ORIGIN OF THE PHOTON INDUCED CL+ YIELD FROM SI(111)7 X 7-CL AT THE CL AND SI K-EDGES

被引：25

作者：

PURDIE, D ^{[1
]}

MURYN, CA ^{[1
]}

PRAKASH, NS ^{[1
]}

WINCOTT, PL ^{[1
]}

THORNTON, G ^{[1
]}

LAW, DSL ^{[1
]}

机构：

[1] SERC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

来源：

SURFACE SCIENCE | 1991年 / 251卷

关键词：

STIMULATED ION DESORPTION; ELECTRON; SURFACES; MECHANISM; EXAFS;

D O I：

10.1016/0039-6028(91)91052-Y

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 yield of Cl+ ions from Si(111)7 x 7-Cl has been monitored through both the Cl and Si K-edges. The Cl K-edge ion yield EXAFS suggests a majority site origin, the data producing the same results as Auger yield SEXAFS: an atop geometry with a Cl-Si bond length of 2.00 +/- 0.02 angstrom. The Cl+-yield data recorded at the Si K-edge are identical to bulk Si EXAFS and the desorption mechanism at this edge is concluded to be X-ray induced electron stimulated desorption (XESD).

引用

页码：546 / 550

页数：5

共 21 条

[1] ATOMIC AND ELECTRONIC-STRUCTURES OF RECONSTRUCTED SI(100) SURFACES [J].

CHADI, DJ .

PHYSICAL REVIEW LETTERS, 1979, 43 (01) :43-47

[2] DIRECT STRUCTURAL STUDY OF CL ON SI[111] AND GE[111] SURFACES - NEW CONCLUSIONS [J].

CITRIN, PH ;

ROWE, JE ;

EISENBERGER, P .

PHYSICAL REVIEW B, 1983, 28 (04) :2299-2301

[3]

CITRIN PH, 1986, J PHYS-PARIS, V47, P8

[4] A RAPID, EXACT CURVED-WAVE THEORY FOR EXAFS CALCULATIONS [J].

GURMAN, SJ ;

BINSTED, N ;

ROSS, I .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (01) :143-151

[5] ION DESORPTION FROM SURFACES FOLLOWING PHOTON EXCITATION OF CORE ELECTRONS IN THE BULK [J].

JAEGER, R ;

STOHR, J ;

KENDELEWICZ, T .

PHYSICAL REVIEW B, 1983, 28 (02) :1145-1147

[6] X-RAY-INDUCED ELECTRON-STIMULATED DESORPTION VERSUS PHOTON STIMULATED DESORPTION - NH3 ON NI(110) [J].

JAEGER, R ;

STOHR, J ;

KENDELEWICZ, T .

SURFACE SCIENCE, 1983, 134 (02) :547-565

[7] SURFACE EXTENDED-X-RAY-ABSORPTION FINE-STRUCTURE BY MEANS OF PHOTON-STIMULATED ION DESORPTION - O ON MO(100) [J].

JAEGER, R ;

FELDHAUS, J ;

HAASE, J ;

STOHR, J ;

HUSSAIN, Z ;

MENZEL, D ;

NORMAN, D .

PHYSICAL REVIEW LETTERS, 1980, 45 (23) :1870-1873

[8] STIMULATED DESORPTION [J].

KNOTEK, ML .

REPORTS ON PROGRESS IN PHYSICS, 1984, 47 (11) :1499-1561

[9] A PHOTOELECTRON-SPECTROSCOPY AND PHOTON STIMULATED DESORPTION STUDY OF H2O ON SI(100)2X1 [J].

LARSSON, CUS ;

FLODSTROM, AS ;

NYHOLM, R ;

INCOCCIA, L ;

SENF, F .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1987, 5 (06) :3321-3324

[10] STRUCTURAL AND ELECTRONIC MODEL OF NEGATIVE ELECTRON AFFINITY ON SI-CS-O SURFACE [J].

LEVINE, JD .

SURFACE SCIENCE, 1973, 34 (01) :90-107

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