Single-hole tunneling in SiGe nanostructures
Single-hole tunneling in SiGe nanostructures
We have fabricated quantum dots and quantum wires in p-type silicon germanium grown on SOI substrates. Electrical characteristics at low temperature show clear Coulomb blockade and Coulomb staircases in both structures. Gate-controlled experiments show conductance oscillations with a single period in quantum dots and multiple periods in quantum wires. While single-hole tunnelling is easily achieved in quantum dots, a more complicated hole transport results in quantum wires with a narrow control range for a true single-hole tunnelling.
137-140
Kanjanachuchai, S.
44e83567-0bea-4e7a-b5e6-d6ed2ce3f27d
Bonar, J.M.
50b22935-17c1-46ab-88a2-a8f7baabb39a
Parker, G.J.
edf88b88-ba05-48a5-8ae4-d6d6aa984364
Ahmed, H.
4ebe4b2e-14c1-406d-99a5-88ebc6202e9a
1 May 1999
Kanjanachuchai, S.
44e83567-0bea-4e7a-b5e6-d6ed2ce3f27d
Bonar, J.M.
50b22935-17c1-46ab-88a2-a8f7baabb39a
Parker, G.J.
edf88b88-ba05-48a5-8ae4-d6d6aa984364
Ahmed, H.
4ebe4b2e-14c1-406d-99a5-88ebc6202e9a
Kanjanachuchai, S., Bonar, J.M., Parker, G.J. and Ahmed, H.
(1999)
Single-hole tunneling in SiGe nanostructures.
Microelectronic Engineering, 46, .
(doi:10.1016/S0167-9317(99)00037-4).
Abstract
We have fabricated quantum dots and quantum wires in p-type silicon germanium grown on SOI substrates. Electrical characteristics at low temperature show clear Coulomb blockade and Coulomb staircases in both structures. Gate-controlled experiments show conductance oscillations with a single period in quantum dots and multiple periods in quantum wires. While single-hole tunnelling is easily achieved in quantum dots, a more complicated hole transport results in quantum wires with a narrow control range for a true single-hole tunnelling.
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Published date: 1 May 1999
Organisations:
Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 252552
URI: http://eprints.soton.ac.uk/id/eprint/252552
ISSN: 0167-9317
PURE UUID: 435265f5-7bb9-45cc-961d-1d67d7290cca
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Date deposited: 17 Feb 2000
Last modified: 17 Mar 2024 05:58
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Contributors
Author:
S. Kanjanachuchai
Author:
J.M. Bonar
Author:
G.J. Parker
Author:
H. Ahmed
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