Zobrazeno 1 - 10
of 637
pro vyhledávání: '"Jamal, Berakdar"'
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-8 (2023)
Abstract Klein tunneling associated with particle-antiparticle pair productions across a potential barrier is a key prediction of quantum-field theory for relativistic particles. Yet, a direct experimental realization is hampered by the particles lar
Externí odkaz:
https://doaj.org/article/afadf9a7919a4e1f98284536e5000bad
Publikováno v:
Advanced Electronic Materials, Vol 9, Iss 12, Pp n/a-n/a (2023)
Abstract Devices for performing computation and logic operations with low‐energy consumption are of key importance for environmentally friendly data processing and information technology. Here, a design for magnetic elements that use excess heat to
Externí odkaz:
https://doaj.org/article/f52103708830441cb1243d911a26ded1
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract Metastructures of spintronic THz emitters can be engineered to have a well-defined topology characterized by a topological charge. The emitted THz radiation possesses a phase-locked transversal and longitudinal components with the ratio of w
Externí odkaz:
https://doaj.org/article/61358aafbe2f400397406329e5af2779
Autor:
Rouven Dreyer, Alexander F. Schäffer, Hans G. Bauer, Niklas Liebing, Jamal Berakdar, Georg Woltersdorf
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Many proposed spin-wave based devices make use of non-linear behaviour of spin-waves. Here, Dreyer et al show the emergence of non-linear spin waves oscillating at half-integer harmonics in the strong modulation regime. By applying super-Nyquist samp
Externí odkaz:
https://doaj.org/article/b504144f7dd444b6b64f52220e1929c8
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043263 (2023)
The topological phases of monolayer jacutingaite (Pt_{2}HgSe_{3}) under off-resonance high-frequency and high-intensity laser irradiation and staggered sublattice potential V are investigated. The various steady-state phases are realized by an approp
Externí odkaz:
https://doaj.org/article/f4e270334c0a4f018c9ec809b52132da
Publikováno v:
npj Computational Materials, Vol 7, Iss 1, Pp 1-8 (2021)
Abstract Antiferromagnetic (AFM) materials offer an exciting platform for ultrafast information handling with low cross-talks and compatibility with existing technology. Particularly interesting for low-energy cost computing is the spin wave-based re
Externí odkaz:
https://doaj.org/article/6858cad1e6724896a70dcba6e877c9d2
Autor:
Alexander F. Schäffer, Pia Siegl, Martin Stier, Thore Posske, Jamal Berakdar, Michael Thorwart, Roland Wiesendanger, Elena Y. Vedmedenko
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Abstract Topologically distinct magnetic structures like skyrmions, domain walls, and the uniformly magnetized state have multiple applications in logic devices, sensors, and as bits of information. One of the most promising concepts for applying the
Externí odkaz:
https://doaj.org/article/77e6a20c5c5f4dc587970eaedb6c3111
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
The ability to guide and control magnons is central to their potential in future information processing. Here, using a combination of computations and analytical approaches, the authors propose a magnonic waveguide with a unique gain and loss mechani
Externí odkaz:
https://doaj.org/article/635e187f13024d198ea6f677a0540517
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:
Jens Onsgaard
Publikováno v:
ChemPhysChem. 6:1419-1420
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4dd3b2f3a23ad5fe3fcf8f10cbb3754
https://doi.org/10.1002/cphc.200500130
https://doi.org/10.1002/cphc.200500130