3He-4He mixtures in 95% porous aerogel

被引：7

作者：

Yoon, J ^{[1
]}

Mulders, N ^{[1
]}

Chan, MHW ^{[1
]}

机构：

[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1998年 / 110卷 / 1-2期

关键词：

D O I：

10.1023/A:1022575303949

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Torsional oscillator measurements of He-3-He-4 mixtures in 95% porous aerogel found a phase diagram similar to that in 98% porous aerogel. The coexistence boundary on the He-3 rich side resides very close to, but nevertherless is detached from the superfluid transition line. Together with the findings in 98%, 87%, and 99.5% porous aerogel, this result supports the interpretation that the phase separation of He-3-He-4 mixture in aerogel is induced by the capillary condensation of He-4 films from neighboring silica strands into He-4 rich domains.

引用

页码：585 / 590

页数：6

共 14 条

[1] KOSTERLITZ-THOULESS TRANSITION IN HELIUM FILMS [J].

AGNOLET, G ;

MCQUEENEY, DF ;

REPPY, JD .

PHYSICAL REVIEW B, 1989, 39 (13) :8934-8958

[2] PATH-INTEGRAL MONTE-CARLO SIMULATION OF ISOTOPIC LIQUID-HELIUM MIXTURES [J].

BONINSEGNI, M ;

CEPERLEY, DM .

PHYSICAL REVIEW LETTERS, 1995, 74 (12) :2288-2291

[3] Helium in aerogel [J].

Chan, M ;

Mulders, N ;

Reppy, J .

PHYSICS TODAY, 1996, 49 (08) :30-37

[4] SUPERFLUIDITY IN A DILUTE BOSE-GAS [J].

CROOKER, BC ;

HEBRAL, B ;

SMITH, EN ;

TAKANO, Y ;

REPPY, JD .

PHYSICAL REVIEW LETTERS, 1983, 51 (08) :666-669

[5] CRITICAL-BEHAVIOR OF SUPERFLUID HE-4 FILMS ADSORBED IN AEROGEL GLASS [J].

CROWELL, PA ;

REPPY, JD ;

MUKHERJEE, S ;

MA, J ;

CHAU, MHW ;

SCHAEFER, DW .

PHYSICAL REVIEW B, 1995, 51 (18) :12721-12736

[6] CORRELATED RANDOM-CHEMICAL-POTENTIAL MODEL FOR THE PHASE-TRANSITIONS OF HELIUM MIXTURES IN POROUS-MEDIA [J].

FALICOV, A ;

BERKER, AN .

PHYSICAL REVIEW LETTERS, 1995, 74 (03) :426-429

[7] SHARP HEAT-CAPACITY SIGNATURE AT THE SUPERFLUID TRANSITION OF HELIUM FILMS IN POROUS GLASSES [J].

FINOTELLO, D ;

GILLIS, KA ;

WONG, A ;

CHAN, MHW .

PHYSICAL REVIEW LETTERS, 1988, 61 (17) :1954-1957

[8] PHASE-DIAGRAM OF HE-3-HE-4 MIXTURE IN AEROGEL [J].

KIM, SB ;

MA, J ;

CHAN, MHW .

PHYSICAL REVIEW LETTERS, 1993, 71 (14) :2268-2271

[9] RANDOM-ANISOTROPY BLUME-EMERY-GRIFFITHS MODEL [J].

MARITAN, A ;

CIEPLAK, M ;

SWIFT, MR ;

TOIGO, F ;

BANAVAR, JR .

PHYSICAL REVIEW LETTERS, 1992, 69 (02) :221-224

[10] HEAT-CAPACITY MEASUREMENTS OF HE-3-HE-4 MIXTURES IN AEROGEL [J].

MULDERS, N ;

CHAN, MHW .

PHYSICAL REVIEW LETTERS, 1995, 75 (20) :3705-3708

← 1 2 →