Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Berghaeuser, Gunnar"'
Autor:
Steinleitner, Philipp, Merkl, Philipp, Graf, Alexander, Nagler, Philipp, Zipfel, Jonas, Schüller, Christian, Korn, Tobias, Chernikov, Alexey, Huber, Rupert, Brem, Samuel, Selig, Malte, Berghäuser, Gunnar, Malic, Ermin
Heterostructures of van der Waals bonded layered materials offer unique means to tailor dielectric screening with atomic-layer precision, opening a fertile field of fundamental research. The optical analyses used so far have relied on interband spect
Externí odkaz:
http://arxiv.org/abs/1806.11319
Publikováno v:
Phys. Rev. B 99, 195454 (2019)
The trend towards ever smaller high-performance devices in modern technology requires novel materials with new functionalities. The recent emergence of atomically thin two-dimensional (2D) materials has opened up possibilities for the design of ultra
Externí odkaz:
http://arxiv.org/abs/1806.07350
Atomically thin transition metal dichalcogenides (TMDs) hold promising potential for applications in optoelectronics. Due to their direct band gap and the extraordinarily strong Coulomb interaction, TMDs exhibit efficient light-matter coupling and ti
Externí odkaz:
http://arxiv.org/abs/1801.07039
Autor:
Feierabend, Maja, Berghaeuser, Gunnar, Selig, Malte, Brem, Samuel, Shegai, Timur, Eigler, Siegfried, Malic, Ermin
Publikováno v:
Phys. Rev. Materials 2, 014004 (2018)
Monolayer transition metal dichalcogenides (TMDs) show an optimal surface-to-volume ratio and are thus promising candidates for novel molecule sensor devices. It was recently predicted that a certain class of molecules exhibiting a large dipole momen
Externí odkaz:
http://arxiv.org/abs/1712.05219
Publikováno v:
Scientific Reports 8, Article number: 8238 (2018)
Monolayers of transition-metal dichalcogenides (TMDs) are characterized by an extraordinarily strong Coulomb interaction giving rise to tightly bound excitons with binding energies of hundreds of meV. Excitons dominate the optical response as well as
Externí odkaz:
http://arxiv.org/abs/1712.04808
Autor:
Christiansen, Dominik, Selig, Malte, Berghäuser, Gunnar, Schmidt, Robert, Niehues, Iris, Schneider, Robert, Arora, Ashish, de Vasconcellos, Steffen Michaelis, Bratschitsch, Rudolf, Malic, Ermin, Knorr, Andreas
Publikováno v:
D. Christiansen et. al., Phys. Rev. Lett. 119, 187402 (2017)
Excitons dominate the optical properties of monolayer transition metal dichalcogenides (TMDs). Besides optically accessible bright exciton states, TMDs exhibit also a multitude of optically forbidden dark excitons. Here, we show that efficient excito
Externí odkaz:
http://arxiv.org/abs/1711.08691
Autor:
Lindlau, Jessica, Selig, Malte, Neumann, Andre, Colombier, Léo, Kim, Jonghwan, Berghäuser, Gunnar, Wang, Feng, Malic, Ermin, Högele, Alexander
Publikováno v:
Nat. Commun. 9, 2586 (2018)
Monolayer (ML) transition metal dichalcogenides (TMDs) undergo substantial changes in the single-particle band structure and excitonic optical response upon the addition of just one layer. As opposed to the single-layer limit, the bandgap of bilayer
Externí odkaz:
http://arxiv.org/abs/1710.00989
Autor:
Malic, Ermin, Selig, Malte, Feierabend, Maja, Brem, Samuel, Christiansen, Dominik, Wendler, Florian, Knorr, Andreas, Berghäuser, Gunnar
Publikováno v:
Phys. Rev. Materials 2, 014002 (2018)
Monolayer transition metal dichalcogenides (TMDs) exhibit a remarkably strong Coulomb interaction that manifests in tightly bound excitons. Due to the complex electronic band structure exhibiting several spin-split valleys in the conduction and valen
Externí odkaz:
http://arxiv.org/abs/1709.00941
Autor:
Berghäuser, Gunnar, Steinleitner, Philipp, Merkl, Philipp, Huber, Rupert, Knorr, Andreas, Malic, Ermin
Publikováno v:
Phys. Rev. B 98, 020301 (2018)
Transition metal dichalcogenides (TMDs) exhibit a remarkable exciton physics including optically accessible (bright) as well as spin- and momentum-forbidden (dark) excitonic states. So far the dark exciton landscape has not been revealed leaving in p
Externí odkaz:
http://arxiv.org/abs/1708.07725
Publikováno v:
Phys. Rev. B 96, 045425 (2017)
Strain presents a straightforward tool to tune electronic properties of atomically thin nanomaterials that are highly sensitive to lattice deformations. While the influence of strain on the electronic band structure has been intensively studied, ther
Externí odkaz:
http://arxiv.org/abs/1706.00491