LATERAL CONFINEMENT OF SURFACE-STATES ON STEPPED CU(111)

被引：75

作者：

SANCHEZ, O

GARCIA, JM

SEGOVIA, P

ALVAREZ, J

DEPARGA, ALV

ORTEGA, JE

PRIETSCH, M

MIRANDA, R

机构：

[1] Departamento de Física de la Materia Condensada, C-III Universidad Autónoma de Madrid, Cantoblanco

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.52.7894

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By means of scanning tunneling microscopy we observe the lateral confinement of the two-dimensional electron gas of a s,p-like surface state by a regular distribution of steps on vicinal Cu(111). The surface state appears with a reduced binding energy as a result of scattering at steps and partial confinement within the terraces, as revealed by local scanning tunneling spectroscopy. The energy shift of the bottom of the surface state band is measured for several vicinal Cu surfaces with angle-resolved photoemission and found to be consistent with a simple one-dimensional Kronig-Penney model.

引用

页码：7894 / 7897

页数：4

共 11 条

[1] OBSERVATION OF QUANTUM-SIZE EFFECTS AT ROOM-TEMPERATURE ON METAL-SURFACES WITH STM
AVOURIS, P
LYO, IW
[J]. SCIENCE, 1994, 264 (5161) : 942 - 945
[2] REAL-SPACE IMAGING OF ELECTRON-SCATTERING PHENOMENA AT METAL-SURFACES
AVOURIS, P
LYO, IW
WALKUP, RE
HASEGAWA, Y
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1994, 12 (03): : 1447 - 1455
[3] IMAGING STANDING WAVES IN A 2-DIMENSIONAL ELECTRON-GAS
CROMMIE, MF
LUTZ, CP
EIGLER, DM
[J]. NATURE, 1993, 363 (6429) : 524 - 527
[4] CONFINEMENT OF ELECTRONS TO QUANTUM CORRALS ON A METAL-SURFACE
CROMMIE, MF
LUTZ, CP
EIGLER, DM
[J]. SCIENCE, 1993, 262 (5131) : 218 - 220
[5] THEORY OF THE LOCAL DENSITY OF SURFACE-STATES ON A METAL - COMPARISON WITH SCANNING TUNNELING SPECTROSCOPY OF A AU(111) SURFACE
DAVIS, LC
EVERSON, MP
JAKLEVIC, RC
SHEN, WD
[J]. PHYSICAL REVIEW B, 1991, 43 (05): : 3821 - 3830
[6] FABRICATION OF MAGNETIC QUANTUM WIRES BY STEP-FLOW GROWTH OF COBALT ON COPPER SURFACES
DELAFIGUERA, J
HUERTAGARNICA, MA
PRIETO, JE
OCAL, C
MIRANDA, R
[J]. APPLIED PHYSICS LETTERS, 1995, 66 (08) : 1006 - 1008
[7] EFFECTS OF SURFACE-FEATURES UPON THE AU(111) SURFACE-STATE LOCAL DENSITY OF STATES STUDIED WITH SCANNING TUNNELING SPECTROSCOPY
EVERSON, MP
DAVIS, LC
JAKLEVIC, RC
SHEN, W
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1991, 9 (02): : 891 - 896
[8] ATTRACTIVE INTERACTION BETWEEN STEPS
FROHN, J
GIESEN, M
POENSGEN, M
WOLF, JF
IBACH, H
[J]. PHYSICAL REVIEW LETTERS, 1991, 67 (25) : 3543 - 3546
[9] DIRECT OBSERVATION OF STANDING-WAVE FORMATION AT SURFACE STEPS USING SCANNING TUNNELING SPECTROSCOPY
HASEGAWA, Y
AVOURIS, P
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (07) : 1071 - 1074
[10] EVIDENCE FOR A NEW BROADENING MECHANISM IN ANGLE-RESOLVED PHOTOEMISSION FROM CU(111)
KEVAN, SD
[J]. PHYSICAL REVIEW LETTERS, 1983, 50 (07) : 526 - 529

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