Raushan, Glowacki, Jaroslaw, Beaud, Marius, Padovano, Federica, Manning, Robert S., Maddocks, John H.
DNA minicircles are closed double-stranded DNA (dsDNA) fragments that have been demonstrated to be an important experimental tool to understand supercoiled, or stressed, DNA mechanics, such as nucleosome positioning and DNA-protein interactions. Spec
Externí odkaz:
http://arxiv.org/abs/2411.06036
Autor:
J. Maklar, Y. W. Windsor, C. W. Nicholson, M. Puppin, P. Walmsley, V. Esposito, M. Porer, J. Rittmann, D. Leuenberger, M. Kubli, M. Savoini, E. Abreu, S. L. Johnson, P. Beaud, G. Ingold, U. Staub, I. R. Fisher, R. Ernstorfer, M. Wolf, L. Rettig
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Photo-induced phase transitions triggered by an ultrafast excitation cannot be described within the quasi-equilibrium framework. Here, using time-resolved experimental probes, the authors report a transient charge-density-wave order in TbTe3 and desc
Externí odkaz:
https://doaj.org/article/257ed5fea0484950ad3000a986365645
Autor:
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
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (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
Externí odkaz:
https://doaj.org/article/515c468dbcf14aaabfca681a56f20db3
Autor:
S. L. Johnson, M. Savoini, P. Beaud, G. Ingold, U. Staub, F. Carbone, L. Castiglioni, M. Hengsberger, J. Osterwalder
Publikováno v:
Structural Dynamics, Vol 4, Iss 6, Pp 061506-061506-20 (2017)
We present a non-comprehensive review of some representative experimental studies in crystalline condensed matter systems where the effects of intense ultrashort light pulses are probed using x-ray diffraction and photoelectron spectroscopy. On an ul
Externí odkaz:
https://doaj.org/article/1495ad086eea46f2adc3979bd9bfe09e
Autor:
L. Rettig, S. O. Mariager, A. Ferrer, S. Grübel, J. A. Johnson, J. Rittmann, T. Wolf, S. L. Johnson, G. Ingold, P. Beaud, U. Staub
Publikováno v:
Structural Dynamics, Vol 3, Iss 2, Pp 023611-023611-8 (2016)
Using femtosecond time-resolved hard x-ray diffraction, we investigate the structural dynamics of the orthorhombic distortion in the Fe-pnictide parent compound BaFe2As2. The orthorhombic distortion analyzed by the transient splitting of the (1 0 3)
Externí odkaz:
https://doaj.org/article/7026e5d136a04198b2a6e1afcd3a50e5
Autor:
Giorgianni, Flavio, Burian, Max, Gurung, Namrata, Kubli, Martin, Esposito, Vincent, Staub, Urs, Beaud, Paul, Johnson, Steven Lee, Windsor, Yoav William, Rettig, Laurenz, Ozerov, Dmitry, Lemke, Henrik, Saha, Susmita, Pressacco, Federico, Collins, Stephen Patrick, Togashi, Tadashi, Katayama, Tetsuo, Owada, Shigeki, Yabashi, Makina, Yamaura, Kazunari, Tanaka, Yoshikazu, Scagnoli, Valerio
NaOsO$_3$ has recently attracted significant attention for the strong coupling between its electronic band structure and magnetic ordering. Here, we used time-resolved magnetic X-ray diffraction to determine the timescale of the photoinduced \afm dyn
Externí odkaz:
http://arxiv.org/abs/2204.03009
Autor:
Abreu, Elsa, Savoini, Matteo, Boie, Larissa, Beaud, Paul, Esposito, Vincent, Kubli, Martin, Neugebauer, Martin J., Porer, Michael, Staub, Urs, Burganov, Bulat, Dornes, Chris, Rodriguez-Fernandez, Angel, Huber, Lucas, Lantz, Gabriel, Mardegan, José R. L., Parchenko, Sergii, Rittmann, Jochen, Svetina, Cris, Ingold, Gerhard, Johnson, Steven L.
Publikováno v:
Physical Review B 106, 214312 (2022)
We use time-resolved hard x-ray diffraction to investigate the structural dynamics of the multiferroic insulator TbMnO$_3$ in the low temperature antiferromagnetic and ferroelectrically ordered phase. The lattice response following photoexcitation at
Externí odkaz:
http://arxiv.org/abs/2201.10009
We provide a new construction of infraparticle states in the massless Nelson model. The approximating sequence of our infraparticle state does not involve any infrared cut-offs. Its derivative w.r.t. the time parameter $t$ is given by a simple explic
Externí odkaz:
http://arxiv.org/abs/2105.05723
Autor:
Rouxel, Jeremy R., Fainozzi, Danny, Mankowsky, Roman, Rosner, Benedikt, Seniutinas, Gediminas, Mincigrucci, Riccardo, Catalini, Sara, Foglia, Laura, Cucini, Riccardo, Doring, Florian, Kubec, Adam, Koch, Frieder, Bencivenga, Filippo, Haddad, Andre Al, Gessini, Alessandro, Maznev, Alexei A., Cirelli, Claudio, Gerber, Simon, Pedrini, Bill, Mancini, Giulia F., Razzoli, Elia, Burian, Max, Ueda, Hiroki, Pamfilidis, Georgios, Ferrari, Eugenio, Deng, Yunpei, Mozzanica, Aldo, Johnson, Philip J. M., Ozerov, Dmitry, Izzo, Maria G., Bottari, Cettina, Arrell, Christopher, Divall, Edwin J., Zerdane, Serhane, Sander, Mathias, Knopp, Gregor, Beaud, Paul, Lemke, Henrik T., Milne, Chris J., David, Christian, Torre, Renato, Chergui, Majed, Nelson, Keith A., Masciovecchio, Claudio, Staub, Urs, Patthey, Luc, Svetina, Cristian
Optical-domain Transient Grating (TG) spectroscopy is a versatile background-free four-wave-mixing technique used to probe vibrational, magnetic and electronic degrees of freedom in the time domain. The newly developed coherent X-ray Free Electron La
Externí odkaz:
http://arxiv.org/abs/2104.01030