activity
20002026
most citedExtended Phonon Collapse and the Origin of the Charge-Density-Wave in NbSe

370 citations · 2k across the 42 of their papers we have counts for

collaborators

40 papers

cond-mat.str-el2026

Phonons reflect dynamic spin-state order in LaCoO

Alsu Ivashko, Taishun Manjo, Maximilian Kauth +17

We investigate lattice dynamics in LaCoO using inelastic neutron and x-ray scattering over $T = 2\mbox{-}650\,\mathrm{K}$, spanning the spin-state crossover at $T_{1} \approx 1…

cond-mat.mtrl-sci2022★ 15 cited

Anomalous transverse optic phonons in SnTe and PbTe -- revisited

Zehua Li, Shasha Li, John-Paul Castellan +5

We present a study of the soft transverse optic phonon mode in SnTe in comparison to the corresponding mode in PbTe using inelastic neutron scattering and ab-initio lattice dynamic…

cond-mat.supr-con2022★ 8 cited

Electron-momentum dependence of electron-phonon coupling underlies dramatic phonon renormalization in YNiBC

Philipp Kurzhals, Geoffroy Kremer, Thomas Jaouen +12

Electron-phonon coupling, i.e., the scattering of lattice vibrations by electrons and vice versa, is ubiquitous in solids and can lead to emergent ground states such as superconduc…

cond-mat.supr-con2020★ 21 cited

Nematic correlation length in iron-based superconductors probed by inelastic x-ray scattering

A. M. Merritt, F. Weber, J. -P. Castellan +7

Nematicity is ubiquitous in electronic phases of high- superconductors, particularly in the Fe-based systems. We used inelastic x-ray scattering to extract the temperature-dep…

cond-mat.supr-con2018★ 18 cited

Soft phonons reveal the nematic correlation length in Ba(FeCo)As

F. Weber, D. Parshall, L. Pintschovius +8

Nematicity is ubiquitous in electronic phases of high- superconductors, particularly in the Fe-based systems. While several experiments have probed nematic fluctuations, they…

cond-mat.str-el2018★ 5 cited

Polaronic correlations and phonon renormalization in La1-xSrxMnO3 (x = 0.2, 0.3)

M. Maschek, J. -P. Castellan, D. Lamago +2

According to standard theory the magnetoresistance magnitude in ferromagnetic manganites crucially depends on the electron-phonon coupling strength. We showed that in La0.7Sr0.3MnO…