---
_id: '8203'
abstract:
- lang: eng
  text: 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.
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
acknowledgement: "We acknowledge G. Burkard, V. N. Golovach, C. Kloeffel, D.Loss,
  P. Rabl, and M. Rancič ́ for helpful discussions. We\r\nfurther 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."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
- first_name: Josip
  full_name: Kukucka, Josip
  id: 3F5D8856-F248-11E8-B48F-1D18A9856A87
  last_name: Kukucka
- first_name: Lada
  full_name: Vukušić, Lada
  id: 31E9F056-F248-11E8-B48F-1D18A9856A87
  last_name: Vukušić
  orcid: 0000-0003-2424-8636
- first_name: Hannes
  full_name: Watzinger, Hannes
  id: 35DF8E50-F248-11E8-B48F-1D18A9856A87
  last_name: Watzinger
- first_name: Fei
  full_name: Gao, Fei
  last_name: Gao
- first_name: Ting
  full_name: Wang, Ting
  last_name: Wang
  orcid: 0000-0002-4619-9575
- first_name: Jian-Jun
  full_name: Zhang, Jian-Jun
  last_name: Zhang
- first_name: Karsten
  full_name: Held, Karsten
  last_name: Held
citation:
  ama: Katsaros G, Kukucka J, Vukušić L, et al. Zero field splitting of heavy-hole
    states in quantum dots. <i>Nano Letters</i>. 2020;20(7):5201-5206. doi:<a href="https://doi.org/10.1021/acs.nanolett.0c01466">10.1021/acs.nanolett.0c01466</a>
  apa: 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. <i>Nano
    Letters</i>. American Chemical Society. <a href="https://doi.org/10.1021/acs.nanolett.0c01466">https://doi.org/10.1021/acs.nanolett.0c01466</a>
  chicago: 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.” <i>Nano Letters</i>. American Chemical Society, 2020.
    <a href="https://doi.org/10.1021/acs.nanolett.0c01466">https://doi.org/10.1021/acs.nanolett.0c01466</a>.
  ieee: G. Katsaros <i>et al.</i>, “Zero field splitting of heavy-hole states in quantum
    dots,” <i>Nano Letters</i>, vol. 20, no. 7. American Chemical Society, pp. 5201–5206,
    2020.
  ista: 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.
  mla: Katsaros, Georgios, et al. “Zero Field Splitting of Heavy-Hole States in Quantum
    Dots.” <i>Nano Letters</i>, vol. 20, no. 7, American Chemical Society, 2020, pp.
    5201–06, doi:<a href="https://doi.org/10.1021/acs.nanolett.0c01466">10.1021/acs.nanolett.0c01466</a>.
  short: G. Katsaros, J. Kukucka, L. Vukušić, H. Watzinger, F. Gao, T. Wang, J.-J.
    Zhang, K. Held, Nano Letters 20 (2020) 5201–5206.
corr_author: '1'
date_created: 2020-08-06T09:25:04Z
date_published: 2020-06-01T00:00:00Z
date_updated: 2025-04-15T08:39:16Z
day: '01'
ddc:
- '530'
department:
- _id: GeKa
doi: 10.1021/acs.nanolett.0c01466
ec_funded: 1
external_id:
  isi:
  - '000548893200066'
  pmid:
  - '32479090'
file:
- access_level: open_access
  content_type: application/pdf
  creator: dernst
  date_created: 2020-08-06T09:35:37Z
  date_updated: 2020-08-06T09:35:37Z
  file_id: '8204'
  file_name: 2020_NanoLetters_Katsaros.pdf
  file_size: 3308906
  relation: main_file
  success: 1
file_date_updated: 2020-08-06T09:35:37Z
fulldoi: https://doi.org/10.1021/acs.nanolett.0c01466
has_accepted_license: '1'
intvolume: '        20'
isi: 1
issue: '7'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 5201-5206
pmid: 1
project:
- _id: 237B3DA4-32DE-11EA-91FC-C7463DDC885E
  call_identifier: FWF
  grant_number: P32235
  name: Towards scalable hut wire quantum devices
- _id: 237E5020-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862046'
  name: TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS
publication: Nano Letters
publication_identifier:
  eissn:
  - 1530-6992
  issn:
  - 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
related_material:
  record:
  - id: '7689'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Zero field splitting of heavy-hole states in quantum dots
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 20
year: '2020'
...