Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Uykur E"'
Autor:
Uykur, E., Tsirlin, A. A., Long, F., Wenzel, M., Dressel, M., Mosina, K., Sofer, Z., Helm, M., Zhou, S.
We report temperature-dependent reflectivity spectra of the layered van der Waals magnet CrSBr in the far-infrared region. Polarization-dependent measurements resolve the vibrational modes along the E$\|a$- and $b$-axes and reveal the clear structura
Externí odkaz:
http://arxiv.org/abs/2405.07853
Autor:
Wenzel, M., Uykur, E., Tsirlin, A. A., Pal, S., Roy, R. Mathew, Yi, C., Shekhar, C., Felser, C., Pronin, A. V., Dressel, M.
Publikováno v:
Phys. Rev. Lett. 132, 266505 (2024)
The properties of kagome metals are governed by the interdependence of band topology and electronic correlations resulting in remarkably rich phase diagrams. Here, we study the temperature evolution of the bulk electronic structure of the antiferroma
Externí odkaz:
http://arxiv.org/abs/2401.13474
Autor:
Polatkan, S., Uykur, E., Wyzula, J., Orlita, M., Shekhar, C., Felser, C., Dressel, M., Pronin, A. V.
Publikováno v:
Phys. Rev. B 108, L241201 (2023)
The magneto-optical properties of (001)-oriented NbAs single crystals have been studied in the spectral range from 5 to 150 meV and in magnetic fields of up to 13 T. A rich spectrum of inter-Landau-level transitions is revealed by these measurements.
Externí odkaz:
http://arxiv.org/abs/2312.03094
Autor:
Polatkan, S., Uykur, E., Mohelsky, I., Wyzula, J., Orlita, M., Shekhar, C., Felser, C., Dressel, M., Pronin, A. V.
Publikováno v:
Phys. Rev. B 108, L201201 (2023)
We measured the magneto-reflectivity spectra (4 - 90 meV, 0 - 16 T) of the triple-point semimetal GdPtBi and found them to demonstrate two unusual broad features emerging in field. The electronic bands of GdPtBi are expected to experience large excha
Externí odkaz:
http://arxiv.org/abs/2311.08312
Autor:
Gonçalves-Faria, M. V., Pashkin, A., Wang, Q., Lei, H. C., Winnerl, S., Tsirlin, A. A., Helm, M., Uykur, E.
Temperature- and fluence-dependent carrier dynamics of the magnetic Kagome metal Fe$_3$Sn$_2$ were studied using the ultrafast optical pump-probe technique. Two carrier relaxation processes ($\tau_1$ and $\tau_2$) and a laser induced coherent optical
Externí odkaz:
http://arxiv.org/abs/2307.05139
Publikováno v:
Phys. Rev. B 106, L241108 (2022)
Kagome metals possess peculiar optical spectra consisting of contributions from free charge carriers in a Drude-type response, localized carriers seen as a strongly temperature-dependent localization peak, and, in some cases, phonons displaying stron
Externí odkaz:
http://arxiv.org/abs/2208.00756
Publikováno v:
Phys. Rev. B 105, 245123 (2022)
Temperature-dependent reflectivity studies on the non-magnetic kagome metal RbV$_3$Sb$_5$ in a broad energy range (50 cm$^{-1}$ $-$ 20000 cm$^{-1}$, equivalent to 6 meV $-$ 2.5 eV) down to 10 K are reported. Below $T_{\rm CDW}=102$ K, the optical spe
Externí odkaz:
http://arxiv.org/abs/2112.07501
Publikováno v:
Phys. Rev. B 104, 205127 (2021)
In order to understand the physical properties of the series of organic conductors $\kappa$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]$X$ with $X$ = Cl, Br, and I, not only electronic correlations but also the effect of disorder has to be taken into account. While
Externí odkaz:
http://arxiv.org/abs/2111.12394
Autor:
Ebad-Allah, J., Rojewski, S., Vöst, M., Eickerling, G., Scherer, W., Uykur, E., Sankar, Raman, Varrassi, L., Franchini, C., Ahn, K., Kuneš, J., Kuntscher, C. A.
The anisotropic optical response of the layered, nodal-line semimetal ZrSiS at ambient and high pressure is investigated by frequency-dependent reflectivity measurements for the polarization along and perpendicular to the layers. The highly anisotrop
Externí odkaz:
http://arxiv.org/abs/2106.11600
Autor:
Uykur, E., Ortiz, B. R., Iakutkina, O., Wenzel, M., Wilson, S. D., Dressel, M., Tsirlin, A. A.
Publikováno v:
Phys. Rev. B 104, 045130 (2021)
Temperature-dependent reflectivity measurements on the kagome metal CsV$_3$Sb$_5$ in a broad frequency range of $50-20000$ cm$^{-1}$ down to $T$=10 K are reported. The charge-density wave (CDW) formed below $T_{\rm CDW}$ = 94 K manifests itself in a
Externí odkaz:
http://arxiv.org/abs/2104.14022