David Jamieson

High-resolution Rutherford backscattering spectrometry with an optimised solid-state detector

SG Robson, AM Jakob, D Holmes, SQ Lim, BC Johnson, DN Jamieson

Journal article  |  2021  |  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Rutherford Backscattering Spectrometry (RBS) is a powerful ion beam analysis technique in frequent use within materials science. T..

Conditional quantum operation of two exchange-coupled single-donor spin qubits in a MOS-compatible silicon device

Mateusz T Madzik, Arne Laucht, Fay E Hudson, Alexander M Jakob, Brett C Johnson, David N Jamieson, Kohei M Itoh, Andrew S Dzurak, Andrea Morello

Journal article  |  2021  |  NATURE COMMUNICATIONS

Silicon nanoelectronic devices can host single-qubit quantum logic operations with fidelity better than 99.9%. For the spins of an..

Isotopic enrichment of silicon by high fluence Si-28(-) ion implantation

D Holmes, BC Johnson, C Chua, B Voisin, S Kocsis, S Rubanov, SG Robson, JC McCallum, DR McCamey, S Rogge, DN Jamieson

Journal article  |  2021  |  PHYSICAL REVIEW MATERIALS

Spins in the "semiconductor vacuum"of silicon-28 (Si28) are suitable qubit candidates due to their long coherence times. An isotop..

Donor Spins in Silicon for Quantum Technologies

Andrea Morello, Jarryd J Pla, Patrice Bertet, David N Jamieson

Journal article  |  2020  |  ADVANCED QUANTUM TECHNOLOGIES

Dopant atoms are ubiquitous in semiconductor technologies, providing the tailored electronic properties that underpin the modern d..

Controllable freezing of the nuclear spin bath in a single-atom spin qubit

Mateusz T Madzik, Thaddeus D Ladd, Fay E Hudson, Kohei M Itoh, Alexander M Jakob, Brett C Johnson, Jeffrey C McCallum, David N Jamieson, Andrew S Dzurak, Arne Laucht, Andrea Morello

Journal article  |  2020  |  SCIENCE ADVANCES

The quantum coherence and gate fidelity of electron spin qubits in semiconductors are often limited by nuclear spin fluctuations. ..

Activation and electron spin resonance of near-surface implanted bismuth donors in silicon

D Holmes, WIL Lawrie, BC Johnson, A Asadpoordarvish, JC McCallum, DR McCamey, DN Jamieson

Journal article  |  2019  |  PHYSICAL REVIEW MATERIALS

The bismuth (Bi) substitutional donor in silicon (Si) is an attractive qubit candidate for quantum computing proposals due to its ..

PIXE imaging of hyperaccumulator plants using the Maia detector array

Jamie S Laird, Chris G Ryan, Robin A Kirkham, Antony van der Ent, David N Jamieson

Journal article  |  2019  |  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

With its large solid angle and an input count rate beyond 10 M/s, the PIXE Maia system, recently commissioned on the CSIRO-MARC NM..

Investigation of intrinsic aberrations introduced by the fringing field in the proposed 300 MeV proton microprobe in Harbin

Yanxin Dou, David N Jamieson, Zhengnan Han, Jianli Liu, Liyi Li

Journal article  |  2019  |  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

In Harbin, the 300 MeV proton microprobe system with long-length quadrupole lenses, as a component of the Space Environment Simula..

High definition large area mapping of geological samples using a Maia detector array in the Nuclear Microprobe

JS Laird, CG Ryan, R Kirkham, S Hu, DP Siddons, PA Dunn, A Kuczewski, D Parry, M Jensen, F Rudzik, R Szymanski, R Dodanwela, S Hogan, G Moorhead, P Davey, DN Jamieson

Journal article  |  2019  |  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

A Maia detector array has been adapted and installed on the CSIRO-MARC Nuclear Microprobe. Maia uses an annular array of 384 silic..

Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices

Stefanie B Tenberg, Serwan Asaad, Mateusz T Madzik, Mark A Johnson, Benjamin Joecker, Arne Laucht, Fay E Hudson, Kohei M Itoh, A Malwin Jakob, Brett C Johnson, David N Jamieson, Jeffrey C McCallum, Andrew S Dzurak, Robert Joynt, Andrea Morello

Journal article  |  2019  |  PHYSICAL REVIEW B

We analyze the electron spin relaxation rate 1/T1 of individual ion-implanted P31 donors in a large set of metal-oxide-semiconduct..