Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Ballottin, A"'
Autor:
Smirnov, D. S., Holler, J., Kempf, M., Zipfel, J., Nagler, P., Ballottin, M. V., Mitioglu, A. A., Chernikov, A., Christianen, P. C. M., Schüller, C., Korn, T.
Heterobilayers consisting of MoSe$_2$ and WSe$_2$ monolayers can host optically bright interlayer excitons with intriguing properties such as ultralong lifetimes and pronounced circular polarization of their photoluminescence due to valley polarizati
Externí odkaz:
http://arxiv.org/abs/2205.03376
Autor:
Selig, Malte, Christiansen, Dominik, Katzer, Manuel, Ballottin, Mariana V., Christianen, Peter C. M., Knorr, Andreas
The interplay of the non-equivalent corners in the Brillouin zone of transition metal dichalcogenides have been investigated extensively. While experimental and theoretical works contributed to a detailed understanding of the relaxation of selective
Externí odkaz:
http://arxiv.org/abs/2201.03362
Autor:
Holler, Johannes, Selig, Malte, Kempf, Michael, Zipfel, Jonas, Nagler, Philipp, Katzer, Manuel, Katsch, Florian, Ballottin, Mariana V., Mitioglu, Anatolie A., Chernikov, Alexey, Christianen, Peter C. M., Schüller, Christian, Knorr, Andreas, Korn, Tobias
Publikováno v:
Phys. Rev. B 105, 085303, 2022
In van der Waals heterostructures (HS) consisting of stacked MoSe$_2$ and WSe$_2$ monolayers, optically bright interlayer excitons (ILE) can be observed when the constituent layers are crystallographically aligned. The symmetry of the monolayers allo
Externí odkaz:
http://arxiv.org/abs/2111.03336
Autor:
Zipfel, Jonas, Holler, Johannes, Mitioglu, Anatolie A., Ballottin, Mariana V., Nagler, Philipp, Stier, Andreas V., Taniguchi, Takashi, Watanabe, Kenji, Crooker, Scott A., Christianen, Peter C. M., Korn, Tobias, Chernikov, Alexey
We experimentally study the radii of excitons in hBN-encapsulated WS2 monolayers by means of magneto-optical reflectance spectroscopy at cryogenic temperatures in magnetic fields up to 29 T. We observe field-induced energy shifts of the exciton groun
Externí odkaz:
http://arxiv.org/abs/1808.07786
Autor:
Surrente, Alessandro, Klopotowski, Lukasz, Zhang, Nan, Baranowski, Michal, Mitioglu, Anatolie A., Ballottin, Mariana V., Christianen, Peter C. M., Dumcenco, Dumitru, Kung, Yen-Cheng, Maude, Duncan K., Kis, Andras, Plochocka, Paulina
Degenerate extrema in the energy dispersion of charge carriers in solids, also referred to as valleys, can be regarded as a binary quantum degree of freedom, which can potentially be used to implement valleytronic concepts in van der Waals heterostru
Externí odkaz:
http://arxiv.org/abs/1805.10010
Autor:
Nagler, Philipp, Ballottin, Mariana V., Mitioglu, Anatolie A., Durnev, Mikhail V., Taniguchi, Takashi, Watanabe, Kenji, Chernikov, Alexey, Schüller, Christian, Glazov, Mikhail M., Christianen, Peter C. M., Korn, Tobias
Publikováno v:
Phys. Rev. Lett. 121, 057402 (2018)
We investigate the magnetic-field-induced splitting of biexcitons in monolayer WS$_2$ using polarization-resolved photoluminescence spectroscopy in out-of-plane magnetic fields up to 30 T. The observed $g$ factor of the biexciton amounts to $-3.89$,
Externí odkaz:
http://arxiv.org/abs/1801.09255
Autor:
Shornikova, Elena V., Biadala, Louis, Yakovlev, Dmitri R., Feng, Donghai H., Sapega, Victor F., Flipo, Nathan, Golovatenko, Aleksandr A., Semina, Marina A., Rodina, Anna V., Mitioglu, Anatolie A., Ballottin, Mariana V., Christianen, Peter C. M., Kusrayev, Yuri G., Nasilowski, Michel, Dubertret, Benoit, Bayer, Manfred
Publikováno v:
Nano Lett. 18 (2018) 373-380
We address spin properties and spin dynamics of carriers and charged excitons in CdSe/CdS colloidal nanoplatelets with thick shells. Magneto-optical studies are performed by time-resolved and polarization-resolved photoluminescence, spin-flip Raman s
Externí odkaz:
http://arxiv.org/abs/1710.00593
Autor:
Shornikova, Elena V., Biadala, Louis, Yakovlev, Dmitri R., Sapega, Victor F., Kusrayev, Yuri G., Mitioglu, Anatolie A., Ballottin, Mariana V., Christianen, Peter C. M., Belykh, Vasilii V., Kochiev, Mikhail V., Sibeldin, Nikolai N., Golovatenko, Aleksandr A., Rodina, Anna V., Gippius, Nikolay A., Kuntzmann, Alexis, Jiang, Ye, Nasilowski, Michel, Dubertret, Benoit, Bayer, Manfred
Publikováno v:
Nanoscale 10 (2018) 646-656
We study the band-edge exciton fine structure and in particular its bright-dark splitting in colloidal semiconductor nanocrystals by four different optical methods based on fluorescence line narrowing and time-resolved measurements at various tempera
Externí odkaz:
http://arxiv.org/abs/1709.09610
Autor:
Nagler, Philipp, Ballottin, Mariana V., Mitioglu, Anatolie A., Mooshammer, Fabian, Paradiso, Nicola, Strunk, Christoph, Huber, Rupert, Chernikov, Alexey, Christianen, Peter C. M., Schüller, Christian, Korn, Tobias
Publikováno v:
Nature Communications 8, 1551 (2017)
Monolayers of semiconducting transition metal dichalcogenides exhibit intriguing fundamental physics of strongly coupled spin and valley degrees of freedom for charge carriers. While the possibility of exploiting these properties for information proc
Externí odkaz:
http://arxiv.org/abs/1704.02208
Autor:
Nagler, Philipp, Plechinger, Gerd, Ballottin, Mariana V., Mitioglu, Anatolie, Meier, Sebastian, Paradiso, Nicola, Strunk, Christoph, Chernikov, Alexey, Christianen, Peter C. M., Schüller, Christian, Korn, Tobias
Publikováno v:
2D Mater. 4, 025112 (2017)
In heterostructures consisting of different transition-metal dichalcogenide monolayers, a staggered band alignment can occur, leading to rapid charge separation of optically generated electron-hole pairs into opposite monolayers. These spatially sepa
Externí odkaz:
http://arxiv.org/abs/1703.00379