R. Hackl

activity

20012024

most citedRaman scattering evidence for a cascade-like evolution of the charge-density-wave collective amplitude mode

59 citations · 336 across the 15 of their papers we have counts for

collaborators

15 papers

cond-mat.str-el2024★ 1 cited

Chiral electronic excitations and strong electron-phonon coupling to Weyl fermions in the Kagome semimetal Co $_{3}$ Sn $_{2}$ S $_{2}$

G. He, M. Kute, Z. C. Xu +10

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. We provide a th…

cond-mat.supr-con2022★ 6 cited

Evolution of lattice, spin, and charge properties across the phase diagram of FeSe $_{1 - x}$ S $_{x}$

N. Lazarevic, A. Baum, A. Milosavljevic +11

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…

cond-mat.supr-con2021★ 5 cited

Quantum critical fluctuations in an Fe-based superconductor

Daniel Jost, Leander Peis, Ge He +9

Quantum critical fluctuations may prove to play an instrumental role in the formation of unconventional superconductivity. Here, we show that the characteristic scaling of a margin…

cond-mat.supr-con2017★ 32 cited

Phonon anomalies in FeS

A. Baum, A. Milosavljević, N. Lazarević +12

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 or…

cond-mat.str-el2013★ 4 cited

Localized states in the Mott insulator κ-(BEDT-TTF)_2Cu[N(CN)_2]Cl as probed by photoluminescence

N. Drichko, R. Hackl, J. A. Schlueter

We compare the photoluminescence spectra of the low-temperature Mott insulator \etcl (T_{MIT}=40 K) with spectra of metallic κ-(BEDT-TTF)_2Cu[N(CN)_2]Br, which is superconducting b…

cond-mat.supr-con2011★ 30 cited

Relationship among superconductivity, pseudogap, and high-energy magnetic fluctuations in a model high-Tc superconductor from electronic Raman scattering

Yuan Li, M. Le Tacon, M. Bakr +9

We use electronic Raman scattering to study the model single-layer cuprate superconductor HgBa2CuO4+d. In an overdoped sample, we observe a pronounced amplitude enhancement of a hi…

cond-mat.str-el2011★ 17 cited

An Investigation of Particle-Hole Asymmetry in the Cuprates via Electronic Raman Scattering

B. Moritz, S. Johnston, T. P. Devereaux +7

In this paper we examine the effects of electron-hole asymmetry as a consequence of strong correlations on the electronic Raman scattering in the normal state of copper oxide high…

cond-mat.dis-nn2010★ 2 cited

Light scattering study of low-energy vibrational excitations in the metallic glass Ni $_{67}$ Zr $_{33}$ using electronic Raman scattering

B. Muschler, I. Tüttő, A. Zawadowski +2

The Raman response of the metallic glass Ni $_{67}$ Zr $_{33}$ is measured as a function of polarization and temperature and analyzed theoretically. Unexpectedly, the intensity in the…

cond-mat.supr-con2010★ 19 cited

Electron-boson glue function derived from electronic Raman scattering

B. Muschler, W. Prestel, E. Schachinger +4

Raman scattering cross sections depend on photon polarization. In the cuprates nodal and antinodal directions are weighted more strongly in $B_{2 g}$ and $B_{1 g}$ symmetry, respecti…

cond-mat.supr-con2010★ 43 cited

Electron interactions and charge ordering in La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$

B. Muschler, W. Prestel, L. Tassini +9

We present results of inelastic light scattering experiments on single-crystalline La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ in the doping range $0.00 \leq x = p \leq 0.30$ and Tl $_{2}$ Ba $_{2}$ CuO $_{6 + δ}$ …

cond-mat.supr-con2010★ 58 cited

Pinpointing Gap Minima in Ba(Fe $_{0.94}$ Co $_{0.06})_{2}$ As $_{2}$ \textit{via} Band Structure Calculations and Electronic Raman Scattering

I. I. Mazin, T. P. Devereaux, J. G. Analytis +4

A detailed knowledge of the gap structure for the Fe-pnictide superconductors is still rather rudimentary, with several conflicting reports of either nodes, deep gap minima, or ful…

cond-mat.str-el2009★ 59 cited

Raman scattering evidence for a cascade-like evolution of the charge-density-wave collective amplitude mode

M. Lavagnini, H. -M. Eiter, L. Tassini +6

The two-dimensional rare-earth tri-tellurides undergo a unidirectional charge-density-wave (CDW) transition at high temperature and, for the heaviest members of the series, a bidir…

cond-mat.supr-con2009★ 9 cited

Spectral signatures of critical charge and spin fluctuations in cuprates

M. Grilli, S. Caprara, C. Di Castro +4

We discuss how Raman spectra of high temperature superconducting cuprates are affected by nearly-critical spin and charge collective modes, which are coupled to charge carriers nea…

cond-mat.supr-con2002★ 10 cited

Comment on: Nonmonotonic $d_{x^{2} - y^{2}}$ Superconducting Order Parameter in Nd $_{2 - x}$ Ce $_{x}$ CuO $_{4}$

F. Venturini, R. Hackl, U. Michelucci

In a recent letter Blumberg and collaborators claim that a non-monotonic $d_{x^{2} - y^{2}}$ form for the superconducting order parameter is required to explain their Raman scattering me…

cond-mat.supr-con2001★ 41 cited

Doping dependence of the electronic Raman spectra in cuprates

F. Venturini, M. Opel, R. Hackl +3

We report electronic Raman scattering measurements on Bi $_{2}$ Sr $_{2}$ (Y $_{1 - x}$ Ca $_{x}$ )Cu $_{2}$ O $_{8 + δ}$ single crystals at different doping levels. The dependence of the spectra on dopi…

Chiral electronic excitations and strong electron-phonon coupling to Weyl fermions in the Kagome semimetal Co3​Sn2​S2​

Evolution of lattice, spin, and charge properties across the phase diagram of FeSe1−x​Sx​