Unexpected negative exchange splitting of the Fe(001) image state

被引：16

作者：

DeRossi, S ^{[1
]}

Ciccacci, F ^{[1
]}

Crampin, S ^{[1
]}

机构：

[1] UNIV BATH, SCH PHYS, BATH BA2 7AY, AVON, ENGLAND

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.77.908

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed a surprising negative exchange splitting of the n = 1 image-potential surface state at Fe(001) using spin resolved inverse photoemission, indicating that the minority-spin level has a lower energy than the majority-spin level. Calculations show the negative sign results from two superimposing effects. A true reverse polarization of the image state, which hybridizes with bulk bands, which is then enhanced by matrix element effects in inverse photoemission.

引用

收藏

页码：908 / 911

页数：4

相关论文

共 35 条

[1] HIGHLY SPIN-POLARIZED, NEARLY FREE-ELECTRON STATES IN FRONT OF CO(10(1)OVER-BAR-0) [J].

BODE, S ;

STARKE, K ;

RECH, P ;

KAINDL, G .

PHYSICAL REVIEW LETTERS, 1994, 72 (07) :1072-1075

[2] 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

[3] 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

[4] EMPTY ELECTRONIC STATES IN MAGNETIC THIN-FILMS - FE ON AU(100), AG(100), AND CU(100) [J].

CICCACCI, F ;

DEROSSI, S .

PHYSICAL REVIEW B, 1995, 51 (17) :11538-11545

[5] Integrity of quantum-well resonances in metallic overlayers [J].

Crampin, S ;

DeRossi, S ;

Ciccacci, F .

PHYSICAL REVIEW B, 1996, 53 (20) :13817-13823

[6] FE ON AU(001) - MAGNETISM AND BAND FORMATION [J].

CRAMPIN, S .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (27) :4647-4664

[7] Spin resolved inverse photoemission of ferromagnets: Fe(100) [J].

DeRossi, S ;

Ciccacci, F .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1995, 76 :177-181

[8] ADSORBATE-INDUCED ENHANCEMENT OF IMAGE-POTENTIAL SURFACE-STATES ON NI(110) [J].

DONATH, M ;

ERTL, K .

SURFACE SCIENCE, 1992, 262 (1-2) :L49-L54

[9] IMAGE-POTENTIAL STATES OBSERVED BY INVERSE PHOTOEMISSION [J].

DOSE, V ;

ALTMANN, W ;

GOLDMANN, A ;

KOLAC, U ;

ROGOZIK, J .

PHYSICAL REVIEW LETTERS, 1984, 52 (21) :1919-1921

[10]

DOSE V, 1985, POLARIZED ELECT SURF

← 1 2 3 4 →