This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1016/j.physe.2011.11.010 in citations.
New method of creation of a rearrangeable local Coulomb potential profile and its application for investigations of local conductivity of InAs nanowires
New method of creation of a rearrangeable local Coulomb potential profile and its application for investigations of local conductivity of InAs nanowires
We present a new technique to create a reconfigurable Coulomb potential profile. The potential profile on the sample surface covered with residual polymethyl methacrylate (PMMA) layer as charge accumulation substance is performed with a low DC voltage applied to conductive probe tip of scanning micr...
Saved in:
Personal Name(s): | Zhukov, A.A. |
---|---|
Volk, Ch. / Winden, A. / Hardtdegen, H. / Schäpers, Th. | |
Contributing Institute: |
JARA-FIT; JARA-FIT Halbleiter-Nanoelektronik; PGI-9 |
Published in: | Physica / E, 44 (2011) S. 690 - 695 |
Imprint: |
Amsterdam [u.a.]
North-Holland, Elsevier Science
2011
|
Physical Description: |
690 - 695 |
DOI: |
10.1016/j.physe.2011.11.010 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physica E
44 |
Subject (ZB): | |
Publikationsportal JuSER |
We present a new technique to create a reconfigurable Coulomb potential profile. The potential profile on the sample surface covered with residual polymethyl methacrylate (PMMA) layer as charge accumulation substance is performed with a low DC voltage applied to conductive probe tip of scanning microscope. To characterize the resulted Coulomb potential profile Kelvin probe technique is used. The effectiveness of this method is demonstrated by performing measurements of the local conductivity of InAs quantum wires. These investigations revealed an inhomogeneous conductivity of the wires and the formation of a potential barrier in the wire at the contact pad interface when the electronic system of the wire is depleted. (C) 2011 Elsevier B.V. All rights reserved. |