Zobrazeno 1 - 10
of 479
pro vyhledávání: '"Piot, B."'
Autor:
Mohelsky, I., Wyzula, J., Mardele, F. Le, Abadizaman, F., Caha, O., Dubroka, A., Sun, X. D., Cho, C. W., Piot, B. A., Tanzim, M. F., Aguilera, I., Bauer, G., Springholz, G., Orlita, M.
Publikováno v:
Phys. Rev. B 109, 165205 (2024)
Here we report on Landau level spectroscopy of an epitaxially grown thin film of the topological insulator Sb2Te3, complemented by ellipsometry and magneto-transport measurements. The observed response suggests that Sb2Te3 is a direct-gap semiconduct
Externí odkaz:
http://arxiv.org/abs/2312.07402
Autor:
Jana, Dipankar, Vaclavkova, D., Mohelsky, I., Kapuscinski, P., Cho, C. W., Breslavetz, I., Białek, M., Ansermet, J. -Ph., Piot, B. A., Orlita, M., Faugeras, C., Potemski, M.
Magneto-spectroscopy methods have been employed to study the zero-wavevector magnon excitations in MnPSe$_3$. Experiments carried out as a function of temperature and the applied magnetic field show that two low-energy magnon branches of MnPSe$_3$ in
Externí odkaz:
http://arxiv.org/abs/2309.06866
Autor:
Pawbake, A., Pelini, T., Mohelsky, I., Jana, D., Breslavetz, I., Cho, C. -W., Orlita, M., Potemski, M., Measson, M. -A., Wilson, N., Mosina, K., Soll, A., Sofer, Z., Piot, B. A., Zhitomirsky, M. E., Faugeras, C.
Competition between exchange interactions and magnetocrystalline anisotropy may bring new magnetic states that are of great current interest. An applied hydrostatic pressure can further be used to tune their balance. In this work we investigate the m
Externí odkaz:
http://arxiv.org/abs/2303.01823
Using Landau level spectroscopy, we determine the temperature dependence of the energy band gap in zirconium pentatelluride (ZrTe$_5$). We find that the band gap reaches $E_g=(5 \pm 1)$ meV at low temperatures and increases monotonously when the temp
Externí odkaz:
http://arxiv.org/abs/2211.14597
Autor:
Cho, C. W., Pawbake, A., Aubergier, N., Barra, A. L., Mosina, K., Sofer, Z., Zhitomirsky, M. E., Faugeras, C., Piot, B. A.
Microwave absorption experiments employing a phase-sensitive external resistive detection are performed for a topical van der Waals antiferromagnet CrSBr. The field dependence of two resonance modes is measured in an applied field parallel to the thr
Externí odkaz:
http://arxiv.org/abs/2211.14117
Autor:
Wyzula, J., Lu, X., Santos-Cottin, D., Mukherjee, D. K., Mohelsky, I., Mardele, F. Le, Novak, J., Novak, M., Sankar, R., Krupko, Y., Piot, B. A., Lee, W. -L., Akrap, A., Potemski, M., Goerbig, M. O., Orlita, M.
Publikováno v:
Advanced Science 2105720 (2022)
Optical response of crystalline solids is to a large extent driven by excitations that promote electrons among individual bands. This allows one to apply optical and magneto-optical methods to determine experimentally the energy band gap - a fundamen
Externí odkaz:
http://arxiv.org/abs/2110.07266
Autor:
Mohelsky, I., Dubroka, A., Wyzula, J., Slobodeniuk, A., Martinez, G., Krupko, Y., Piot, B. A., Caha, O., Humlicek, J., Bauer, G., Springholz, G., Orlita, M.
Publikováno v:
Phys. Rev. B 102, 085201 (2020)
Here we report on Landau level spectroscopy in magnetic fields up to 34 T performed on a thin film of topological insulator Bi$_2$Te$_3$ epitaxially grown on a BaF$_2$ substrate. The observed response is consistent with the picture of a direct-gap se
Externí odkaz:
http://arxiv.org/abs/2004.13565
Autor:
Polatkan, S., Goerbig, M. O., Wyzula, J., Kemmler, R., Maulana, L. Z., Piot, B. A., Crassee, I., Akrap, A., Shekhar, C., Felser, C., Dressel, M., Pronin, A. V., Orlita, M.
Publikováno v:
Phys. Rev. Lett. 124, 176402 (2020)
Landau-level spectroscopy, the optical analysis of electrons in materials subject to a strong magnetic field, is a versatile probe of the electronic band structure and has been successfully used in the identification of novel states of matter such as
Externí odkaz:
http://arxiv.org/abs/1912.07327
Autor:
Savchenko, M. L., Kozlov, D. A., Kvon, Z. D., Mikhailov, N. N., Dvoretsky, S. A., Piot, B. A.
We report on transport and capacitance spectroscopy study of two kinds of quantum wells, namely Cd$_{0.02}$Hg$_{0.98}$Te and Cd$_{0.06}$Hg$_{0.94}$Te with the thicknesses of 7.4 and 11.5 nm, accordingly. The fraction of Cd was chosen in a way that th
Externí odkaz:
http://arxiv.org/abs/1901.10307
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