STUDY OF ELEMENTARY EXCITATIONS OF SUPERFLUID HE-4 IN SILICA AEROGELS

被引：24

作者：

DEKINDER, J ^{[1
]}

CODDENS, G ^{[1
]}

MILLET, R ^{[1
]}

机构：

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

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1994年 / 95卷 / 04期

关键词：

D O I：

10.1007/BF01313361

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the elementary excitations of superfluid He-4 in a silica aerogel at 1.8 K and various filling fractions. The results do not show any departure from bulk He-4 behaviour, suggesting that previously observed anomalies in heat capacity and superfluid fraction data could be the effect of a distribution of He I and He II liquids inside pores of different sizes.

引用

页码：511 / 514

页数：4

共 26 条

[1] PRECISION DETERMINATION OF S(Q, OMEGA) OF LIQUID-HE-4 AS A FUNCTION OF TEMPERATURE [J].

ANDERSEN, KH ;

STIRLING, WG ;

SCHERM, R ;

STUNAULT, A ;

FAK, B ;

GODFRIN, H ;

DIANOUX, AJ .

PHYSICA B, 1992, 180 :851-853

[2] FLOW OF LIQUID HELIUM THROUGH POROUS VYCOR GLASS [J].

ATKINS, KR ;

SEKI, H .

PHYSICAL REVIEW, 1956, 102 (02) :582-583

[3] SUPERFLUID TRANSITION OF HE-4 FILMS ADSORBED ON POROUS VYCOR GLASS [J].

BERTHOLD, JE ;

BISHOP, DJ ;

REPPY, JD .

PHYSICAL REVIEW LETTERS, 1977, 39 (06) :348-352

[4] SUPERFLUID DENSITY OF THIN HE-4 FILMS ADSORBED IN POROUS VYCOR GLASS [J].

BISHOP, DJ ;

BERTHOLD, JE ;

PARPIA, JM ;

REPPY, JD .

PHYSICAL REVIEW B, 1981, 24 (09) :5047-5057

[5]

Brewer D. F., 1970, Journal of Low Temperature Physics, V3, P205, DOI 10.1007/BF00628144

[6] DISORDER AND THE SUPERFLUID TRANSITION IN LIQUID-HE-4 [J].

CHAN, MHW ;

BLUM, KI ;

MURPHY, SQ ;

WONG, GKS ;

REPPY, JD .

PHYSICAL REVIEW LETTERS, 1988, 61 (17) :1950-1953

[7] ADSORPTION OF KR, XE, AND AR ON HIGHLY UNIFORM MGO SMOKE [J].

COULOMB, JP ;

SULLIVAN, TS ;

VILCHES, OE .

PHYSICAL REVIEW B, 1984, 30 (08) :4753-4760

[8] SUPERFLUID TRANSITION OF HE-4 IN FRACTAL MEDIA [J].

DOSSANTOS, RR ;

BRANCO, NS ;

DEQUEIROZ, SLA .

EUROPHYSICS LETTERS, 1990, 13 (07) :647-652

[9] ZERO SOUND AND ATOMIC-LIKE EXCITATIONS - THE NATURE OF PHONONS AND ROTONS IN LIQUID-HE-4 [J].

GLYDE, HR ;

GRIFFIN, A .

PHYSICAL REVIEW LETTERS, 1990, 65 (12) :1454-1457

[10]

HASMY A, 1988, IN PRESS J NONCRYST, V106, P161

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