ATOMIC-STRUCTURE OF FEAL(001)

被引：27

作者：

WANG, CP

JONA, F

GLEASON, NR

STRONGIN, DR

MARCUS, PM

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598

[2] SUNY STONY BROOK,DEPT CHEM,STONY BROOK,NY 11794

来源：

SURFACE SCIENCE | 1993年 / 298卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0039-6028(93)90087-Z

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 atomic structure of a clean {001} surface of the ordered binary alloy FeAl with 46 at% Al (lattice parameter 2.904 angstrom) has been determined by low-energy electron diffraction analysis. The bulk structure is of the CsCl-type. The top surface plane is shown to be an Al layer, with an Fe plane for the second layer. The first interlayer spacing (between Al and Fe) is found to be contracted by 14.6%, while the second interlayer spacing (between Fe and Al) is found to be expanded by 4%. A sputter-cleaned but not annealed surface of this alloy is found to have ordered regions of predominantly bcc Fe{001}.

引用

收藏

页码：114 / 120

页数：7

相关论文

共 37 条

[1] STRUCTURE OF A NON-BULK TERMINATION OF THE CLEAN PT3SN(111) SURFACE - A STUDY BY LOW-ENERGY ELECTRON-DIFFRACTION AND X-RAY PHOTOELECTRON DIFFRACTION [J].

ATREI, A ;

BARDI, U ;

TORRINI, M ;

ZANAZZI, E ;

ROVIDA, G ;

KASAMURA, H ;

KUDO, M .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (14) :L207-L212

[2] STRUCTURE OF THE (001)-ORIENTED AND (111)-ORIENTED SURFACES OF THE ORDERED FCC PT3SN ALLOY BY LOW-ENERGY-ELECTRON-DIFFRACTION INTENSITY ANALYSIS [J].

ATREI, A ;

BARDI, U ;

ROVIDA, G ;

TORRINI, M ;

ZANAZZI, E ;

ROSS, PN .

PHYSICAL REVIEW B, 1992, 46 (03) :1649-1654

[3] LEED STRUCTURAL-ANALYSIS OF THE (001) SURFACE OF THE ORDERED FCC PT3TI ALLOY [J].

ATREI, A ;

PEDOCCHI, L ;

BARDI, U ;

ROVIDA, G ;

TORRINI, M ;

ZANAZZI, E ;

VANHOVE, MA ;

ROSS, PN .

SURFACE SCIENCE, 1992, 261 (1-3) :64-68

[4]

BRADLEY AJ, 1932, J IRON STEEL I, V125, P339

[5] ORDER-DISORDER AND SEGREGATION BEHAVIOR AT THE CU3AU(001) SURFACE [J].

BUCK, TM ;

WHEATLEY, GH ;

MARCHUT, L .

PHYSICAL REVIEW LETTERS, 1983, 51 (01) :43-46

[6] ATOMIC RIPPLING OF A METALLIC ORDERED ALLOY SURFACE-NIAL(110) [J].

DAVIS, HL ;

NOONAN, JR .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1985, 3 (03) :1507-1510

[7] RIPPLED RELAXATION IN THE (110) SURFACE OF THE ORDERED METALLIC ALLOY NIAL [J].

DAVIS, HL ;

NOONAN, JR .

PHYSICAL REVIEW LETTERS, 1985, 54 (06) :566-569

[8]

DAVIS HL, 1988, STRUCTURE SURFACES, V2, P152

[9] SPIN AND ORBITAL MAGNETISM IN 3D SYSTEMS [J].

ERIKSSON, O ;

NORDSTROM, L ;

POHL, A ;

SEVERIN, L ;

BORING, AM ;

JOHANSSON, B .

PHYSICAL REVIEW B, 1990, 41 (17) :11807-11812

[10] INFLUENCE OF THE TRANSITION-METAL AND OF ORDER ON THE COMPOSITION PROFILE OF PT80M20(111) (M = NI, CO FE) ALLOY SURFACES - LEED STUDY OF PT80CO20(111) [J].

GAUTHIER, Y ;

BAUDOINGSAVOIS, R ;

BUGNARD, JM ;

BARDI, U ;

ATREI, A .

SURFACE SCIENCE, 1992, 276 (1-3) :1-11

← 1 2 3 4 →