Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Wolfram Leitenberger"'
Publikováno v:
Journal of large-scale research facilities JLSRF, Vol 2, p A89 (2016)
The X-ray Pump-Probe (XPP) experimental station predominantly aims at investigating hard and soft matter under a broad range of ambient conditions using time-resolved X-ray diffraction.
Externí odkaz:
https://doaj.org/article/5d19bf1dcac84abd8a397fe25fedda5f
Autor:
Daniel Schick, Marc Herzog, André Bojahr, Wolfram Leitenberger, Andreas Hertwig, Roman Shayduk, Matias Bargheer
Publikováno v:
Structural Dynamics, Vol 1, Iss 6, Pp 064501-064501-13 (2014)
Using ultrafast X-ray diffraction, we study the coherent picosecond lattice dynamics of photoexcited thin films in the two limiting cases, where the photoinduced stress profile decays on a length scale larger and smaller than the film thickness. We s
Externí odkaz:
https://doaj.org/article/cbb55b4e73924f5b9fd5e38e859d048d
Autor:
Simone Vadilonga, Dmitry Roshchupkin, Evgenii Emelin, Anatolii A. Mololkin, S. Sakharov, Olga Plotitcyna, Natalya Targonskaya, Luc Ortega, Dmitry Irzhak, Yuri Suhak, Vasilii K. Karandashev, Holger Fritze, Fahrtdinov Rashid, D. P. Kovalev, Redkin Boris S, Wolfram Leitenberger, T. S. Orlova
Publikováno v:
Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 76:1071-1076
Ferroelectric LiNb1–x Ta x O3 solid solutions with various Nb/Ta ratio were grown from the melt by the Czochralski method. The exact composition of the grown crystals was determined by inductively coupled plasma atomic mass spectrometry. The depend
Autor:
Evgenii Emelin, Dmitry Roshchupkin, Simone Vadilonga, M. Rössle, Ivo Zizak, Wolfram Leitenberger, Alexei Erko
Publikováno v:
Optics express. 29(22)
We present a novel method of temporal modulation of X-ray radiation for time resolved experiments. To control the intensity of the X-ray beam, the Bragg reflection of a piezoelectric crystal is modified using comb-shaped electrodes deposited on the c
Autor:
M. Rössle, A. Koc, Wolfram Leitenberger, Christelle Kwamen, Matthias Reinhardt, Jan Pudell, Matias Bargheer
Publikováno v:
Journal of Synchrotron Radiation
The KMC-3 XPP endstation of the synchrotron BESSY II is dedicated to time-resolved studies of structural dynamics of matter upon optical and/or electrical excitation using hard X-ray diffraction with an accessible time range from 17 ps to several mic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eab7f9707fcc639d15e082e96f23f65f
http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8622
http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8622
Autor:
Matias Bargheer, M. Rössle, Niels Keller, Elena Popova, S. P. Zeuschner, Wolfram Leitenberger, Marwan Deb
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2021, 103, ⟨10.1103/physrevb.103.064301⟩
Physical Review B, American Physical Society, 2021, 103, ⟨10.1103/physrevb.103.064301⟩
Using ultrafast x-ray diffraction, we directly monitor the lattice dynamics induced by femtosecond laser pulses in nanoscale thin films of bismuth iron garnet in external magnetic fields ${H}_{\mathrm{ext}}$. We control the ultrafast laser-induced la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c628bc8aa008991d6c657ab49797ffb
https://hal.archives-ouvertes.fr/hal-03439604/file/PhysRevB.103.064301.pdf
https://hal.archives-ouvertes.fr/hal-03439604/file/PhysRevB.103.064301.pdf
Autor:
Dmitry, Roshchupkin, Evgenii, Emelin, Olga, Plotitcyna, Fahrtdinov, Rashid, Dmitry, Irzhak, Vasilii, Karandashev, Tatiana, Orlova, Natalya, Targonskaya, Sergey, Sakharov, Anatolii, Mololkin, Boris, Redkin, Holger, Fritze, Yuri, Suhak, Dmitry, Kovalev, Simone, Vadilonga, Luc, Ortega, Wolfram, Leitenberger
Publikováno v:
Acta crystallographica Section B, Structural science, crystal engineering and materials. 76(Pt 6)
Ferroelectric LiNb
Autor:
Andrei Petsiuk, Dmitry Roshchupkin, Emelin Evgenii, Ivo Zizak, Wolfram Leitenberger, Alexei Erko, Simone Vadilonga
Publikováno v:
Journal of Applied Crystallography
X-ray Bragg diffraction in sagittal geometry on a Y-cut langasite crystal (La3Ga5SiO14) modulated by Λ = 3 µm Rayleigh surface acoustic waves was studied at the BESSY II synchrotron radiation facility. The surface acoustic waves create a dynamical
The electric field-dependence of structural dynamics in a tetragonal ferroelectric lead zirconate titanate thin film is investigated under subcoercive and above-coercive fields using time-resolved X-ray diffraction. The domain nucleation and growth a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4dac159e11a64ff5a490c95f918e917
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49695
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/49695
Publikováno v:
Journal of Synchrotron Radiation. 23:474-479
Ultrafast X-ray diffraction experiments require careful adjustment of the spatial overlap between the optical excitation and the X-ray probe pulse. This is especially challenging at high laser repetition rates. Sample distortions caused by the large