134 citations · 375 across the 11 of their papers we have counts for
11 papers
Enhanced quasiparticle dynamics of quantum well states: the giant Rashba system BiTeI and topological insulators
V. Gnezdilov, P. Lemmens, D. Wulferding +5
In the giant Rashba semiconductor BiTeI electronic surface scattering with Lorentzian linewidth is observed that shows a strong dependence on surface termination and surface potent…
Helical fluctuations in the Raman response of the topological insulator Bi2Se3
V. Gnezdilov, Yu. G. Pashkevich, H. Berger +3
The topological insulator Bi2Se3 shows a Raman scattering response related to topologically protected surface states amplified by a resonant interband transition. Most significantl…
High-pressure infrared spectroscopy: tuning of the low-energy excitations in correlated electron systems
I. Kezsmarki, R. Gaal, C. C. Homes +5
We have extended the range of the high-pressure optical spectroscopy to the far-infrared region keeping the accuracy of ambient-pressure experiments. The newly-developed method off…
Collective Charge Excitations below the Metal-to-Insulator Transition in BaVS3
T. Ivek, T. Vuletic, S. Tomic +3
The charge response in the barium vanadium sulfide (BaVS3) single crystals is characterized by dc resistivity and low frequency dielectric spectroscopy. A broad relaxation mode in…
Separation of orbital contributions to the optical conductivity of BaVS
I. Kezsmarki, G. Mihaly, R. Gaal +6
The correlation-driven metal-insulator transition (MIT) of BaVS was studied by polarized infrared spectroscopy. In the metallic state two types of electrons coexist at the Ferm…
Optical evidence for a magnetically driven structural transition in the spin web
G. Caimi, L. Degiorgi, H. Berger +1
is a modest frustrated spin system, which undergoes an anti-ferromagnetic transition at . The anti-ferromagnetic spin alignment in be…