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Inelastic x-ray scattering studies of phonon dispersions in superconductors at high pressures
Superconductor Science and Technology ( IF 3.7 ) Pub Date : 2020-10-30 , DOI: 10.1088/1361-6668/abbdc3
S M Souliou 1 , A Bosak 2 , G Garbarino 2 , M Le Tacon 1
Affiliation  

Electron-phonon interaction is of central importance for the electrical and heat transport properties of metals, and is directly responsible for charge-density-waves or (conventional) superconducting instabilities. The direct observation of phonon dispersion anomalies across electronic phase transitions can provide insightful information regarding the mechanisms underlying their formation. Here, we review the current status of phonon dispersion studies in superconductors under hydrostatic and uniaxial pressure. Advances in the instrumentation of high resolution inelastic X-ray scattering beamlines and pressure generating devices allow these measurements to be performed routinely at synchrotron beamlines worldwide.

中文翻译:

高压下超导体中声子色散的非弹性 X 射线散射研究

电子-声子相互作用对于金属的电和热传输特性至关重要,并且直接导致电荷密度波或(常规)超导不稳定性。通过电子相变直接观察声子色散异常可以提供有关其形成机制的深入信息。在这里,我们回顾了在静水压力和单轴压力下超导体中声子色散研究的现状。高分辨率非弹性 X 射线散射光束线和压力产生设备仪器的进步使这些测量能够在全球同步加速器光束线中常规进行。
更新日期:2020-10-30
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