Spectrum of collective transverse excitations in liquid cesium near the melting point
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چکیده
منابع مشابه
Transverse acoustic phonons in germanium near the melting point
2014 The transverse acoustic phonon dispersion in germanium has been studied along [111] and [100] up to 935 °C, only 2 degrees below the melting point Tm. No evidence of softening is found, neither near the Brillouin Zone boundary, nor uniformly throughout the BZ. The phonon energies decrease slowly and linearly with increasing T from 100 K to Tm. This suggests that the free electron density a...
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Taras Bryk1,2 and A. B. Belonoshko3 1Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Street, UA-79011 Lviv, Ukraine 2Institute of Applied Mathematics and Fundamental Sciences, National Technical University of Lviv, UA-79013 Lviv, Ukraine 3Condensed Matter Theory, Department of Theoretical Physics, KTH Royal Institute of Technology, SE-10691...
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The transverse acoustic excitation modes were detected by inelastic x-ray scattering in liquid Ga in the Q range above 9 nm(-1) although liquid Ga is mostly described by a hard-sphere liquid. An ab initio molecular dynamics simulation clearly supports this finding. From the detailed analysis for the S(Q,omega) spectra with a good statistic quality, the lifetime of 0.5 ps and the propagating len...
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ژورنال
عنوان ژورنال: Journal of Physical Studies
سال: 1998
ISSN: 1027-4642,2310-0052
DOI: 10.30970/jps.02.322