Raman scattering and electron-phonon coupling in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Rb</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="italic">x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>60</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
Michael G. MitchDepartment of Physics, Penn State University, University Park, Pennsylvania 16802S. J. ChaseDepartment of Physics, Penn State University, University Park, Pennsylvania 16802J. S. LanninDepartment of Physics, Penn State University, University Park, Pennsylvania 16802
1992lv
ABI
Аннотация
In situ, interference-enhanced Raman scattering of ultrathin, solid solution films of ${\mathrm{Rb}}_{\mathit{x}}$${\mathrm{C}}_{60}$ (0\ensuremath{\le}x\ensuremath{\le}3) prepared in UHV are reported. Variations of phonon linewidths of both selected low-frequency, radial and high-frequency, tangential intramolecular modes indicate strong electron-phonon coupling. The results directly support a recent theory for phonon-mediated superconductivity in alkali-${\mathrm{C}}_{60}$ systems.
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