Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Yaroslav Pavlyukh"'
Autor:
Konrad Gillmeister, Denis Golež, Cheng-Tien Chiang, Nikolaj Bittner, Yaroslav Pavlyukh, Jamal Berakdar, Philipp Werner, Wolf Widdra
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Nickel Oxide (NiO) is a strongly correlated insulator with antiferromagnetic (AFM) ordering. Here, using pump-probe photoemission on NiO, the authors observe coherent terahertz oscillations in the photoemission signal, a signature of an in-gap state
Externí odkaz:
https://doaj.org/article/a52bdd48b2014fc7a8a5da39004ed897
Autor:
Sergey Usenko, Michael Schüler, Armin Azima, Markus Jakob, Leslie L Lazzarino, Yaroslav Pavlyukh, Andreas Przystawik, Markus Drescher, Tim Laarmann, Jamal Berakdar
Publikováno v:
New Journal of Physics, Vol 18, Iss 11, p 113055 (2016)
Fullerene complexes may play a key role in the design of future molecular electronics and nanostructured devices with potential applications in light harvesting using organic solar cells. Charge and energy flow in these systems is mediated by many-bo
Externí odkaz:
https://doaj.org/article/d597da799ab142f49882d9c5aaa25293
Publikováno v:
Physical Review Letters. 127
The interaction of electrons with quantized phonons and photons underlies the ultrafast dynamics of systems ranging from molecules to solids, and it gives rise to a plethora of physical phenomena experimentally accessible using time-resolved techniqu
Autor:
Yaroslav Pavlyukh
Publikováno v:
Physical Review B. 101
Diagrammatic perturbation theory is a powerful tool for the investigation of interacting many-body systems, the self-energy operator $\mathrm{\ensuremath{\Sigma}}$ encoding all the variety of scattering processes. In the simplest scenario of correlat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd977222f9205ea5accd110c64366568
Publikováno v:
Physical Review B. 100
In view of recent experiments, the determination of magnetic anisotropy (MA) is revisited, thus leading to unexpected relations between the pertinent tensors. The sudden perturbation of the preferential magnetic direction triggers magnetization dynam
Publikováno v:
Physical Review B. 99
Autor:
Yaroslav Pavlyukh
Publikováno v:
Physical Review A. 98
Inspired by the extended Koopmans theorem, we demonstrate that excited electronic states can efficiently and very accurately be computed from the ground-state density correlators. That this is possible in principle does not come as a surprise. Howeve
Publikováno v:
Physical Review B. 97
Electronic and magnetic properties of molecular nanomagnets are determined by competing energy scales due to the crystal field splitting, the exchange interactions between transition metal atoms, and relativistic effects. We present a comprehensive t
Autor:
Yaroslav Pavlyukh, Michael Schüler
Publikováno v:
Physical Review B. 97
We present results for many-body perturbation theory for the one-body Green's function at finite temperatures using the Matsubara formalism. Our method relies on the accurate representation of the single-particle states in standard Gaussian basis set