Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Simon Vogelgesang"'
Publikováno v:
Structural Dynamics, Vol 4, Iss 4, Pp 044024-044024-7 (2017)
We present the design and fabrication of a micrometer-scale electron gun for the implementation of ultrafast low-energy electron diffraction from surfaces. A multi-step process involving photolithography and focused-ion-beam nanostructuring is used
Externí odkaz:
https://doaj.org/article/9e3773f355ff432fa4d21b03c5d6264b
Autor:
Claus Ropers, Theo Diekmann, Kai Rossnagel, Sergey V. Yalunin, Jan Gerrit Horstmann, G. Von Witte, Simon Vogelgesang, Gero Storeck
Publikováno v:
Structural Dynamics
Structural Dynamics, Vol 7, Iss 3, Pp 034304-034304-15 (2020)
Structural dynamics 7(3), 034304-(2020). doi:10.1063/4.0000018
Structural Dynamics, Vol 7, Iss 3, Pp 034304-034304-15 (2020)
Structural dynamics 7(3), 034304-(2020). doi:10.1063/4.0000018
Structural dynamics 7(3), 034304 - (2020). doi:10.1063/4.0000018
We study the non-equilibrium structural dynamics of the incommensurate and nearly commensurate charge-density wave (CDW) phases in 1$T$-TaS$_2$. Employing ultrafast low-energy elec
We study the non-equilibrium structural dynamics of the incommensurate and nearly commensurate charge-density wave (CDW) phases in 1$T$-TaS$_2$. Employing ultrafast low-energy elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e58fab642abb171ab123609f847a50af
https://hdl.handle.net/21.11116/0000-000B-57E1-521.11116/0000-000B-57E3-3
https://hdl.handle.net/21.11116/0000-000B-57E1-521.11116/0000-000B-57E3-3
Publikováno v:
2018 7th Electronic System-Integration Technology Conference (ESTC).
We report the development of an ultrafast miniaturized pulsed electron gun for the implementation of timeresolved low-energy electron diffraction. This electron gun consists of a nanotip photocathode and an einzel lens for beam collimation. Assembly
Autor:
Claus Ropers, Till Domröse, Thomas Danz, Nora Bach, Armin Feist, Nara Rubiano da Silva, Simon Vogelgesang, Sascha Schäfer
Publikováno v:
Microscopy and Microanalysis. 25:1648-1649
Publikováno v:
2017 30th International Vacuum Nanoelectronics Conference (IVNC).
We describe the development of a micrometer-scale photoelectron gun for the implementation of ultrafast low-energy electron diffraction from surfaces. A photolithography process and focused-ion-beam nanostructuring is used to assemble and electricall
Autor:
Claus Ropers, Gero Storeck, Murat Sivis, Theo Diekmann, Kai Rossnagel, Simon Vogelgesang, Sascha Schäfer, S. Schramm, Jan Gerrit Horstmann
Publikováno v:
Nature Physics
We introduce ultrafast low-energy electron diffraction (ULEED) in backscattering for the study of structural dynamics at surfaces. Using a tip-based source of ultrashort electron pulses, we investigate the optically-driven transition between charge-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::342119825163f60245c5eb72d0bb3fd3
http://arxiv.org/abs/1703.10589
http://arxiv.org/abs/1703.10589
Autor:
Kai Rossnagel, Gero Storeck, Theo Diekmann, Claus Ropers, Sascha Schäfer, Simon Vogelgesang, Bareld Wit, Jan Gerrit Horstmann, Dennis Epp
Publikováno v:
EPJ Web of Conferences, Vol 205, p 08005 (2019)
We demonstrate the capability of ultrafast low-energy electron diffraction to resolve phase-ordering kinetics and structural phase transitions on their intrinsic time scales with ultimate surface sensitivity.
Publikováno v:
Structural Dynamics, Vol 4, Iss 4, Pp 044024-044024-7 (2017)
Structural Dynamics
Structural Dynamics
We present the design and fabrication of a micrometer-scale electron gun for the implementation of ultrafast low-energy electron diffraction from surfaces. A multi-step process involving photolithography and focused-ion-beam nanostructuring is used t