Electron confinement in nickel and copper nanostructures on Cu(111)

被引：30

作者：

Pons, S ^{[1
]}

Mallet, P ^{[1
]}

Veuillen, JY ^{[1
]}

机构：

[1] CNRS, LEPES, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.64.193408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Room-temperature deposition of Ni on Cu(111) in the submonolayer range induces the growth of monolayer and bilayer islands. Bilayer nanoscale islands with either Ni or Cu surface layer are found to coexist, the electronic properties of which have been probed by low-temperature scanning tunneling microscopy. For both systems, a dispersive surface state is identified by local tunneling spectroscopy, and quantum interferences patterns due to the finite lateral size of the islands are observed by differential conductance mapping. Electron confinement on Cu-terminated islands is analyzed with a simple model to estimate the effective mass and the band edge of the associated surface state.

引用

收藏

页数：4

相关论文

共 27 条

[1] OBSERVATION OF QUANTUM-SIZE EFFECTS AT ROOM-TEMPERATURE ON METAL-SURFACES WITH STM [J].

AVOURIS, P ;

LYO, IW .

SCIENCE, 1994, 264 (5161) :942-945

[2] SCANNING TUNNELING MICROSCOPY AND PHOTOEMISSION FROM FE/CU(111) [J].

BRODDE, A ;

DREPS, K ;

BINDER, J ;

LUNAU, C ;

NEDDERMEYER, H .

PHYSICAL REVIEW B, 1993, 47 (11) :6609-6616

[3] Probing hot-electron dynamics at surfaces with a cold scanning tunneling microscope [J].

Bürgi, L ;

Jeandupeux, O ;

Brune, H ;

Kern, K .

PHYSICAL REVIEW LETTERS, 1999, 82 (22) :4516-4519

[4] Noble metal surface states:: deviations from parabolic dispersion [J].

Bürgi, L ;

Petersen, L ;

Brune, H ;

Kern, K .

SURFACE SCIENCE, 2000, 447 (1-3) :L157-L161

[5] Confinement of surface state electrons in Fabry-Perot resonators [J].

Bürgi, L ;

Jeandupeux, O ;

Hirstein, A ;

Brune, H ;

Kern, K .

PHYSICAL REVIEW LETTERS, 1998, 81 (24) :5370-5373

[6] IMAGING STANDING WAVES IN A 2-DIMENSIONAL ELECTRON-GAS [J].

CROMMIE, MF ;

LUTZ, CP ;

EIGLER, DM .

NATURE, 1993, 363 (6429) :524-527

[7] CONFINEMENT OF ELECTRONS TO QUANTUM CORRALS ON A METAL-SURFACE [J].

CROMMIE, MF ;

LUTZ, CP ;

EIGLER, DM .

SCIENCE, 1993, 262 (5131) :218-220

[8] SCANNING-TUNNELING-MICROSCOPY STUDY OF THE GROWTH OF COBALT ON CU(111) [J].

DELAFIGUERA, J ;

PRIETO, JE ;

OCAL, C ;

MIRANDA, R .

PHYSICAL REVIEW B, 1993, 47 (19) :13043-13046

[9] SURFACE-STATE CONTRIBUTION TO THE MAGNETIC-MOMENT OF NI(111) [J].

DONATH, M ;

PASSEK, F ;

DOSE, V .

PHYSICAL REVIEW LETTERS, 1993, 70 (18) :2802-2805

[10] DIRECT OBSERVATION OF STANDING-WAVE FORMATION AT SURFACE STEPS USING SCANNING TUNNELING SPECTROSCOPY [J].

HASEGAWA, Y ;

AVOURIS, P .

PHYSICAL REVIEW LETTERS, 1993, 71 (07) :1071-1074