Zero field splitting of heavy-hole states in quantum dots
Katsaros G, Kukucka J, Vukušić L, Watzinger H, Gao F, Wang T, Zhang J-J, Held K. 2020. Zero field splitting of heavy-hole states in quantum dots. Nano Letters. 20(7), 5201–5206.
Download
Journal Article
| Published
| English
Scopus indexed
Author
Katsaros, GeorgiosISTA ;
Kukucka, JosipISTA;
Vukušić, LadaISTA ;
Watzinger, HannesISTA;
Gao, Fei;
Wang, Ting ;
Zhang, Jian-Jun;
Held, Karsten
Department
Abstract
Using inelastic cotunneling spectroscopy we observe a zero field splitting within the spin triplet manifold of Ge hut wire quantum dots. The states with spin ±1 in the confinement direction are energetically favored by up to 55 μeV compared to the spin 0 triplet state because of the strong spin–orbit coupling. The reported effect should be observable in a broad class of strongly confined hole quantum-dot systems and might need to be considered when operating hole spin qubits.
Publishing Year
Date Published
2020-06-01
Journal Title
Nano Letters
Acknowledgement
We acknowledge G. Burkard, V. N. Golovach, C. Kloeffel, D.Loss, P. Rabl, and M. Rancič ́ for helpful discussions. We
further acknowledge T. Adletzberger, J. Aguilera, T. Asenov, S. Bagiante, T. Menner, L. Shafeek, P. Taus, P. Traunmüller, and D. Waldhausl for their invaluable assistance. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility, by the FWF-P 32235 project, by the National Key R&D Program of China (2016YFA0301701, 2016YFA0300600), and by the European Union’s Horizon 2020 research and innovation program under grant agreement no. 862046. All data of this publication are available at 10.15479/AT:ISTA:7689.
Acknowledged SSUs
Volume
20
Issue
7
Page
5201-5206
ISSN
eISSN
IST-REx-ID
Cite this
Katsaros G, Kukucka J, Vukušić L, et al. Zero field splitting of heavy-hole states in quantum dots. Nano Letters. 2020;20(7):5201-5206. doi:10.1021/acs.nanolett.0c01466
Katsaros, G., Kukucka, J., Vukušić, L., Watzinger, H., Gao, F., Wang, T., … Held, K. (2020). Zero field splitting of heavy-hole states in quantum dots. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.0c01466
Katsaros, Georgios, Josip Kukucka, Lada Vukušić, Hannes Watzinger, Fei Gao, Ting Wang, Jian-Jun Zhang, and Karsten Held. “Zero Field Splitting of Heavy-Hole States in Quantum Dots.” Nano Letters. American Chemical Society, 2020. https://doi.org/10.1021/acs.nanolett.0c01466.
G. Katsaros et al., “Zero field splitting of heavy-hole states in quantum dots,” Nano Letters, vol. 20, no. 7. American Chemical Society, pp. 5201–5206, 2020.
Katsaros G, Kukucka J, Vukušić L, Watzinger H, Gao F, Wang T, Zhang J-J, Held K. 2020. Zero field splitting of heavy-hole states in quantum dots. Nano Letters. 20(7), 5201–5206.
Katsaros, Georgios, et al. “Zero Field Splitting of Heavy-Hole States in Quantum Dots.” Nano Letters, vol. 20, no. 7, American Chemical Society, 2020, pp. 5201–06, doi:10.1021/acs.nanolett.0c01466.
All files available under the following license(s):
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0):
Main File(s)
File Name
2020_NanoLetters_Katsaros.pdf
3.31 MB
Access Level
Open Access
Date Uploaded
2020-08-06
Material in ISTA:
Research Data
Export
Marked PublicationsOpen Data ISTA Research Explorer
Web of Science
View record in Web of Science®Sources
PMID: 32479090
PubMed | Europe PMC