Zobrazeno 1 - 10
of 470
pro vyhledávání: '"Hackl R"'
Autor:
He, G., Kute, M., Xu, Z. C., Peis, L., Stumberger, R., Baum, A., Jost, D., Been, E. M., Moritz, B., Shi, Y. G., Devereaux, T. P., Hackl, R.
We present results of a Raman scattering study of the Kagome ferromagnet Co$_3$Sn$_2$S$_2$, with a focus on electronic and phononic excitations and their interplay. In addition, the electronic band structure is analyzed theoretically, enabling a semi
Externí odkaz:
http://arxiv.org/abs/2401.14734
Autor:
Lazarevic, N., Baum, A., Milosavljevic, A., Peis, L., Stumberger, R., Bekaert, J., Solajic, A., Pesic, J., Wang, Aifeng, Scepanovic, M., Milosevic, M. V., Petrovic, C., Popovic, Z. V., Hackl, R.
A Raman scattering study covering the entire substitution range of the FeSe$_{1-x}$S$_x$ solid solution is presented. Data were taken as a function of sulfur concentration $x$ for $0\le x \le 1$, of temperature and of scattering symmetry. All type of
Externí odkaz:
http://arxiv.org/abs/2202.02227
Autor:
Mijin, S. Đurđić, Baum, A., Bekaert, J., Šolajić, A., Pešić, J., Liu, Y., He, Ge, Milošević, M. V., Petrovic, C., Popović, Z. V., Hackl, R., Lazarević, N.
Publikováno v:
Phys. Rev. B 103, 245133 (2021)
We present a polarization-resolved, high-resolution Raman scattering study of the three consecutive charge density wave (CDW) regimes in $1T$-TaS$_2$ single crystals, supported by \textit{ab initio} calculations. Our analysis of the spectra within th
Externí odkaz:
http://arxiv.org/abs/2102.04821
In superconductors the Anderson-Higgs mechanism allows for the existence of a collective amplitude (Higgs) mode which can couple to eV-light mainly in a non-linear Raman-like process. The experimental non-equilibrium results on isotropic superconduct
Externí odkaz:
http://arxiv.org/abs/2012.01922
Autor:
Lazarevic, N, Hackl, R
Inelastic scattering of visible light (Raman effect) offers a window into properties of correlated metals such as spin, electron and lattice dynamics as well as their mutual interactions. In this review we focus on electronic and spin excitations in
Externí odkaz:
http://arxiv.org/abs/1909.00173
Theoretical analysis typically involves imaginary-time correlation functions. Inferring real-time dynamical response functions from this information is notoriously difficult. However, as we articulate here, it is straightforward to compute imaginary-
Externí odkaz:
http://arxiv.org/abs/1907.10182
Autor:
Baum, A., Li, Ying, Tomić, M., Lazarević, N., Jost, D., Löffler, F., Muschler, B., Böhm, T., Chu, J. -H., Fisher, I. R., Valentí, R., Mazin, I. I., Hackl, R.
Publikováno v:
Phys. Rev. B 98, 075113 (2018)
We report results of Raman scattering experiments on twin-free BaFe$_{2}$As$_{2}$ with the main focus placed on understanding the influence of electronic and spin degrees of freedom on the lattice dynamics. In particular, we scrutinize the $E_g$ mode
Externí odkaz:
http://arxiv.org/abs/1806.04989
Autor:
Baum, A., Milosavljević, A., Lazarević, N., Radonjić, M. M., Nikolić, B., Mitschek, M., Maranloo, Z. Inanloo, Šćepanović, M., Grujuić-Brojčin, M., Stojilović, N., Opel, M., Wang, Aifeng, Petrovic, C., Popović, Z. V., Hackl, R.
Publikováno v:
Phys. Rev. B 97, 054306 (2018)
We present results from light scattering experiments on tetragonal FeS with the focus placed on lattice dynamics. We identify the Raman active A1g and B1g phonon modes, a second order scattering process involving two acoustic phonons, and contributio
Externí odkaz:
http://arxiv.org/abs/1712.02724
Autor:
Chelwani, N., Hoch, D., Jost, D., Botka, B., Scholz, J. -R., Richter, R., Theodoridou, M., Kretzschmar, F., Böhm, T., Kamarás, K., Hackl, R.
Publikováno v:
Appl. Phys. Lett. 110, 193504 (2017)
We report the development of a detection optics for the integration of Raman scattering and scanning probe microscopy at low temperature based on a parabolic mirror. In our set-up half of the paraboloid mirror covers a solid angle of $\pi$ correspond
Externí odkaz:
http://arxiv.org/abs/1702.02086
Publikováno v:
Phys. Rev. Lett. 117, 257001 (2016)
In unconventional superconductors, understanding the form of the pairing interaction is the primary goal. In this regard, Raman spectroscopy is a very useful tool, as it identifies the ground state and also the subleading pairing channels by probing
Externí odkaz:
http://arxiv.org/abs/1611.04541