SHORT-WAVELENGTH COLLECTIVE EXCITATIONS IN LIQUID RUBIDIUM OBSERVED BY COHERENT NEUTRON-SCATTERING
SHORT-WAVELENGTH COLLECTIVE EXCITATIONS IN LIQUID RUBIDIUM OBSERVED BY COHERENT NEUTRON-SCATTERING
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DOI：
10.1103/physrevlett.32.49
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发表时间：
1974-01-01
影响因子：
8.6
通讯作者：
ROWE, JM
中科院分区：
文献类型：
--
作者：
COPLEY, JRD;ROWE, JM
用中子相干散射方法研究了320K下液体铷中的短波长集体激发。对于κ= 2 π λ直到1.0 π − 1的值，从散射函数S（κ，ω）的形状中可以清楚地发现传播模的存在。这一结果表明，此类模式的存在不取决于量子效应或模式的低热布居。
The short-wavelength collective excitations in liquid rubidium at 320 K have been studied by coherent neutron scattering. For values of κ= 2 π λ up to 1.0 Å− 1, clear evidence of propagating modes was found from the shape of the scattering function S (κ, ω) at constant values of κ. This result shows that the existence of such modes does not depend upon either quantum effects or low thermal population of the modes.