TIME-OF-FLIGHT INELASTIC NEUTRON-SCATTERING STUDY OF LIQUID-HE-4 IN SILICA AEROGELS

被引：21

作者：

CODDENS, G ^{[1
]}

DEKINDER, J ^{[1
]}

MILLET, R ^{[1
]}

机构：

[1] UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 WILRIJK,BELGIUM

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 188卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(95)00022-4

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Neutron scattering results on the elementary excitations of superfluid He-4 in two different silica aerogels are compared. One was obtained by base-catalysed reaction with a pore volume of 93.2%, a density of 0.150 g/cm(3) and a Hausdorff dimension, D = 1.8, and the other was obtained in a neutral reaction with a pore volume of 96.5%, a density of 0.080 g/cm(3) and a Hausdorff dimension, D = 2.4. Results in both samples are remarkably identical to each other and to the behaviour in bulk He-4.

引用

页码：41 / 45

页数：5

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