Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/104360
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Probing the quantum states of a single atom transistor at microwave frequencies |
Author: | Tettamanzi, G. Hile, S. House, M. Fuechsle, M. Rogge, S. Simmons, M. |
Citation: | ACS Nano, 2017; 11(3):2444-2451 |
Publisher: | American Chemical Society |
Issue Date: | 2017 |
ISSN: | 1936-0851 1936-086X |
Statement of Responsibility: | Giuseppe Carlo Tettamanzi, Samuel James Hile, Matthew Gregory House, Martin Fuechsle, Sven Rogge, and Michelle Y. Simmons |
Abstract: | The ability to apply gigahertz frequencies to control the quantum state of a single P atom is an essential requirement for the fast gate pulsing needed for qubit control in donor-based silicon quantum computation. Here, we demonstrate this with nanosecond accuracy in an all epitaxial single atom transistor by applying excitation signals at frequencies up to ≈13 GHz to heavily phosphorus-doped silicon leads. These measurements allow the differentiation between the excited states of the single atom and the density of states in the one-dimensional leads. Our pulse spectroscopy experiments confirm the presence of an excited state at an energy ≈9 meV, consistent with the first excited state of a single P donor in silicon. The relaxation rate of this first excited state to the ground state is estimated to be larger than 2.5 GHz, consistent with theoretical predictions. These results represent a systematic investigation of how an atomically precise single atom transistor device behaves under radio frequency excitations. |
Keywords: | Silicon; single atom transistor; phosphorus; monolayer-doped electrodes; pulse spectroscopy; relaxation rates |
Rights: | Copyright © 2016 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes |
DOI: | 10.1021/acsnano.6b06362 |
Grant ID: | http://purl.org/au-research/grants/arc/DE120100702 |
Published version: | http://dx.doi.org/10.1021/acsnano.6b06362 |
Appears in Collections: | Aurora harvest 3 IPAS publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_104360.pdf | Published version | 3.98 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.