310 citations · 1.1k across the 27 of their papers we have counts for
9 papers · 1 filter
Observation of van der Waals phonons in the single-layer cuprate (Bi,Pb)(Sr,La)CuO
Y. Y. Peng, I. Boukahil, K. Krongchon +14
Interlayer van der Waals (vdW) coupling is generic in two-dimensional materials such as graphene and transition metal dichalcogenides, which can induce very low-energy phonon modes…
Short-range nematic fluctuations in Sr1-xNaxFe2As2 superconductors
Shan Wu, Yu Song, Yu He +10
Interactions between nematic fluctuations, magnetic order and superconductivity are central to the physics of iron-based superconductors. Here we report on in-plane transverse acou…
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…
Phonon softening near structural transition in BaFe2As2 observed by inelastic x-ray scattering
Jennifer L. Niedziela, D. Parshall, K. A. Lokshin +3
In this work we present the results of an inelastic x-ray scattering experiment detailing the behavior of the transverse acoustic [110] phonon in BaFe2As2 as a function of temperat…
Comparative study of the phonons in non-superconducting BaC6 and superconducting CaC6 using inelastic x-ray scattering
A. C. Walters, C. A. Howard, M. H. Upton +8
The low energy phonons of two different graphite intercalation compounds (GICs) have been measured as a function of temperature using inelastic x-ray scattering (IXS). In the case…
Phonons as a probe of the magnetic state in doped and undoped BaFe2As2
D. Reznik, K. Lokshin, D. C. Mitchell +17
We measured phonon frequencies and linewidths in doped and undoped BaFe2As2 single crystals by inelastic x-ray scattering and compared our results with density functional theory (D…
Influence of Magnetism on Phonons in CaFe2As2 Via Inelastic X-ray Scattering
S. E. Hahn, Y. Lee, N. Ni +10
In the iron pnictides, the strong sensitivity of the iron magnetic moment to the arsenic position suggests a significant relationship between phonons and magnetism. We measured the…
C-axis Phonons in Fe-As Based Superconductors Investigated by Inelastic X-ray Scattering
D. Reznik, K. Lokshin, D. C. Mitchell +16
In Fe-As based superconductors magnetism and superconductivity show strong sensitivity to the lattice, suggesting a possibility of unconventional electron-phonon coupling. We inves…
Inelastic X-ray Scattering Study of Phonons in Superconducting CaC6
M. H. Upton, A. C. Walters, C. A. Howard +7
We investigate the dispersion and temperature dependence of a number of phonons in the recently discovered superconductor CaC6 utilizing inelastic x-ray scattering. Four [00L] and…