activity
20192025
most citedMeasuring phonon dispersion at an interface

148 citations · 463 across the 16 of their papers we have counts for

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Showing 2022Show all

5 papers · 1 filter

cond-mat.mtrl-sci2022

Atomically localized ingredient-dependent interface phonon in heterogeneous solids

Mei Wu, Ruochen Shi, Ruishi Qi +12

Phonons are the primary heat carriers in non-metallic solids. In compositionally heterogeneous materials, the thermal properties are believed to be mainly governed by the disrupted…

cond-mat.mtrl-sci2022★ 25 cited

Phonon transition across an isotopic interface

Ning Li, Ruochen Shi, Yifei Li +13

Natural materials usually consist of isotopic mixtures, for which different isotopic ratios can lead to distinct material properties such as thermal conductivity and nucleation pro…

cond-mat.mes-hall2022★ 30 cited

Charge transfer dynamics in MoSe/hBN/WSe heterostructures

Yoseob Yoon, Zuocheng Zhang, Ruishi Qi +6

Ultrafast charge transfer processes provide a facile way to create interlayer excitons in directly contacted transition metal dichalcogenide (TMD) layers. More sophisticated hetero…

cond-mat.mtrl-sci2022★ 3 cited

Single-dislocation phonons: atomic-scale measurement and their thermal properties

Yuehui Li, Bo Han, Xiaolong Yang +12

Nanoscale defects such as dislocations, have a significant impact on the phonon thermal transport properties in non-metallic materials. To unravel these effects, understanding of d…

cond-mat.mtrl-sci2022

Direct observation of local antiferroelectricity induced phonon softening at a SrTiO3 defect

Bo Han, Ruochen Shi, Huining Peng +7

Defects in oxides usually exhibit exotic properties that may be associated with the local lattice dynamics. Here, at atomic spatial resolution, we directly measure phonon modes of…