QUANTUM-THEORY OF SOLID-LIQUID COEXISTENCE AND INTERFACE IN HE-4

被引：45

作者：

PEDERIVA, F ^{[1
]}

FERRANTE, A ^{[1
]}

FANTONI, S ^{[1
]}

REATTO, L ^{[1
]}

机构：

[1] UNIV MILAN,DIPARTIMENTO FIS,I-20122 MILAN,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.72.2589

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a variational Monte Carlo simulation of solid-liquid coexistence and interface in He-4 at T = 0 K. We employ a new, generalized form of the shadow wave function in which intershadow correlations are made explicitly dependent on a local density operator. This form allows for a unique representation of the ground state for the whole range of density extending over the two phases. In the phase transition region the stable state consists of a slab of crystal coexisting with the fluid. We obtain the local density, the order parameter, and the interfacial energy for the {100} surface of an fcc crystal.

引用

页码：2589 / 2592

页数：4

共 19 条

[1]

ANDREEV AF, 1991, EXCITATIONS 2 DIMENS, P397

[2] GROWTH-KINETICS OF VICINAL SURFACES OF HE-4 CRYSTALS [J].