Electron relaxation in empty quantum-well states of a Pb island on Cu(111) studied by Z-V (distance-voltage) spectroscopy in scanning tunneling microscopy

被引：5

作者：

Lu, S. M. ^{[1
,2
]}

Su, W. B. ^{[1
,2
]}

Lin, C. L. ^{[1
]}

Chan, W. Y. ^{[1
]}

Hsiao, H. L. ^{[2
]}

Chang, C. S. ^{[1
]}

Tsong, Tien T. ^{[1
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

[2] Tunghai Univ, Dept Phys, Taichung 407, Taiwan

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 08期

关键词：

PHOTOEMISSION-SPECTROSCOPY; IMAGE STATES; THIN-FILMS; SURFACE; PHONON; METALS; DYNAMICS; GAS;

D O I：

10.1063/1.3483241

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We use the Z-V (distance-voltage) spectroscopy in scanning tunneling microscopy to detect the linewidths of empty quantum-well (QW) states acquired from a Pb island grown on the Cu(111) substrate. It is found that the continual broadening of the linewidth can extend to the electronic states near the vacuum level. We apply the Fermi-liquid theory with the Fabry-Perot mode to analyze the linewidths of the QW states, and obtain the electron-phonon coupling constant, the electron-electron coupling factor, and the product of the electron reflectivities at the surface and interface of the Pb island. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3483241]

引用

页数：5

共 2 条

[1] Decay mechanisms of excited electrons in quantum-well states of ultrathin Pb islands grown on Si(111): Scanning tunneling spectroscopy and theory
Hong, I-Po
Brun, Christophe
Patthey, Francois
Sklyadneva, I. Yu.
Zubizarreta, X.
Heid, R.
Silkin, V. M.
Echenique, P. M.
Bohnen, K. P.
Chulkov, E. V.
Schneider, Wolf-Dieter
PHYSICAL REVIEW B, 2009, 80 (08)
[2] Field-Induced Expansion Deformation in Pb Islands on Cu(111): Evidence from Energy Shift of Empty Quantum-Well States
Chan, W. Y.
Huang, H. S.
Su, W. B.
Lin, W. H.
Jeng, H. -T.
Wu, M. K.
Chang, C. S.
PHYSICAL REVIEW LETTERS, 2012, 108 (14)

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