Coverage dependent surface photovoltage induced by synchrotron radiation at metal/GaAs interfaces

1991 ◽  
Vol 9 (3) ◽  
pp. 898-901 ◽  
Author(s):  
D. Mao ◽  
A. Kahn ◽  
M. Marsi ◽  
G. Margaritondo
Keyword(s):  
Synchrotron Radiation ◽  
Surface Photovoltage

SURFACE-PHOTOVOLTAGE EFFECT IN A GaAs–GaAsP SUPERLATTICE STUDIED WITH COMBINATION OF SYNCHROTRON RADIATION AND THE LASER

2002 ◽  
Vol 09 (02) ◽  
pp. 1297-1301 ◽  
Author(s):  
SENKU TANAKA ◽  
SAM D. MORÉ ◽  
KAZUTOSHI TAKAHASHI ◽  
MASAO KAMADA ◽  
TOMOHIRO NISHITANI ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Photoelectron Spectroscopy ◽  
Thermal Equilibrium ◽  
Core Level ◽  
Surface Photovoltage ◽  
Band Bending ◽  
Bulk Gaas ◽  
Temporal Profile ◽  
Significant Difference ◽  
Temporal Profiles

Core-level photoelectron spectroscopy with the combination of synchrotron radiation (SR) and a laser was used for exploring the surface-photovoltage (SPV) effect and its temporal profiles in a GaAs–GaAsP superlattice (SL). It was observed that the SPV value in the SL is suppressed as compared with a bulk GaAs. However, no significant difference was found in the temporal profile between the bulk and the SL. It is suggested that the suppression of the SPV in the SL is dominantly due to the small value of band bending under thermal equilibrium.

Synchrotron radiation induced surface photovoltage at metal/GaAs interfaces

1991 ◽  
Vol 48-49 ◽  
pp. 324-331 ◽  
Author(s):  
D. Mao ◽  
A. Kahn ◽  
M. Marsi ◽  
G. Margaritondo
Keyword(s):  
Synchrotron Radiation ◽  
Surface Photovoltage ◽  
Radiation Induced

Kelvin probe and synchrotron radiation study of surface photovoltage and band bending at metal/GaAs (100) interfaces

1992 ◽  
Vol 56-58 ◽  
pp. 142-150 ◽  
Author(s):  
D. Mao ◽  
A. Kahn ◽  
G. Le Lay ◽  
M. Marsi ◽  
Y. Hwu ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Surface Photovoltage ◽  
Kelvin Probe ◽  
Band Bending ◽  
Radiation Study

Schottky barrier and surface photovoltage induced by synchrotron radiation in GaP(110)/Ag

1993 ◽  
Vol 47 (20) ◽  
pp. 13520-13526 ◽  
Author(s):  
P. Chiaradia ◽  
J. E. Bonnet ◽  
M. Fanfoni ◽  
C. Goletti ◽  
G. Lampel
Keyword(s):  
Synchrotron Radiation ◽  
Schottky Barrier ◽  
Surface Photovoltage

Direct Observation of Monolayer Zones in Al-wt 4% Cu

1990 ◽  
Vol 48 (1) ◽  
pp. 14-15
Author(s):  
B. Jouffrey ◽  
D. Dorignac ◽  
A. Bourret
Keyword(s):  
Solid Solution ◽  
Synchrotron Radiation ◽  
Direct Observation ◽  
Supersaturated Solid Solution ◽  
Original Model ◽  
X Ray ◽  
Image Position

Since the early works on GP zones and the model independently proposed by Preston and Guinier on the first steps of precipitation in supersaturated solid solution of aluminium containing a few percent of copper, many works have been performed to understand the structure of different stages in the sequence of precipitation.The scheme which is generally admitted can be drawn from a work by Phillips.In their original model Guinier and Preston analysed a GP zone as composed of a single (100) copperrich plane surrounded by aluminum atomic planes with a slightly shorter distance from the original plane than in the solid solution.From X-ray measurements it has also been shown that GP1 zones were not only copper monolayer zones. They could be up to a few atomic planes thick. Different models were proposed by Guinier, Gerold, Toman. Using synchrotron radiation, proposals have been recently made.

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