Zobrazeno 1 - 10
of 1 450
pro vyhledávání: '"Knap, W"'
Autor:
Yavorskiy, D., Ivonyak, Y., But, D., Karpierz, K., Krajewska, A., Haras, M., Sai, P., Dub, M., Kazakov, A., Cywiński, G., Knap, W., Łusakowski, J.
HgCdTe alloys are unique because by increasing the Cd content x, one modifies the band structure from inverted to normal, which fundamentally modifies the dispersion of bulk and surface or edge (in the case of quantum wells) energy states. Using allo
Externí odkaz:
http://arxiv.org/abs/2406.16122
Autor:
Sai, P., Korotyeyev, V. V., Dub, M., Słowikowski, M., Filipiak, M., But, D. B., Ivonyak, Yu., Sakowicz, M., Lyaschuk, Yu. M., Kukhtaruk, S. M., Cywiński, G., Knap, W.
Publikováno v:
Phys. Rev. X 13, 041003 (2023)
We present an extensive study of resonant two-dimensional (2D) plasmon excitations in grating-gated quantum well heterostructures, which enable an electrical control of periodic charge carrier density profile. Our study combines theoretical and exper
Externí odkaz:
http://arxiv.org/abs/2305.00211
Publikováno v:
Physical Review Applied 19, 064007 (2023)
Coupling of space-separated oscillators is interesting for quantum and communication technologies. In this work, it is shown that two antiferromagnetic oscillators placed inside an electromagnetic cavity couple cooperatively to its terahertz modes an
Externí odkaz:
http://arxiv.org/abs/2212.01129
Autor:
Bray, C., Maussang, K., Consejo, C., Delgado-Notario, J. A., Krishtopenko, S. S., Yahniuk, I., Gebert, S., Ruffenach, S., Dinar, K., Moench, E., Indykiewicz, K., Jouault, B., Torres, J., Meziani, Y. M., Knap, W., Yurgens, A., Ganichev, S. D., Teppe, F.
Publikováno v:
Phys. Rev. B 106, 245141 (2022)
Graphene is a quantum spin Hall insulator with a 45 $\mu$eV wide non-trivial topological gap induced by the intrinsic spin-orbit coupling. Even though this zero-field spin splitting is weak, it makes graphene an attractive candidate for applications
Externí odkaz:
http://arxiv.org/abs/2209.14001
Autor:
Yahniuk, I., Budkin, G. V., Kazakov, A., Otteneder, M., Ziegler, J., Weiss, D., Mikhailov, N. N., Dvoretskii, S. A., Wojciechowski, T., Bel'kov, V. V., Knap, W., Ganichev, S. D.
The emergence of ratchet effects in two-dimensional materials is strongly correlated with the introduction of asymmetry into the system. In general, dual-grating-gate structures forming lateral asymmetric superlattices provide a suitable platform for
Externí odkaz:
http://arxiv.org/abs/2202.13827
Autor:
Yahniuk, I., Kazakov, A., Jouault, B., Krishtopenko, S. S., Kret, S., Grabecki, G., Cywiński, G., Mikhailov, N. N., Dvoretskii, S. A., Przybytek, J., Gavrilenko, V. I., Teppe, F., Dietl, T., Knap, W.
HgTe quantum wells with a thickness of ${\sim}$7 nm may have a graphene-like band structure and have been recently proposed to be potential candidates for quantum Hall effect (QHE) resistance standards under the condition of operation in the fields a
Externí odkaz:
http://arxiv.org/abs/2111.07581
Autor:
Mohammadzadeh, A., Rehman, A., Kargar, F., Rumyantsev, S., Smulko, J. M., Knap, W., Lake, R. K., Balandin, A. A.
We report on depinning of nearly-commensurate charge-density waves in 1T-TaS2 thin-films at room temperature. A combination of the differential current-voltage measurements with the low-frequency noise spectroscopy provide unambiguous means for detec
Externí odkaz:
http://arxiv.org/abs/2104.14051
Autor:
Sai, P., Potashin, S. O., Szola, M., Yavorskiy, D., Cywinski, G., Prystawko, P., Lusakowski, J., Ganichev, S. D., Rumyantsev, S., Knap, W., Kachorovskii, V. Yu.
Publikováno v:
Phys. Rev. B 104, 045301 (2021)
We report on the study of the magnetic ratchet effect in AlGaN/GaN heterostructures superimposed with lateral superlattice formed by dual-grating gate structure. We demonstrate that irradiation of the superlattice with terahertz beam results in the d
Externí odkaz:
http://arxiv.org/abs/2102.12791
Autor:
Nikolenko, A.S., Strelchuk, V.V., Kudryk, Y.Y., Danylenko, I.M., Belyaev, A.E., Kovalenko, T.V., Lysakovskyi, V.V., Ivakhnenko, S.O., Dub, M.M., Sai, P.O., Knap, W.
Publikováno v:
In Diamond & Related Materials March 2024 143
Autor:
Dub, M., Sai, P., Ivonyak, Y., But, D. B., Kacperski, J., Prystawko, P., Kucharski, R., Słowikowski, M., Cywiński, G., Knap, W., Rumyantsev, S.
Publikováno v:
Journal of Applied Physics; 5/21/2024, Vol. 135 Issue 19, p1-9, 9p