EXOELECTRON EMISSION AT CS SURFACES BY ACCELERATED O(2) MOLECULES

被引：23

作者：

BOTTCHER, A

MORGANTE, A

GIESSEL, T

GREBER, T

ERTL, G

机构：

[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-14195 Berlin

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 231卷 / 01期

关键词：

D O I：

10.1016/0009-2614(94)01213-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The exoemission in the reaction of O-2 with Cs surfaces is found to depend strongly on the translational energy of the impinging O-2 molecules. Seeded beam experiments show that in the initial oxidation state exoemission increases with increasing O-2 velocity. Above 0.5 eV of kinetic energy the increase is found to be proportional to exp(-v*/v) with a value v* of 1.6 x 10(4) m/s.

引用

收藏

页码：119 / 122

页数：4

相关论文

共 17 条

[1] EXPERIMENTAL AND THEORETICAL APPROACHES TO THE IONIZATION PROCESS IN SECONDARY-ION EMISSION [J].

BLAISE, G ;

NOURTIER, A .

SURFACE SCIENCE, 1979, 90 (02) :495-547

[2]

BOTTCHER A, 1991, J CHEM PHYS, V95, P3756, DOI 10.1063/1.460826

[3] NONADIABATIC SURFACE-REACTION - MECHANISM OF ELECTRON-EMISSION IN THE CS+O-2 SYSTEM [J].

BOTTCHER, A ;

IMBECK, R ;

MORGANTE, A ;

ERTL, G .

PHYSICAL REVIEW LETTERS, 1990, 65 (16) :2035-2037

[4] NEGATIVE PARTICLE-EMISSION FROM A CS/RU(0001) SURFACE DURING EXPOSURE TO NO AND NO2 [J].

BOTTCHER, A ;

GROBECKER, R ;

GREBER, T ;

ERTL, G .

CHEMICAL PHYSICS LETTERS, 1993, 208 (5-6) :404-408

[5] THEORY OF ELECTRONIC PROCESSES IN ATOM SCATTERING FROM SURFACES [J].

BRAKO, R ;

NEWNS, DM .

REPORTS ON PROGRESS IN PHYSICS, 1989, 52 (06) :655-697

[6] NONADIABATIC PROCESSES DURING THE OXIDATION OF LI LAYERS [J].

GREBER, T ;

FREIHUBE, K ;

GROBECKER, R ;

BOTTCHER, A ;

HERMANN, K ;

ERTL, G ;

FICK, D .

PHYSICAL REVIEW B, 1994, 50 (12) :8755-8762

[7] CHEMICAL HOLE DIVING [J].

GREBER, T .

CHEMICAL PHYSICS LETTERS, 1994, 222 (03) :292-296

[8] O- ESCAPE DURING THE OXIDATION OF CESIUM [J].

GREBER, T ;

GROBECKER, R ;

MORGANTE, A ;

BOTTCHER, A ;

ERTL, G .

PHYSICAL REVIEW LETTERS, 1993, 70 (09) :1331-1334

[9] EMISSION OF EXOELECTRONS DURING OXIDATION OF CS VIA THERMAL-ACTIVATION OF A METASTABLE O2- SURFACE SPECIES [J].

GROBECKER, R ;

SHI, H ;

BLUDAU, H ;

HERTEL, T ;

GREBER, T ;

BOTTCHER, A ;

JACOBI, K ;

ERTL, G .

PHYSICAL REVIEW LETTERS, 1994, 72 (04) :578-581

[10] DYNAMICS OF THE INTERACTION OF O(2) WITH LI SURFACES [J].

HERMANN, K ;

FREIHUBE, K ;

GREBER, T ;

BOTTCHER, A ;

GROBECKER, R ;

FICK, D ;

ERTL, G .

SURFACE SCIENCE, 1994, 313 (1-2) :L806-L810