Structure and energetics of mixed He-4-He-3 drops

被引:281
作者
Barranco, M
Pi, M
Gatica, SM
Hernandez, ES
Navarro, J
机构
[1] UNIV BUENOS AIRES, FAC CIENCIAS EXACTAS & NAT, DEPT FIS, RA-1428 BUENOS AIRES, DF, ARGENTINA
[2] UNIV VALENCIA, FAC FIS, CSIC, IFIC, CTR MIXTO, E-46100 BURJASSOT, SPAIN
关键词
D O I
10.1103/PhysRevB.56.8997
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using a finite-range density functional, we have investigated the energetics and structural features of mixed helium clusters. The possibility of doping the cluster with a molecule of sulfur hexafluoride is also considered. It is seen that the repulsion introduced by the impurity strongly modifies the properties of the smallest drops. Although only a qualitative comparison is possible, the gross features displayed by our calculations are in agreement with recent experimental findings.
引用
收藏
页码:8997 / 9003
页数:7
相关论文
共 32 条
[1]  
BALFOUR LS, 1978, THESIS HAIFA
[2]   Structure and stability of He-3 droplets [J].
Barranco, M ;
Navarro, J ;
Poves, A .
PHYSICAL REVIEW LETTERS, 1997, 78 (25) :4729-4732
[3]   A DENSITY-FUNCTIONAL FOR LIQUID-HE-3 [J].
BARRANCO, M ;
JEZEK, DM ;
HERNANDEZ, ES ;
NAVARRO, J ;
SERRA, LL .
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1993, 28 (03) :257-268
[4]   VARIATIONAL CALCULATIONS FOR HE-3 IMPURITIES ON HE-4 DROPLETS [J].
BELIC, A ;
DALFOVO, F ;
FANTONI, S ;
STRINGARI, S .
PHYSICAL REVIEW B, 1994, 49 (21) :15253-15257
[5]   DENSITY-FUNCTIONAL CALCULATIONS FOR HE-4 DROPLETS [J].
CASAS, M ;
DALFOVO, F ;
LASTRI, A ;
SERRA, L ;
STRINGARI, S .
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1995, 35 (01) :67-75
[6]   SYSTEMATICS OF PURE AND DOPED HE-4 CLUSTERS [J].
CHIN, SA ;
KROTSCHECK, E .
PHYSICAL REVIEW B, 1995, 52 (14) :10405-10428
[7]  
CHOCOLATS HC, 1984, LOW TEMPERATURE PHYS
[8]   STRUCTURAL AND DYNAMICAL PROPERTIES OF SUPERFLUID-HELIUM - A DENSITY-FUNCTIONAL APPROACH [J].
DALFOVO, F ;
LASTRI, A ;
PRICAUPENKO, L ;
STRINGARI, S ;
TREINER, J .
PHYSICAL REVIEW B, 1995, 52 (02) :1193-1209
[9]   ATOMIC AND MOLECULAR IMPURITIES IN HE-4 CLUSTERS [J].
DALFOVO, F .
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1994, 29 (01) :61-66
[10]   HE-3 IMPURITIES ON HE-4 CLUSTERS [J].
DALFOVO, F .
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1989, 14 (03) :263-270