Polarized unoccupied states of oxygen on Fe(100).

被引：12

作者：

DeRossi, S

Duo, L

Ciccacci, F

机构：

[1] NFM-Dipartimento di Fisica, Politecnico di Milano piazza, Milano, 20133, Leonardo da Vinci 32

来源：

EUROPHYSICS LETTERS | 1995年 / 32卷 / 08期

关键词：

D O I：

10.1209/0295-5075/32/8/012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present spin-polarized inverse photoemission results from oxygen adsorbed on the Fe(100) surface. Results for the clean surface indicate that the crystalline quality influences the spectra, while no surface state contribution is detected. When Fe(100)1 X 1-0 formation occurs a completely polarized adsorbate-derived feature is observed. This state displays a minority spin character at 1.8 eV above the Fermi level while no majority spin counterpart structure is present in the spectra. The present results are in contrast with previous expectations based on theoretical calculations.

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页码：687 / 692

页数：6

相关论文

共 28 条

[1] OXYGEN ON FE(100) - AN INITIAL-OXIDATION STUDY BY SPIN-POLARIZED AUGER-SPECTROSCOPY [J].

ALLENSPACH, R ;

TABORELLI, M ;

LANDOLT, M .

PHYSICAL REVIEW LETTERS, 1985, 55 (23) :2599-2602

[2] DETERMINATION OF ADSORBATE COVERAGES BY LEED AND XPS [J].

BENZIGER, JB ;

MADIX, RJ .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1980, 20 (04) :281-287

[3] ULTRAVIOLET INVERSE PHOTOEMISSION FROM IRON MONOXIDE AND SELF-INTERACTION-CORRECTED LOCAL-SPIN-DENSITY CALCULATIONS [J].

BRAICOVICH, L ;

CICCACCI, F ;

PUPPIN, E ;

SVANE, A ;

GUNNARSSON, O .

PHYSICAL REVIEW B, 1992, 46 (19) :12165-12174

[4]

BRUNDLE CR, 1990, CHEM PHYSICS SOLID S, V3, P131

[5] EMPTY ELECTRONIC STATES OF CALCIUM SILICIDES - AN INVERSE-PHOTOEMISSION INVESTIGATION IN THE ULTRAVIOLET PHOTON RANGE [J].

CHEMELLI, C ;

SANCROTTI, M ;

BRAICOVICH, L ;

CICCACCI, F ;

BISI, O ;

IANDELLI, A ;

OLCESE, GL ;

PALENZONA, A .

PHYSICAL REVIEW B, 1989, 40 (15) :10210-10217

[6] THIN FE FILMS GROWN ON AG(100) STUDIED BY ANGLE-RESOLVED AND SPIN-RESOLVED INVERSE-PHOTOEMISSION SPECTROSCOPY [J].

CHIAIA, G ;

DEROSSI, S ;

MAZZOLARI, L ;

CICCACCI, F .

PHYSICAL REVIEW B, 1993, 48 (15) :11298-11304

[7] 1ST-PRINCIPLES DETERMINATION OF GIANT ADSORPTION-INDUCED SURFACE RELAXATION IN P(1 X-1) O/FE(001) [J].

CHUBB, SR ;

PICKETT, WE .

PHYSICAL REVIEW LETTERS, 1987, 58 (12) :1248-1251

[8] LOW-ENERGY MOTT POLARIMETRY OF ELECTRONS FROM NEGATIVE ELECTRON-AFFINITY PHOTOCATHODES [J].

CICCACCI, F ;

DEROSSI, S ;

CAMPBELL, DM .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (08) :4161-4165

[9] CS AND NF3 COADSORPTION ON GAAS(100) AND GAAS0.62P0.38(100) FOR PHOTOCATHODES PREPARATION [J].

CICCACCI, F ;

CHIAIA, G ;

LENISA, P .

SURFACE SCIENCE, 1992, 269 :920-923

[10] SPIN-POLARIZED ELECTRON-GUN FOR ELECTRON SPECTROSCOPIES [J].

CICCACCI, F ;

VESCOVO, E ;

CHIAIA, G ;

DEROSSI, S ;

TOSCA, M .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (06) :3333-3338