Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Robert Stefanuik"'
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043041 (2022)
We have investigated the rich dynamics of complex wave packets composed of multiple high-lying Rydberg states in He. A quantitative agreement is found between theory and time-resolved photoelectron spectroscopy experiments. We show that the intricate
Externí odkaz:
https://doaj.org/article/1d3b9e6edf944499860f403a3bbc5502
Autor:
Somnath Jana, Ronny Knut, Erna K. Delczeg-Czirjak, Rameez S. Malik, Robert Stefanuik, Joachim A. Terschlüsen, Raghuveer Chimata, Dibya Phuyal, M. Venkata Kamalakar, Serkan Akansel, Daniel Primetzhofer, Martina Ahlberg, Johan Söderström, Johan Åkerman, Peter Svedlindh, Olle Eriksson, Olof Karis
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::864617309478e03f6454caaeeacb8b68
https://doi.org/10.1103/physrevb.107.l180301
https://doi.org/10.1103/physrevb.107.l180301
Autor:
Johan Söderström, Robert Stefanuik, Hermann A. Dürr, Igor Vaskivskyi, Karel Carva, Rameez Saeed Malik, Diego Turenne, Eric E. Fullerton, Leandro Salemi, Peter M. Oppeneer, Jeffrey A. Brock, Ronny Knut, Olof Karis
Publikováno v:
The Journal of Physical Chemistry C. 125:11714-11721
Ever since its first observation, the microscopic origin of ultrafast magnetization dynamics has been actively debated. Even more questions arise when considering composite materials featuring a combination of intrinsic and proximity-induced magnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a9cee7e9cb71ea8a2f8e82d127fff93
https://doi.org/10.1021/acs.jpcc.1c02311
https://doi.org/10.1021/acs.jpcc.1c02311
Autor:
Raphael M. Jay, Ambar Banerjee, Torsten Leitner, Robert Stefanuik, Ru-Pan Wang, Jessica Harich, Emma Beale, Victoria Kabanova, Abdullah Kahraman, Anna Wach, Dimitri Ozerov, Christopher A. Arrell, Philip J. M. Johnson, Grigory Smolentsev, Thomas Huthwelker, Camilia N. Borca, Claudio Cirelli, Camila Bacellar, Christopher J. Milne, Nils Huse, Michael Odelius, Philippe Wernet
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
Using ultrafast X-ray absorption spectroscopy, we observe how a rhodium carbonyl catalyst is formed on femtosecond timescales and reveal the decisive orbital interactions which facilitate the efficient cleavage of an alkane C-H bond from solution.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::974fdc17d33d6298a0d5afaf89f0f73b
https://doi.org/10.1364/up.2022.tu1a.2
https://doi.org/10.1364/up.2022.tu1a.2
Autor:
Johan Söderström, Olle Eriksson, Yaroslav Kvashnin, Dibya Phuyal, I Vaskivskyi, Olof Karis, Sajid Husain, Danny Thonig, Rameez Saeed Malik, Rahul Gupta, Somnath Jana, Ankit Kumar, Ronny Knut, E. K. Delczeg-Czirjak, Robert Stefanuik, Peter Svedlindh
Publikováno v:
Physical Review B. 104
We report on optically induced, ultrafast magnetization dynamics in the Heusler alloy ${\mathrm{Co}}_{2}\mathrm{FeAl}$, probed by time-resolved magneto-optical Kerr effect. Experimental results are compared to results from electronic structure theory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77b075ebd2e95ccc99618369f5c11ddb
https://doi.org/10.1103/physrevb.104.l100408
https://doi.org/10.1103/physrevb.104.l100408
Autor:
M. Mahmoad, G O'Sullivan, Elaine Long, Paddy Hayden, N. Krstulovic, Padraig Dunne, Emma Sokell, Robert Stefanuik
Publikováno v:
Physical Review A. 101
The dual-laser plasma method has been used to record photoabsorption spectra of Tm, $\mathrm{T}{\mathrm{m}}^{+}$, and $\mathrm{T}{\mathrm{m}}^{2+}$ ions. The dominant process is $4d$ photoexcitation, giving rise to structure in the 140--240-eV region
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d956d612cee183b9a5a7cd0c1c391fc4
https://doi.org/10.1103/physreva.101.033404
https://doi.org/10.1103/physreva.101.033404
Autor:
Alexander Yaresko, Rameez Saeed Malik, Johan Söderström, Raghuveer Chimata, Robert Stefanuik, Igor Di Marco, Olle Eriksson, Martina Ahlberg, Inka L. M. Locht, Marco Battiato, Yaroslav Kvashnin, Olof Karis, Johan Åkerman, Ronny Knut, Somnath Jana
Publikováno v:
Physical Review Research. 2
The authors use ultrashort laser pulses to generate a highly non-equilibrium excited state in simple metallic ferromagnets, iron and nickel, in order to elucidate the differences between magnetic excitations and magnons. Utilizing extreme ultraviolet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6add46bd2e11d591e056394aa62ac54f
https://doi.org/10.1103/physrevresearch.2.013180
https://doi.org/10.1103/physrevresearch.2.013180
Autor:
Johan Söderström, Somnath Jana, Joachim Andreas Terschlüsen, Anders Sandell, Ronny Knut, Robert Stefanuik
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 224:33-37
In this progress report we describe several design improvements that have been implemented at the HELIOS laboratory, as well as presenting the output characteristics that have been measured as a result. The main focus will be on the redesign of the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f5d712d09784684dc4c105e74764ec4
https://doi.org/10.1016/j.elspec.2017.09.004
https://doi.org/10.1016/j.elspec.2017.09.004
Autor:
Witold Piskorz, Nicolas Bachellier, Mats Göthelid, Daria Sostina, Ruslan Ovsyannikov, Kess Marks, Henrik Öström, Erika Giangrisostomi, Dan J. Harding, Tony Hansson, Ambra Guarnaccio, Matthias Muntwiler, Klas Engvall, Fredrik Johansson, Yasmine Sassa, Andreas Lindblad, Andrzej Kotarba, Milad Ghadami Yazdi, Konstantin A. Simonov, Robert Stefanuik
Publikováno v:
The Journal of chemical physics 150 (2019). doi:10.1063/1.5098533
info:cnr-pdr/source/autori:Marks, Kess; Yazdi, Milad Ghadami; Piskorz, Witold; Simonov, Konstantin; Stefanuik, Robert; Sostina, Daria; Guarnaccio, Ambra; Ovsyannikov, Ruslan; Giangrisostomi, Erika; Sassa, Yasmine; Bachellier, Nicolas; Muntwiler, Matthias; Johansson, Fredrik O. L.; Lindblad, Andreas; Hansson, Tony; Kotarba, Andrzej; Engvall, Klas; Gothelid, Mats; Harding, Dan J.; Ostrom, Henrik/titolo:Investigation of the surface species during temperature dependent dehydrogenation of naphthalene on Ni(111)/doi:10.1063%2F1.5098533/rivista:The Journal of chemical physics/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:150
info:cnr-pdr/source/autori:Marks, Kess; Yazdi, Milad Ghadami; Piskorz, Witold; Simonov, Konstantin; Stefanuik, Robert; Sostina, Daria; Guarnaccio, Ambra; Ovsyannikov, Ruslan; Giangrisostomi, Erika; Sassa, Yasmine; Bachellier, Nicolas; Muntwiler, Matthias; Johansson, Fredrik O. L.; Lindblad, Andreas; Hansson, Tony; Kotarba, Andrzej; Engvall, Klas; Gothelid, Mats; Harding, Dan J.; Ostrom, Henrik/titolo:Investigation of the surface species during temperature dependent dehydrogenation of naphthalene on Ni(111)/doi:10.1063%2F1.5098533/rivista:The Journal of chemical physics/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume:150
The temperature dependent dehydrogenation of naphthalene on Ni(111) has been investigated using vibrational sum-frequency generation spectroscopy, X-ray photoelectron spectroscopy, scanning tunneling microscopy, and density functional theory with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f380753d1fb19049d43e17ca38a48794
Autor:
Joachim Andreas Terschlüsen, Robert Stefanuik, Ronny Knut, Olof Karis, Rameez Saeed Malik, Somnath Jana, Sara Troisi, Mathias Svanqvist, Stefan Plogmaker, Johan Söderström
Publikováno v:
The Review of scientific instruments. 88(3)
In this paper, we present a spectrometer that is designed for element-specific and time-resolved transverse magneto-optic Kerr effect experiments at the high-harmonic generation pump-probe facility High Energy Laser Induced Overtone Source (HELIOS) l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34fa3aa12ab96c074daa4b3c8dd8f3ca
https://pubmed.ncbi.nlm.nih.gov/28372391
https://pubmed.ncbi.nlm.nih.gov/28372391