Photo-Hall measurements on phosphorus-doped n-type CVD diamond at low temperatures

2003 ◽  
Vol 199 (1) ◽  
pp. 82-86 ◽  
Author(s):  
Z. Remes ◽  
R. Kalish ◽  
C. Uzan-Saguy ◽  
E. Baskin ◽  
M. Nesládek ◽  
...  
1992 ◽  
Vol 281 ◽  
Author(s):  
S. Arscott ◽  
M. Missous ◽  
L. Dobaczewski ◽  
P. C. Harness ◽  
D. K. Maude ◽  
...  

ABSTRACTShubnikov-de Haas and Hall measurements have been performed on singly delta doped GaAs(Si) structures, grown by molecular beam epitaxy, enabling us to study the effects of illumination and temperature upon bulk and individual subband, mobilities and carrier concentrations. In a highly doped sample, where the peak 3D electron concentration approaches 2×1019cm−3, we have observed novel changes in subband transport characteristics, not observed in the lower doped samples, which we attribute to the presence of DX centre phenomena. This paper explains the variations in individual subband transport properties due to a possible shift of the electronic wave functions contained in the potential well. This shift occurs due to a recombination-autoionization(R-A) process involving filled DX centres and free holes upon sample illumination at low temperatures.


2019 ◽  
Vol 114 (11) ◽  
pp. 112106 ◽  
Author(s):  
Marie-Amandine Pinault-Thaury ◽  
Solange Temgoua ◽  
Rémi Gillet ◽  
Hakima Bensalah ◽  
Ingrid Stenger ◽  
...  
Keyword(s):  

2004 ◽  
Vol 201 (11) ◽  
pp. 2451-2456 ◽  
Author(s):  
M. Katagiri ◽  
J. Isoya ◽  
S. Koizumi ◽  
H. Kanda

2000 ◽  
Vol 621 ◽  
Author(s):  
F.A.M. Köck ◽  
J.M. Garguilo ◽  
B. Brown ◽  
R.J. Nemanich

ABSTRACTImaging of field emission and photoemission from diamond surfaces is accomplished with a high resolution photo-electron emission microscope (PEEM). Measurements obtained as a function of sample temperature up to 1000°C display thermionic field emission images (TFEEM). The system can also record the emission current versus applied voltage. N-doped diamond films have been produced by MPCVD with a N/C gas phase ratio of 48. The surfaces display uniform emission in PEEM at all temperatures. No FEEM images are detectable below 500°C. At ∼680°C the T-FEEM and PEEM images are nearly identical in intensity and uniformity. This is to be contrasted with other carbon based cold cathodes in which the emission is observed from only a low density of highly emitting sites. The I/V measurements obtained from the N-doped films in the T-FEEM configuration show a component that depends linearly on voltage at low fields. At higher fields, an approximately exponential dependence is observed. At low temperatures employed (<700°C), the results indicate a thermionic component to the emitted current.


2004 ◽  
Vol 201 (11) ◽  
pp. 2405-2413 ◽  
Author(s):  
R. Sauer ◽  
N. Teofilov ◽  
K. Thonke ◽  
S. Koizumi

1999 ◽  
Vol 8 (2-5) ◽  
pp. 882-885 ◽  
Author(s):  
M Nesládek ◽  
K Meykens ◽  
K Haenen ◽  
L.M Stals ◽  
T Teraji ◽  
...  

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