NDLI: Spin-dependent transport in silicon/silicon-germanium quantum dots

Content Provider	IEEE Xplore Digital Library
Author	Eriksson, M.A.
Copyright Year	2008
Description	Author affiliation: Dept. of Phys., Univ. of Wisconsin-Madison, Madison, WI, USA (Eriksson, M.A.)
Abstract	It is intriguing that silicon, the material at the heart of modem classical electronics, also has properties that are well suited to quantum electronics. These properties include weak spin-orbit coupling and the existence of zero-nuclear spin isotopes. This synergy between quantum and classical properties offers the possibility that silicon quantum dots potentially could be used as quantum bits, if high-quality, extremely stable devices can be fabricated and measured. In this talk, we will present data demonstrating silicon/silicon-germanium quantum dots containing individual electrons. Single-electron occupation is confirmed through the use of integrated charge sensing. We will also present measurements of Si/SiGe double quantum dots, in which we have recently observed Pauli spin blockade a¿¿¿ the suppression of transport current through a double quantum dot due to long lived spin states. Reversing the flow of current leads to a new effect in which long spin lifetimes enhance, rather than suppress, the flow of current through the double dot.
Starting Page	1
Ending Page	2
File Size	106992
Page Count	2
File Format	PDF
ISBN	9781424420711
DOI	10.1109/SNW.2008.5418452
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heart Current measurement Germanium silicon alloys Quantum dots Modems Isotopes Physics Silicon germanium Electrons
Content Type	Text
Resource Type	Article

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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