Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Otteneder M"'
Autor:
Hild, M., Golub, L. E., Fuhrmann, A., Otteneder, M., Kronseder, M., Matsubara, M., Kobayashi, T., Oshima, D., Honda, A., Kato, T., Wunderlich, J., Back, C., Ganichev, S. D.
We report on spin ratchet currents driven by terahertz radiation electric fields in a Co/Pt magnetic metamaterial formed by triangle-shaped holes forming an antidots lattice and subjected to an external magnetic field applied perpendicularly to the m
Externí odkaz:
http://arxiv.org/abs/2301.06342
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
A highly superlinear in radiation intensity photoconductance induced by terahertz laser radiation with moderate intensities has been observed in quantum point contacts made of GaAs quantum wells operating in the deep tunneling regime. For very low va
Externí odkaz:
http://arxiv.org/abs/2108.04661
Terahertz photoresistivity of a high-mobility 3D topological insulator based on a strained HgTe film
Autor:
Savchenko, M. L., Otteneder, M., Dmitriev, I. A., Mikhailov, N. N., Kvon, Z. D., Ganichev, S. D.
We report on a detailed study of the terahertz (THz) photoresistivity in a strained HgTe three-dimensional topological insulator (3D TI) for all Fermi level positions: inside the conduction and valence bands, and in the bulk gap. In the presence of a
Externí odkaz:
http://arxiv.org/abs/2008.04695
Autor:
Otteneder, M., Hubmann, S., Lu, X., Kozlov, D., Golub, L. E., Watanabe, K., Taniguchi, T., Efetov, D. K., Ganichev, S. D.
We report on the observation of photogalvanic effects in twisted bilayer graphene (tBLG) with a twist angle of 0.6{\deg}. We show that excitation of tBLG bulk causes a photocurrent, whose sign and magnitude are controlled by orientation of the radiat
Externí odkaz:
http://arxiv.org/abs/2006.08324
Autor:
Otteneder, M., Sacré, D., Yahniuk, I., Budkin, G. V., Diendorfer, K., Kozlov, D. A., Dmitriev, I. A., Mikhailov, N. N., Dvoretsky, S. A., Tarasenko, S. A., Bel'kov, V. V., Knap, W., Ganichev, S. D.
We present studies of the cyclotron resonance (CR) in thick Cd$_x$Hg$_{1-x}$Te films with different cadmium concentrations corresponding to inverted and normal band order, as well as to an almost linear energy dispersion. Our results demonstrate that
Externí odkaz:
http://arxiv.org/abs/2001.04806
Autor:
Hubmann, S., Budkin, G. V., Otteneder, M., But, D., Sacré, D., Yahniuk, I., Diendorfer, K., Bel'kov, V. V., Kozlov, D. A., Mikhailov, N. N., Dvoretsky, S. A., Varavin, V. S., Remesnik, V. G., Tarasenko, S. A., Knap, W., Ganichev, S. D.
Publikováno v:
Phys. Rev. Materials 4, 043607 (2020)
We report on the observation of symmetry breaking and the circular photogalvanic effect in Cd$_x$Hg$_{1-x}$Te alloys. We demonstrate that irradiation of bulk epitaxial films with circularly polarized terahertz radiation leads to the circular photogal
Externí odkaz:
http://arxiv.org/abs/1911.01936
Autor:
Candussio, S., Budkin, G. V., Otteneder, M., Kozlov, D. A., Dmitriev, I. A., Bel'kov, V. V., Kvon, Z. D., Mikhailov, N. N., Dvoretsky, S. A., Ganichev, S. D.
Publikováno v:
Phys. Rev. Materials 3, 054205 (2019)
We report on the study of magneto-photogalvanic and magnetotransport phenomena in 200 nm partially strained HgTe films. This thickness is slightly larger than the estimated critical thickness of lattice relaxation leaving the film partially relaxed w
Externí odkaz:
http://arxiv.org/abs/1902.02972
Autor:
Hubmann, S., Budkin, G. V., Dmitriev, A. P., Gebert, S., Belkov, V. V., Ivchenko, E. L., Baumann, S., Otteneder, M., Kozlov, D. A., Mikhailov, N. N., Dvoretsky, S. A., Kvon, Z. D., Ganichev, S. D.
Publikováno v:
Phys. Rev. B 99, 085312 (2019)
We report on a strong nonlinear behavior of the photogalvanics and photoconductivity under excitation of HgTe quantum wells (QWs) by intense terahertz (THz) radiation. The increasing radiation intensity causes an inversion of the sign of the photocur
Externí odkaz:
http://arxiv.org/abs/1812.01304
Autor:
Otteneder, M., Dmitriev, I. A., Candussio, S., Savchenko, M. L., Kozlov, D. A., Bel'kov, V. V., Kvon, Z. D., Mikhailov, N. N., Dvoretsky, S. A., Ganichev, S. D.
Publikováno v:
Phys. Rev. B 98, 245304 (2018)
We report on the observation of terahertz radiation induced photoconductivity and of terahertz analog of the microwave-induced resistance oscillations (MIRO) in HgTe-based quantum well (QW) structures of different width. The MIRO-like effect has been
Externí odkaz:
http://arxiv.org/abs/1807.10663