Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session B07: Electron and Hole Based Spin Qubits in Heterostructures
11:15 AM–2:03 PM,
Monday, March 2, 2020
Room: 102
Sponsoring
Unit:
DQI
Chair: Manuel Rispler, Delft University of Technology
Abstract: B07.00002 : Electric control of the single hole g-factor by 400% in a silicon MOS quantum dot.
Presenter:
Scott Liles
(Univ of New South Wales)
Authors:
Scott Liles
(Univ of New South Wales)
Frederico Martins
(Univ of New South Wales)
Dmitry Miserev
(University of Basel)
Ian Thorvaldson
(Univ of New South Wales)
Matthew Rendell
(Univ of New South Wales)
Fay E. Hudson
(Univ of New South Wales)
Menno Veldhorst
(University of Twente)
Oleg Sushkov
(Univ of New South Wales)
Andrew Steven Dzurak
(Univ of New South Wales)
Alex Hamilton
(Univ of New South Wales)
In this work we confine a single hole in a known orbital state [2] and study the Lande g-tensor using a 3D vector magnet. We compare the g-tensor for different confinement profiles and find the g-tensor can be strongly modulated and even rotated by up to 30 degrees. These results show that the anisotropy of the single hole g-tensor is due to symmetries in the tunable electric confinement. This tunability can be harnessed for further use of holes in spin qubit applications.
[1] C. Kloeffel et al., Phys. Rev. B 88, 241405 (2013)
[2] S. D. Liles et al., Nature Communications 9 (2018)
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