Surface electronic structure of Gd(0001) films on W(110)

被引：12

作者：

Pascal, R

Zarnitz, C

Bode, M

Getzlaff, M

Wiesendanger, R

机构：

[1] Univ Hamburg, Inst Appl Phys, D-20355 Hamburg, Germany

[2] Univ Hamburg, Microstruct Res Ctr, D-20355 Hamburg, Germany

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1997年 / 65卷 / 06期

关键词：

D O I：

10.1007/s003390050628

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of Gd islands on W(110) was studied by means of scanning tunneling microscopy (STM). The empty and filled parts of the well-known d(z2)-like surface state appear as peaks in the tunneling spectra above Cd islands with a local coverage of 4-15 ML but not above the first ML. Small disturbances, induced by the tunneling tip by the application of a bias voltage which exceeds the tunneling barrier height, lead to a collapse of the surface state. This collapse is visible in the apparent height of constant-current STM-images. Scanning tunneling spectroscopy addresses the origin of the change to the suppression of the Gd(0001) surface state by hydrogen transferred from the tip to the surface.

引用

页码：603 / 606

页数：4

共 20 条

[1] PHASE-TRANSITIONS AND STATIC SPIN CORRELATIONS IN ISING MODELS WITH FREE SURFACES [J].

BINDER, K ;

HOHENBERG, PC .

PHYSICAL REVIEW B-SOLID STATE, 1972, 6 (09) :3461-+

[2] AB-INITIO CALCULATION OF THE PROPERTIES OF THE GD(0001) SURFACE [J].

BYLANDER, DM ;

KLEINMAN, L .

PHYSICAL REVIEW B, 1994, 50 (07) :4996-4999

[3] BULK AND SURFACE MAGNETISM AND INTERPLANAR SPACINGS IN GD FROM FIRST-PRINCIPLES CALCULATIONS [J].

ERIKSSON, O ;

AHUJA, R ;

ORMECI, A ;

TRYGG, J ;

HJORTSTAM, O ;

SODERLIND, P ;

JOHANSSON, B ;

WILLS, JM .

PHYSICAL REVIEW B, 1995, 52 (06) :4420-4426

[4] THICKNESS-DEPENDENT CURIE-TEMPERATURE OF GD(0001)/W(110) AND ITS DEPENDENCE ON THE GROWTH-CONDITIONS [J].

FARLE, M ;

BABERSCHKE, K ;

STETTER, U ;

ASPELMEIER, A ;

GERHARDTER, F .

PHYSICAL REVIEW B, 1993, 47 (17) :11571-11574

[5] TEMPERATURE-DEPENDENT EXCHANGE SPLITTING OF UNOCCUPIED ELECTRONIC STATES IN GD(0001) [J].

FEDOROV, AV ;

STARKE, K ;

KAINDL, G .

PHYSICAL REVIEW B, 1994, 50 (04) :2739-2742

[6] UNOCCUPIED SURFACE ELECTRONIC-STRUCTURE OF GD(0001) [J].

LI, DL ;

DOWBEN, PA ;

ORTEGA, JE ;

HIMPSEL, FJ .

PHYSICAL REVIEW B, 1994, 49 (11) :7734-7738

[7] DEVELOPMENT OF THE GD(0001) BAND-STRUCTURE WITH FILM THICKNESS [J].

LI, DQ ;

HUTCHINGS, CW ;

DOWBEN, PA ;

WU, RT ;

HWANG, C ;

ONELLION, M ;

ANDREWS, AB ;

ERSKINE, JL .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (10) :6565-6567

[8] SURFACE ANISOTROPY AND SURFACE SPIN CANTING IN THE SEMI-INFINITE FERROMAGNET [J].

MILLS, DL .

PHYSICAL REVIEW B, 1989, 39 (16) :12306-12307

[9] SURFACE EFFECTS IN MAGNETIC CRYSTALS NEAR ORDERING TEMPERATURE [J].

MILLS, DL .

PHYSICAL REVIEW B, 1971, 3 (11) :3887-&

[10] SURFACE MAGNETISM OF GD(0001) - EVIDENCE OF FERROMAGNETIC COUPLING TO BULK [J].

MULHOLLAN, GA ;

GARRISON, K ;

ERSKINE, JL .

PHYSICAL REVIEW LETTERS, 1992, 69 (22) :3240-3243

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