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The composition dependence of boson peaks has been studied by inelastic neutron scattering and Raman scattering in lithium borate glasses xLi 2 O–(1−x)B 2 O 3 , where x is the mole fraction of Li 2 O. The peak energy markedly increases with the increase of x, and shows the clear correlation with the shear modulus in the range x<0.28. The composition variation of...
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