STUDY OF A SURFACE-STATE IN A AG-AU SUPERLATTICE GAP

被引：36

作者：

MILLER, T ^{[1
]}

CHIANG, TC ^{[1
]}

机构：

[1] UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.68.3339

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ag-Au(111) superlattices are examined with angle-resolved photoemission. A Shockley-type surface state is observed within a superlattice gap. Varying the location of the terminating (surface) plane within a superlattice period causes this surface state to move across the gap for one half of the period and to disappear for the other half of the period. These observations arc in good agreement with theoretical predictions.

引用

页码：3339 / 3342

页数：4

共 12 条

[1] BAND-STRUCTURE OF CU, AG AND AU - LOCATION OF DIRECT TRANSITIONS ON THE LAMBDA-LINE USING ANGLE-RESOLVED PHOTOELECTRON-SPECTROSCOPY (ARUPS) [J].

COURTHS, R ;

WERN, H ;

HAU, U ;

CORD, B ;

BACHELIER, V ;

HUFNER, S .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1984, 14 (06) :1559-1572

[2]

Forstmann F., 1978, Photoemission and the electronic properties of surfaces, P193

[3]

GOLDMANN A, 1989, LANDOLTBORNSTEIN NUM, V23

[4]

Goodwin ET, 1939, P CAMB PHILOS SOC, V35, P205

[5] SPATIAL DEPENDENCE AND BINDING-ENERGY SHIFT OF SURFACE-STATES FOR EPITAXIAL OVERLAYERS OF AU ON AG(111) AND AG ON AU(111) [J].

HSIEH, TC ;

CHIANG, TC .

SURFACE SCIENCE, 1986, 166 (2-3) :554-560

[6] THEORY OF METAL-SURFACES - INDUCED SURFACE CHARGE AND IMAGE POTENTIAL [J].

LANG, ND ;

KOHN, W .

PHYSICAL REVIEW B, 1973, 7 (08) :3541-3550

[7] BAND FOLDING AND ENERGY-GAP FORMATION IN AG-AU SUPERLATTICES [J].

MILLER, T ;

MUELLER, MA ;

CHIANG, TC .

PHYSICAL REVIEW B, 1989, 40 (02) :1301-1304

[8] DETERMINATION OF THE BULK BAND-STRUCTURE OF AG IN AG/CU(111) QUANTUM-WELL SYSTEMS [J].

MUELLER, MA ;

MILLER, T ;

CHIANG, TC .

PHYSICAL REVIEW B, 1990, 41 (08) :5214-5220

[9] HIGH-RESOLUTION ANGLE-RESOLVED PHOTOEMISSION-STUDY OF THE AG BAND-STRUCTURE ALONG LAMBDA [J].

NELSON, JG ;

KIM, S ;

GIGNAC, WJ ;

WILLIAMS, RS ;

TOBIN, JG ;

ROBEY, SW ;

SHIRLEY, DA .

PHYSICAL REVIEW B, 1985, 32 (06) :3465-3471

[10] On the surface states associated with a periodic potential [J].

Shockley, W .

PHYSICAL REVIEW, 1939, 56 (04) :317-323

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