Structural transitions in sodium chloride nanocrystals

被引：73

作者：

Hudgins, RR

Dugourd, P

Tenenbaum, JM

Jarrold, MF

机构：

[1] CNRS,UMR 5579,SPECTROMETRIE ION & MOL LAB,F-69622 VILLEURBANNE,FRANCE

[2] UNIV LYON 1,F-69622 VILLEURBANNE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.78.4213

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High resolution ion mobility measurements have been used to examine structural transitions in (NaCl)(n)Cl- nanocrystals with between 30 and 40 NaCl units. Transformations between bulk fragment geometries with different j x k x l dimensions are observed at ambient temperatures. In some of these transformations, close to half the atoms are relocated, yet the Arrhenius activation energies are less than 0.6 eV. A surface diffusion mechanism is proposed to explain the remarkably low activation energies.

引用

收藏

页码：4213 / 4216

页数：4

相关论文

共 38 条

[11] Spontaneous thermal isomerization in isolated alkali-halide clusters [J].

Fatemi, DJ ;

Fatemi, FK ;

Bloomfield, LA .

PHYSICAL REVIEW A, 1996, 54 (04) :3674-3677

[12] SURFACE SELF-DIFFUSION OF ATOMS AND ATOM PARIS [J].

GRAHAM, WR ;

EHRLICH, G .

PHYSICAL REVIEW LETTERS, 1973, 31 (23) :1407-1408

[13] CHARACTERIZATION OF ISOMERIC COMPOUNDS BY GAS AND PLASMA CHROMATOGRAPHY [J].

HAGEN, DF .

ANALYTICAL CHEMISTRY, 1979, 51 (07) :870-874

[14] TIME-RESOLVED DYNAMICS OF CLUSTER ISOMERIZATION [J].

HEIDENREICH, A ;

JORTNER, J ;

OREF, I .

JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (01) :197-210

[15] ELECTRON-BINDING AND STABILITY OF EXCESS-ELECTRON ALKALI-HALIDE CLUSTERS - LOCALIZATION AND SURFACE-STATES [J].

HONEA, EC ;

HOMER, ML ;

WHETTEN, RL .

PHYSICAL REVIEW B, 1993, 47 (12) :7480-7493

[16] LOCALIZATION OF AN EXCESS ELECTRON IN SODIUM-HALIDE CLUSTERS [J].

HONEA, EC ;

HOMER, ML ;

LABASTIE, P ;

WHETTEN, RL .

PHYSICAL REVIEW LETTERS, 1989, 63 (04) :394-397

[17] STRUCTURAL TRANSITIONS IN SIZE-SELECTED GERMANIUM CLUSTER IONS [J].

HUNTER, JM ;

FYE, JL ;

JARROLD, MF ;

BOWER, JE .

PHYSICAL REVIEW LETTERS, 1994, 73 (15) :2063-2066

[18] SURFACE-DIFFUSION [J].

KAPOOR, A ;

YANG, RT ;

WONG, C .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1989, 31 (1-2) :129-214

[19]

KARPAS Z, 1986, INT J MASS SPECTROM, V83, P163

[20] ELECTRONIC ABSORPTION-SPECTRA OF LARGE BENZENE - ARN CLUSTERS [J].

KNOCHENMUSS, R ;

RAY, D ;

HESS, WP .

JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (01) :44-51

← 1 2 3 4 →