41 citations · 127 across the 13 of their papers we have counts for
13 papers
Raman scattering in cuprate oxychlorides high-temperature superconductors single-crystals
Chafic Fawaz, Yingzheng Gao, Luca Laveder +13
We investigate the Raman response of sodium-doped cuprate oxychloride NaCaCuOCl high-temperature superconductors across their entire phase diagram, from the…
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 $T_{1} \approx 1…
Van der Waals CrSBr alloys with tunable magnetic and optical properties
Shalini Badola, Amit Pawbake, Bing Wu +4
Van der Waals magnets are attracting a lot of attention for their potential integration in spintronic and magnonic technologies. CrSBr is an A-type antiferromagnet that shows a cou…
Hybridization of lattice and charge order excitations in a superconducting cuprate
S. M. Souliou, D. Ishikawa, R. Heid +9
The ubiquitous tendency of superconducting cuprates to form charge density waves (CDWs) has reignited interest in the nature of their electron-phonon interaction and its role in sh…
Anomalous phonon Grüneisen parameters in semiconductor TaNiS
Mai Ye, Tom Lacmann, Mehdi Frachet +7
Strain tuning is a powerful experimental method in probing correlated electron systems. Here we study the strain response of the lattice dynamics and electronic structure in semico…
Colossal c-axis response and lack of rotational symmetry breaking within the kagome plane of the CsVSb superconductor
Mehdi Frachet, Liran Wang, Wei Xia +8
The kagome materials AV4Sb (A = K, Rb, Cs) host an intriguing interplay between unconventional superconductivity and charge-density-waves. Here, we investigate CsVSb$_5…
Identification of multiple-flux-quanta vortices by core states in the two-band superconductor Pb
Thomas Gozlinski, Qili Li, Rolf Heid +5
Superconductors are of type I or II depending on whether they form an Abrikosov vortex lattice. Although bulk lead (Pb) is classified as a prototypical type-I superconductor, we ob…
Precursor phase with full phonon softening above the charge-density-wave phase transition in -TaSe
Xingchen Shen, Rolf Heid, Roland Hott +8
Research on charge-density-wave (CDW) ordered transition-metal dichalcogenides continues to unravel new states of quantum matter correlated to the intertwined lattice and electroni…
Density deficit of the Earth's core revealed by a multi-megabar primary pressure scale
Daijo Ikuta, Eiji Ohtani, Hiroshi Fukui +4
An accurate pressure scale is a fundamental requirement to understand planetary interiors. Here, we establish a primary pressure scale extending to the multi-megabar pressures of t…
Raman scattering study of lattice and magnetic excitations in CrAs
K. Sen, Y. Yao, R. Heid +6
We report on the lattice and spin dynamics in the monopnictide CrAs using polarized Raman scattering. This system exhibits a first-order magneto-structural phase transition at T_N~…
Uniaxial strain-induced Kohn anomaly and electron-phonon coupling in acoustic phonons of graphene
M. E. Cifuentes-Quintal, O. de la Peña-Seaman, R. Heid +2
Recent advances in strain engineering at the nanoscale have shown the feasibility to modulate the properties of graphene. Although the electron-phonon (e-ph) coupling and Kohn anom…
Spin-orbit driven Peierls transition and possible exotic superconductivity in CsWO
S. V. Streltsov, I. I. Mazin, R. Heid +1
We study \textit{ab initio} a pyrochlore compound, CsWO, which exhibits a yet unexplained metal-insulator transition. We find that (1) the reported low- structure is…
Highly anisotropic anomaly in the dispersion of the copper-oxygen bond-bending phonon in superconducting YBa2Cu3O7 from inelastic neutron scattering
M. Raichle, D. Reznik, D. Lamago +8
Motivated by predictions of a substantial contribution of the "buckling" vibration of the CuO2 layers to d-wave superconductivity in the cuprates, we have performed an inelastic ne…