STRUCTURE OF ALKALI DIMERS AT THE SURFACE OF LIQUID-HELIUM

被引：7

作者：

ANCILOTTO, F

COLE, MW

DETOFFOL, G

LERNER, PB

TOIGO, F

机构：

[1] PENN STATE UNIV,DEPT PHYS,UNIVERSITY PK,PA 16802

[2] UNIV PADUA,DIPARTIMENTO FIS G GALILEI,INFM,I-35131 PADUA,ITALY

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1995年 / 101卷 / 3-4期

关键词：

D O I：

10.1007/BF00753315

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Calculations are presented of the equilibrium configuration (''dimple'') of a Na-2 or Li-2 molecule absorbed on the surface of liquid He-3 or liquid He-4. The computed dimer binding energies are somewhat greater than those of the monomers. The lowest energy occurs when the molecule lies flat, but the energy in the erect orientation is only similar to 1 K higher (implying relatively free rotation). The center of mass lies similar to 4 Angstrom above the liquid surface and the dimple has a depth similar to 3 Angstrom. An exceptional case is Li-2 on liquid He-3, for which the surface state is unstable relative to solvation in the bulk.

引用

页码：325 / 330

页数：6

共 13 条

[1]

ANCILOTTO F, IN PRESS Z PHYS D

[2]

CLINE RW, 1981, PHYS REV LETT, V47, P119

[3] ATOMIC AND MOLECULAR IMPURITIES IN HE-4 CLUSTERS [J].