Strain-induced enhanced solubility of Au in epitaxial films of Fe

被引：12

作者：

Pastor, CJ

Limones, C

Hinarejos, JJ

Garcia, JM

Miranda, R

GomezGoni, J

Ortega, JE

Abruna, HD

机构：

[1] UNIV AUTONOMA MADRID,DEPT FIS MAT CONDENSADA,E-28049 MADRID,SPAIN

[2] UNIV POLITECN MADRID,DEPT FIS APLICADA TECNOL INFORMAT,E-28031 MADRID,SPAIN

[3] EUSKAL HERRIKO UNIBERTSITATEA,MAT FIS SAILA,E-20080 DONOSTIA,SAN SEBASTIAN,SPAIN

[4] CORNELL UNIV,BAKER LAB,DEPT CHEM,ITHACA,NY 14853

来源：

SURFACE SCIENCE | 1996年 / 364卷 / 01期

关键词：

alloys; gold; iron; low energy ion scattering (LEIS); low index single crystal surfaces; magnetic films; magnetic interfaces; metal-metal magnetic thin film structures; quantum wells; scanning tunneling microscopy; single crystal epitaxy; surface segregation; X-ray photoelectron spectroscopy;

D O I：

10.1016/0039-6028(96)00767-4

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 presence of an Au surfactant overlayer allows the growth of high-quality Fe thin layers on Au(100) at 420 K to a depth of at least 70 Angstrom The surfactant layer can be removed from the surface by gentle ion sputtering. After this removal,Au is still found within the Fe film, as judged by a 0.3 eV shift to lower binding energies of the Au 4f photoemission peak. Quantification of the XPS signal indicates that the total atomic concentration of Au diluted within the Fe layer is similar to 3%, i.e. much higher than the bulk solubility at 420 K. We suggest that relaxation of the strain causes the enhanced solubility of Au in the Fe layer.

引用

页码：L505 / L510

页数：6

共 22 条

[1] ELECTRONIC-STRUCTURE OF IRON SILICIDES GROWN ON SI(100) DETERMINED BY PHOTOELECTRON SPECTROSCOPIES [J].

ALVAREZ, J ;

HINAREJOS, JJ ;

MICHEL, EG ;

CASTRO, GR ;

MIRANDA, R .

PHYSICAL REVIEW B, 1992, 45 (24) :14042-14051

[2] MAGNETIC-PROPERTIES OF NOVEL EPITAXIAL-FILMS [J].

BADER, SD ;

MOOG, ER .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (08) :3729-3734

[3]

BARTH JV, 1993, SURF SCI, V292, pL769, DOI 10.1016/0039-6028(93)90376-U

[4] GROWTH OF ULTRATHIN FILMS OF FE ON AU(001) [J].

BEGLEY, AM ;

KIM, SK ;

QUINN, J ;

JONA, F ;

OVER, H ;

MARCUS, PM .

PHYSICAL REVIEW B, 1993, 48 (03) :1779-1785

[5] FABRICATION OF MAGNETIC QUANTUM WIRES BY STEP-FLOW GROWTH OF COBALT ON COPPER SURFACES [J].

DELAFIGUERA, J ;

HUERTAGARNICA, MA ;

PRIETO, JE ;

OCAL, C ;

MIRANDA, R .

APPLIED PHYSICS LETTERS, 1995, 66 (08) :1006-1008

[6] INFLUENCE OF THE GROWTH-CONDITIONS ON THE MAGNETIC-PROPERTIES OF FCC COBALT FILMS - FROM MONOLAYERS TO SUPERLATTICES [J].

DEMIGUEL, JJ ;

CEBOLLADA, A ;

GALLEGO, JM ;

MIRANDA, R ;

SCHNEIDER, CM ;

SCHUSTER, P ;

KIRSCHNER, J .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 93 :1-9

[7] ESCAPE DEPTHS OF X-RAY (MG K-ALPHA)INDUCED PHOTOELECTRONS AND RELATIVE PHOTOIONIZATION CROSS-SECTIONS FOR 3P SUBSHELL OF ELEMENTS OF 1ST LONG PERIOD [J].

EVANS, S ;

PRITCHARD, RG ;

THOMAS, JM .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1977, 10 (13) :2483-2498

[8]

GARCIA J, UNPUB

[9] LOW-ENERGY ION SCATTERING - ELASTIC AND INELASTIC EFFECTS [J].

HEILAND, W ;

TAGLAUER, E .

NUCLEAR INSTRUMENTS & METHODS, 1976, 132 (JAN-F) :535-545

[10] FE ON AU(100) - QUANTUM-WELL STATES DOWN TO A MONOLAYER [J].

HIMPSEL, FJ .

PHYSICAL REVIEW B, 1991, 44 (11) :5966-5969

← 1 2 3 →