Neutron Scattering Study of Elementary Excitations in Liquid Helium-3
作者： K. Sköld , C. A. Pelizzari , R. Kleb , G. E. Ostrowski
DOI: 10.1103/PHYSREVLETT.37.842
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摘要: The neutron inelastic scattering function of liquid helium-3 at 0.015 K has been measured for wave vectors in the range $0.8{\AA{}}^{\ensuremath{-}1}l~ql~2.2{\AA{}}^{\ensuremath{-}1}$. For $ql1.4$ ${\mathrm{\AA{}}}^{\ensuremath{-}1}$, contains two peaks. peak lower energy is due to spin-fluctuation particle-hole region while higher identified be zero sound mode. By comparing structure factor with x-ray factor, spin-dependent cross section and corresponding are determined.
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