Frequency dependence of Raman-active pho
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Isaac F. Silvera; Piet J. Berkhout; L. M. Aernsbergen
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Article
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1979
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Springer US
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English
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A Raman scattering study of the phonon frequencies in disordered hcp solid hydrogen as a function of ortho-para concentration and temperature is presented. A crystal has been studied under isochroic conditions at a pressure of the order of 1000 bar to remove volume expansion effects present in previ