TEMPERATURE EVOLUTION OF THE PHOTOEMISSION SPECTRA FOR THE Si(111) SURFACE USING THE LASER ANNEALING METHOD

2002 ◽  
Vol 09 (02) ◽  
pp. 769-774
Author(s):  
YUICHI HARUYAMA ◽  
SHINJI MATSUI ◽  
TAICHI OKUDA ◽  
AYUMI HARASAWA ◽  
TOYOHIKO KINOSHITA ◽  
...  
Keyword(s):  
Structural Change ◽  
Transition Temperature ◽  
Binding Energy ◽  
Electronic Structures ◽  
Laser Annealing ◽  
Core Level ◽  
Photoemission Spectroscopy ◽  
Spectral Change ◽  
Surface Band ◽  
Annealing Method

We have studied the electronic structures in a wide temperature range for the Si(111) surface using photoemission spectroscopy combined with the laser annealing method. The temperature dependence of the Si 2p surface-sensitive core level photoemission spectra shows some gradual changes along with the thermal broadening above ~1063 K. In addition, the spectral change in the valence band photoemission spectra was also observed across the 7 × 7–1 × 1 transition temperature. These results indicate that the surface band structure is changed along with structural change at the 7 × 7–1 × 1 transition temperature. With increase of the temperature, the shift of the Si 2p core-level photoemission spectra to the lower binding energy side was observed. We discuss the temperature-induced effects such as the thermal broadening and the observed shift.

Interfacial electronic structures at Fe/pentacene/Fe interfaces

2011 ◽  
Vol 1 (SRMS-7) ◽  
Author(s):  
Yu-Zhan Wang ◽  
Xing-Yu Gao ◽  
Andrew Wee ◽  
Dong-Chen Qi ◽  
Shi Chen
Keyword(s):  
Thin Film ◽  
Binding Energy ◽  
Chemical Reaction ◽  
Electronic Structures ◽  
Hole Injection ◽  
Photoemission Spectroscopy ◽  
Core Hole ◽  
Band Bending ◽  
Screening Effect ◽  
Injection Barrier

We investigate the interfacial electronic structures of the heterojunction Fe/pentacene/Fe on Cu(100) substrate, using synchrotron-based photoemission spectroscopy. No chemical reaction is observed at either Fe/pentacene or pentacene/Fe interface. The hole injection barrier was estimated to be about 0.95 eV between pentacene and under the Fe thin film. C K-edge NEXAFS revealed that the long axis of pentacene molecule was almost perpendicular to the surface plane. With increasing Fe thickness deposited on pentacene film, the pentacene's HOMO shifts to higher binding energy whereas the C 1s binding energy showed an interesting unusual behaviour due to the initial band bending gradually suppressed by the increasing core-hole screening effect.

Surface core-level shifts and electronic structures of Yb compounds studied with use of photoemission spectroscopy

1993 ◽  
Vol 47 (7) ◽  
pp. 3933-3943 ◽  
Author(s):  
En-Jin Cho ◽  
J.-S. Chung ◽  
S.-J. Oh ◽  
S. Suga ◽  
M. Taniguchi ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Core Level ◽  
Photoemission Spectroscopy ◽  
Level Shifts

Effects of Ce Doping on Electronic Structures of Ln2-xCexCuO4(Ln=Nd, Sm, Eu, Gd) Studied by Core-Level Photoemission Spectroscopy

1993 ◽  
Vol 32 (Part 1, No. 3A) ◽  
pp. 1070-1076 ◽  
Author(s):  
Hiroyoshi Ishii ◽  
Takehito Koshizawa ◽  
Takaaki Hanyu ◽  
Shigeo Yamaguchi
Keyword(s):  
Electronic Structures ◽  
Core Level ◽  
Photoemission Spectroscopy

scholarly journals Influence of elastic scattering on the measurement of core-level binding energy dispersion in X-ray photoemission spectroscopy

2011 ◽  
Vol 81 (4) ◽  
pp. 399-403
Author(s):  
E. F. Schwier ◽  
C. Monney ◽  
N. Mariotti ◽  
Z. Vydrovà ◽  
M. García-Fernández ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Binding Energy ◽  
Core Level ◽  
Photoemission Spectroscopy ◽  
Energy Dispersion ◽  
X Ray ◽  
Core Level Binding Energy

HIGH RESOLUTION CORE LEVEL SPECTROSCOPY AT THE Cu/Ru(0001) INTERFACE

2002 ◽  
Vol 09 (02) ◽  
pp. 723-727 ◽  
Author(s):  
T. H. ANDERSEN ◽  
L. BECH ◽  
J. ONSGAARD ◽  
S. V. HOFFMANN ◽  
Z. LI
Keyword(s):  
High Resolution ◽  
Synchrotron Radiation ◽  
Binding Energy ◽  
Energy Shift ◽  
Core Level ◽  
Photoemission Spectroscopy ◽  
Copper Adsorption ◽  
X Ray ◽  
Level Shifts ◽  
Binding Energy Shift

Copper adsorption on Ru(0001) has been studied by synchrotron radiation. The clean Ru 3d 5/2 spectra were found to consist of two components with a binding energy shift of 400 meV. The component with the lower binding energy represents the first layer of ruthenium atoms. Adsorption of copper gives rise to core level shifts of the Ru 3d 5/2 components, which were studied as a function of Cu coverage. Experiments were carried out with copper coverages varying from the submonolayer range up to two monolayers of copper. The binding energy of the Cu 2p 3/2 level was measured by X-ray photoemission spectroscopy.

Electronic Structures of Porous Si Studied by Core-Level Absorption and Photoemission Spectroscopy

1993 ◽  
Vol 32 (Part 2, No. 3B) ◽  
pp. L361-L364 ◽  
Author(s):  
Koichi Inoue ◽  
Kenzo Maehashi ◽  
Hisao Nakashima
Keyword(s):  
Electronic Structures ◽  
Core Level ◽  
Photoemission Spectroscopy ◽  
Porous Si

scholarly journals Electronic Structure of n-Cycloparaphenylenes Directly Observed by Photoemission Spectroscopy

2021 ◽  
Author(s):  
Kaname Kanai ◽  
Takuya Inoue ◽  
Takaya Furuichi ◽  
Kaito Shinoda ◽  
Takashi Iwahashi ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Electronic Structures ◽  
Photoemission Spectroscopy ◽  
Cyclic Structure ◽  
Visible Absorption ◽  
X Ray ◽  
Inverse Photoemission

A series of n-cycloparaphenylenes ([n]CPP) were studied by ultraviolet photoemission, inverse photoemission, ultraviolet-visible absorption, and X-ray photoemission spectroscopy to detect their unique electronic structures. [n]CPP has a cyclic structure in...

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