DENSITIES OF VIBRATIONAL-STATES AND HEAT-CAPACITIES OF CRYSTALLINE AND AMORPHOUS H2O ICE DETERMINED BY NEUTRON-SCATTERING

被引：91

作者：

KLUG, DD ^{[1
]}

WHALLEY, E ^{[1
]}

SVENSSON, EC ^{[1
]}

ROOT, JH ^{[1
]}

SEARS, VF ^{[1
]}

机构：

[1] ATOM ENERGY CANADA LTD,CHALK RIVER NUCL LABS,CHALK RIVER K0J 1J0,ONTARIO,CANADA

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.44.841

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The densities of vibrational states g (nu) of crystalline ice Ih and Ic, and of low-density and high-density amorphous ice, all at 15 K, have been determined by incoherent inelastic neutron scattering. The use of a self-consistent iterative procedure to correct for multiphonon and multiple scattering leads to highly accurate values. The mean absolute difference for T < 80 K between the heat capacity of ice Ih calculated from our g(nu) and that measured calorimetrically is 1.8%. The anharmonic component of the heat capacity at higher T is about twice as large as an earlier theoretical estimate.

引用

页码：841 / 844

页数：4

共 27 条

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