RECONSTRUCTION AND FERMI-SURFACE OF W(001)

被引：39

作者：

SMITH, KE ^{[1
]}

ELLIOTT, GS ^{[1
]}

KEVAN, SD ^{[1
]}

机构：

[1] UNIV OREGON,DEPT PHYS,EUGENE,OR 97403

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.42.5385

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report results of a photoemission study of the two-dimensional Fermi surface of W(001). We present a Fermi surface that displays large-scale nesting and that is compatible with both a charge-density-wave model for the reconstruction and an incommensurate structure for W(001) above room temperature, as suggested by recent He-scattering experiments. Our data are also consistent with a local-bonding model for the surface structure, and we conclude that the reconstruction is probably driven by a combination of both localized and delocalized electronic effects. © 1990 The American Physical Society.

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页码：5385 / 5387

页数：3

相关论文

共 20 条

[1] COUPLING OF SURFACE ELECTRONIC STATES THROUGH THE W(001) PHASE-TRANSITION [J].

CAMPUZANO, JC ;

KING, DA ;

SOMERTON, C ;

INGLESFIELD, JE .

PHYSICAL REVIEW LETTERS, 1980, 45 (20) :1649-1652

[2] SURFACE-STATES ON W [001] (1X1) AND (SQUARE-ROOT 2 X SQUARE-ROOT 2)R45-DEGREES PHASES - ANGLE-RESOLVED PHOTOEMISSION [J].

CAMPUZANO, JC ;

INGLESFIELD, JE ;

KING, DA ;

SOMERTON, C .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (21) :3099-3113

[3] SPACE-GROUP DETERMINATION OF LOW-TEMPERATURE W(001)(SQUARE ROOT 2X SQUARE ROOT 2) SURFACE-STRUCTURE BY LOW-ENERGY-ELECTRON DIFFRACTION [J].

DEBE, MK ;

KING, DA .

PHYSICAL REVIEW LETTERS, 1977, 39 (11) :708-711

[4] CLEAN THERMALLY INDUCED W[001](1X1)-](SQUARE-ROOT 2XSQUARE-ROOT 2) R-45-DEGREES SURFACE-STRUCTURE TRANSITION AND ITS CRYSTALLOGRAPHY [J].

DEBE, MK ;

KING, DA .

SURFACE SCIENCE, 1979, 81 (01) :193-237

[5]

ELLIOTT GI, UNPUB

[6] OBSERVATION OF A SOFT SURFACE-PHONON MODE IN THE RECONSTRUCTION OF CLEAN W(100) [J].

ERNST, HJ ;

HULPKE, E ;

TOENNIES, JP .

PHYSICAL REVIEW LETTERS, 1987, 58 (19) :1941-1944

[7]

ERNST J, COMMUNICATION

[8] PHASE-TRANSITION ON MO(100) AND W(100) SURFACES [J].

FELTER, TE ;

BARKER, RA ;

ESTRUP, PJ .

PHYSICAL REVIEW LETTERS, 1977, 38 (20) :1138-1141

[9] EXPERIMENTAL FERMI SURFACES OF CLEAN AND HYDROGEN-COVERED W(110) [J].

GAYLORD, RH ;

JEONG, KH ;

KEVAN, SD .

PHYSICAL REVIEW LETTERS, 1989, 62 (17) :2036-2039

[10] DE HAAS-VAN ALPHEN EFFECT AND FERMI SURFACE OF TUNGSTEN [J].

GIRVAN, RF ;

GOLD, AV ;

PHILLIPS, RA .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1968, 29 (09) :1485-&