Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Dennis M. Nenno"'
Publikováno v:
Nature Reviews Physics. 2:682-696
3D insulators can be topologically characterized by the value of their bulk axion field.Axion fields introduce additional terms in Maxwell’s equations for condensed-matter systems.The microscopic expression for the axion field in a crystal is given
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66753c8fd6461d5ada8cc250bf1f39d8
https://doi.org/10.1038/s42254-020-0240-2
https://doi.org/10.1038/s42254-020-0240-2
Autor:
Claudia Felser, Fengren Fan, Cuiying Pei, Yanpeng Qi, Qingge Mu, Prineha Narang, Johannes Gooth, Sergey A. Medvedev, M. A. ElGhazali, Dennis M. Nenno
Publikováno v:
Physical Review Materials. 5
A Weyl semimetal with strong electron-phonon interaction can show axionic coupling in its insulator state at low temperatures, owing to the formation of a charge density wave (CDW). Such a CDW emerges in the linear-chain-compound Weyl semimetal ${\ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c7add481144370d642254b5bf928db0
https://doi.org/10.1103/physrevmaterials.5.084201
https://doi.org/10.1103/physrevmaterials.5.084201
Discovery and observations of exotic, quantized optical and electrical responses have sparked renewed interest in nonmagnetic chiral crystals. Within this class of materials, six group V transition metal ditetrelides, that is, XY$_2$ (X = V, Nb, Ta a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6ce96e7c5cc57a10b59396599caf0f7
Autor:
Marco Battiato, Sascha Keller, Marco Rahm, Dennis M. Nenno, Garik Torosyan, Jörg Lösch, Alexander Brodyanski, Rolf Binder, Dominik Sokoluk, Rene Beigang, Evangelos Th. Papaioannou, Laura Scheuer, Hans Christian Schneider
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-16 (2019)
Scientific Reports
Scientific Reports
Spintronic ferromagnetic/non-magnetic heterostructures are novel sources for the generation of THz radiation based on spin-to-charge conversion in the layers. The key technological and scientific challenge of THz spintronic emitters is to increase th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32a27dcc4b82f30408f9d113ecb8613d
https://doi.org/10.1038/s41598-019-49963-8
https://doi.org/10.1038/s41598-019-49963-8
Metallic bilayer structures have been shown to emit strong terahertz (THz) pulses. We present a predictive multiscale mode that simulates optically induced spin-currents in a Fe/Pt-heterostructure and the emitted electric field. Electronic effects ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc62652a4261fc7c0e76b179a52cc368
We describe a theoretical approach for spin-polarized hot-electron transport, as it occurs after excitation by ultrafast optical pulses in heterostructures formed by ferromagnetic and normal metals. We formulate a spin-dependent particle-in-cell mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8612b6fb1d17276c29ee523e772028d
Publikováno v:
Physical Review B. 94
A spin-dependent Boltzmann transport equation is used to describe charge and spin dynamics resulting from the excitation of hot electrons in a ferromagnet/normal metal heterostructure. As the microscopic Boltzmann equation works with $k$-dependent di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1baad05c0b3704f5a30dad3ac28ceca
https://doi.org/10.1103/physrevb.94.115102
https://doi.org/10.1103/physrevb.94.115102