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

被引：92

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

[1]

BELLISENTFUNEL MC, 1987, J CHEM PHYS, V687, P2231

[2] ABSORPTIVITY OF ICE I IN RANGE 4000-30 CM-1 [J].

BERTIE, JE ;

LABBE, HJ ;

WHALLY, E .

JOURNAL OF CHEMICAL PHYSICS, 1969, 50 (10) :4501-&

[3] OPTICAL SPECTRA OF ORIENTATIONALLY DISORDERED CRYSTALS .2. INFRARED SPECTRUM OF ICE IH AND ICE IC FROM 360 TO 50 CM-1 [J].

BERTIE, JE ;

WHALLEY, E .

JOURNAL OF CHEMICAL PHYSICS, 1967, 46 (04) :1271-&

[4]

BERTIE JE, 1975, J CHEM PHYS, V67, P2445

[5] STRUCTURE OF HIGH-DENSITY AMORPHOUS WATER .1. X-RAY-DIFFRACTION STUDY [J].

BIZID, A ;

BOSIO, L ;

DEFRAIN, A ;

OUMEZZINE, M .

JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (04) :2225-2230

[6]

BOUTIN H, 1968, MOL SPECTROSCOPY NEU

[7] WARMEAUSDEHNUNG VON H2O- UND D2O-EINKRISTALLEN [J].

DANTL, G .

ZEITSCHRIFT FUR PHYSIK, 1962, 166 (01) :115-+

[8]

Dantl G., 1969, PHYS ICE P INT S PHY, P223

[9] NATURE OF THE TRANSFORMATIONS OF ICE-I AND LOW-DENSITY AMORPHOUS ICE TO HIGH-DENSITY AMORPHOUS ICE [J].

FLORIANO, MA ;

HANDA, YP ;

KLUG, DD ;

WHALLEY, E .

JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (11) :7187-7192

[10] STRUCTURE OF HIGH-DENSITY AMORPHOUS ICE BY NEUTRON-DIFFRACTION [J].

FLORIANO, MA ;

WHALLEY, E ;

SVENSSON, EC ;

SEARS, VF .

PHYSICAL REVIEW LETTERS, 1986, 57 (24) :3062-3064

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