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pro vyhledávání: '"Widdra, W"'
We discuss some experimental facets of electron pair emission from surfaces using two different experimental approaches. In the first case the instrument consists of a pair of hemispherical analyzers which are operated with continuous primary beams o
Externí odkaz:
http://arxiv.org/abs/2111.09203
Autor:
Windsor, Y. W., Zahn, D., Kamrla, R., Feldl, J., Seiler, H., Chiang, C. -T., Ramsteiner, M., Widdra, W., Ernstorfer, R., Rettig, L.
Publikováno v:
Phys. Rev. Lett. 126, 147202 (2021)
We use femtosecond electron diffraction to study ultrafast lattice dynamics in the highly correlated antiferromagnetic (AF) semiconductor NiO. Using the scattering vector (Q) dependence of Bragg diffraction, we introduce a Q-resolved effective lattic
Externí odkaz:
http://arxiv.org/abs/2011.07289
Publikováno v:
In Journal of Electron Spectroscopy and Related Phenomena May 2022 257
Publikováno v:
Phys. Rev. B 97, 085424 (2018)
Well-ordered ultrathin films of NiO have been prepared on an Ag(001) substrate using molecular beam epitaxy. With the help of angle-resolved two-photon photoemission (2PPE) a series of image potential states (IPS) for film thicknesses of 2--4 monolay
Externí odkaz:
http://arxiv.org/abs/1506.01283
For a ultrathin NiO(001) film of 4 monolayers (ML) thickness grown on Ag(001), the vibrational properties have been determined by high-resolution electron energy loss spectroscopy (HREELS). For the well-ordered pseudomorphically grown film, nine phon
Externí odkaz:
http://arxiv.org/abs/1506.01278
The dynamical properties of the high-density Ru(001)-(1$\times$1)-O phase has been investigated by a combined high-resolution electron energy loss spectroscopy and density functional theory study. Due to a strong static outward relaxation of the firs
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211704
Publikováno v:
In Surface Science January 2016 643:23-29
Akademický článek
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Publikováno v:
In Surface Science January 2014 619:83-89
Publikováno v:
In Chemical Physics Letters 12 April 2012 532:116-118