Workshops & talks
How to find us
QED group December 2012 (Photo: Mike Gal)
The QED group
The Quantum Electronic Devices group is part of the
Department in UNSW's School
of Physics in the heart of Sydney. Our research is focussed on studying
the fundamental properties of low dimensional systems realised in advanced
semiconductor devices, and developing new organic semiconductor and superconducting
- 19 February 2014
- Another theory paper, in collaboration with colleagues
in Italy, has appeared in Physical Review B Rapid Communications: Excitonic
superfluidity and screening in electron-hole bilayer systems, by
Perali, Neilson and Hamilton. The calculations show that electron-hole
superfluidity can be achieved in double bilayer graphene devices, and
answers a longstanding question about the suppression of superfluid
pairing by screening (and vice versa).
- 10 February 2014
- Welcome to new Honours student Scott Liles.
- 7 February 2014
- Congratulations to Ashwin Srinivasan for winning
a best poster prize at the 2014 Wagga Wagga meeting in Waiheke Island.
- 4 February 2014
- Alex, Ashwin and LaReine are off to Waiheke island
in New Zealand for the 2014 Wagga Wagga meeting, where LaReine is going
to talk about her recent work on quantum dots.
- 3 February 2014
- Oleh is off to Adelaide for the 2014 ICONN conference,
where he is giving a talk on Hole Landau Level Spin Diodes.
- 7 January 2014
- Congratulations to Sarah, Andrew, Zach and Pat -
their paper showing that high frequency measurements of undoped quantum
dots are possible, despite what lumped circuit models predict, has just
appeared in Applid Physics Letters:
S. J. MacLeod, A. M. See, Z. K. Keane, P. Scriven, A. P. Micolich, M.
Aagesen, P. E. Lindelof and A. R. Hamilton, Radio-frequency
reflectometry on an undoped AlGaAs/GaAs single electron transistor,
Appl. Phys. Lett. 104, 012114 (2014). It's also available on the arxiv
- 25-29 November 2013
- The School of Physics is hosting the 2013
Gordon Godfrey Workshop on Spins and Strong Correlations.
- 18 November 2013
- Prof. Sir Michael Pepper from University College
London is visiting for 2 weeks.
- 11 November 2013
- Prof. Marco Polini, NEST, Istituto Nanoscienze-CNR,
Pisa, Italy, is visiting the group for 3 weeks.
- 17 October 2013
- Congratulations to Andrew See - his paper studying
suppression of ground state transport in a GaAs induced n-type quantum
dot has been accepted for publication in the Journal of Physics: Condensed
Matter ("A study of transport
suppression in an undoped AlGaAs/GaAs single-electron transistor"
by A. M. See, O. Klochan, A. P. Micolich, M. Aagesen, P. E. Lindelof
and A. R. Hamilton).
- 8 November 2013
- Dr. Oleh Klochan has won an ARC Discovery Early
Career Fellowship to study advanced nanostructured devices - way to
go Oleh! In addition our collaboration with researchers in Electrical
Engineering at UNSW, as well as colleagues at Monash and LaTrobe, was
awarded a $560,000 Linkage Infrastructure grant to set up a scanning
gate microscope facility.
- 8 October 2013
- Congratulations to Roy Li - his paper reporting
the first silicon hole quantum dot compatible with conventional MOS
technology has been accepted for publication in Applied Physics Letters
("Single Hole Transport
in a Silicon Metal-Oxide-Semiconductor Quantum Dot").
- 28 August 2013
- Welcome to new PhD student Elizabeth Marcellina.
- 1-5 July 2013
- Daisy, Oleh, Roy and Alex are all presenting work
at the 20th International Conference on Electronic Properties of Two-Dimensional
Systems (EP2DS-20) in the rather pretty town of Wroclaw, Poland. Alex's
talk on compressibility studies of the "0.7 anomaly" in one-dimensional
quantum wires was apparently listed as one of the conference highlights.
- 17 May 2013
- Congratulations to Daisy Wang on getting her paper
accepted into Physical Review B. Daisy has shown that you can try to
remove disorder from ultra-clean devices, but there's no such thing
as a free lunch:
Influence of surface states on quantum and transport lifetimes in
high-quality undoped heterostructures D. Q. Wang, J. C. H. Chen,
O. Klochan, K. Das Gupta, D. Reuter, A.D. Wieck, D. A. Ritchie, and
A. R. Hamilton.
- 15 May 2013
- Welcome to PhD student Shun-Tsung Lo, visiting from
Prof. Liang's group at the National Taiwan University. Shun-Tsung will
be working with Oleh Klochan for the next 7 months on transport in atomically
- 14 May 2013
- Congratulations to Oleh Klochan - his latest paper
on the Kondo effect in hole quantum dots has just been published as
a Rapid Communication in Physical Review B. The paper is a result
of a really nice collaboration Oleh has set up with theorists in Germany,
to compare experimental and theoretical finite temperature scaling of
the zero bias conductance peak. The preprint is available here:
Scaling of the Kondo zero-bias peak in a hole quantum dot at finite
temperatures, by O. Klochan, A. P. Micolich, A. R. Hamilton, D.
Reuter, A. D. Wieck, F. Reininghaus, M. Pletyukhov, H. Schoeller.
- 11 April 2013
- A collaboration between the QED group and Andrew
Dzurak's group in ANFF has demonstrated the first silicon single hole
transistor using standard CMOS technology. The paper, "Single
Hole Transport in a Silicon Metal-Oxide-Semiconductor Quantum Dot"
by Roy Li, Fay Hudson, Andrew Dzurak and Alex Hamilton is available
on the preprint archive.
- 7 April 2013
- Andrew See is off to Italy, to attend the 2013 Capri
Spring School on Transport in Nanostructures.
- 6 March 2013
- Another paper in Physical Review Letters, this time
with our collaborators in Italy. Our prediction of artificially engineered
superfluidity of electron-hole pairs in graphene samples has just been
accepted for publication. The preprint is available here: High
Temperature Superfluidity in Double Bilayer Graphene, by Andrea
Perali, David Neilson, and Alex Hamilton.
- 5 March 2013
- Congratulations to Oleh Klochan and our collaborators
in Cambridge: the paper "Ultra-shallow
quantum dots in an undoped GaAs/AlGaAs 2DEG"
by W. Y. Mak, F. Sfigakis, K. Das Gupta, O. Klochan, H. E. Beere, I.
Farrer, J. P. Griffiths, G. A. C. Jones, A. R. Hamilton, and D. A. Ritchie
has just been accepted for publication in Applied Physics Letters.
- 15 February 2013
- Welcome to new Honours student Matthew Rendell.
- 21 January 2013
- Mark Edmonds, from LaTrobe University, is visiting
the QED group once more.
- Older news