Graphene meets diamond: 2D spintronics probed with diamond quantum sensors
Grant number: DE170100129 | Funding period: 2017 - 2020
This project aims to understand the spintronic properties of graphene. Graphene, a ground-breaking two-dimensional material, has tremendous potential for the realisation of high-speed, low-power operation, spin-logic devices for next-generation electronics. However, for its full potential to be reached, techniques are needed to directly probe and image spins in operating devices. The project plans to exploit recently developed diamond quantum sensing technologies to characterise graphene spintronic devices. The results and methods are expected to clarify the underlying microscopic mechanisms and provide a route to design and optimise functional graphene spintronic devices.
Related publications (17)
Laser Modulation of Superconductivity in a Cryogenic Wide-field Nitrogen-Vacancy Microscope.
Scott E Lillie, David A Broadway, Nikolai Dontschuk, Sam C Scholten, Brett C Johnson, Sebastian Wolf, Stephan Rachel, Lloyd CL Hollenberg, Jean-Philippe Tetienne
We realize a cryogenic wide-field nitrogen-vacancy microscope and use it to image Abrikosov vortices and transport currents in a s..
Quantum Bath Control with Nuclear Spin State Selectivity via Pulse-Adjusted Dynamical Decoupling
JE Lang, DA Broadway, GAL White, LT Hall, A Stacey, LCL Hollenberg, TS Monteiro, J-P Tetienne
Dynamical decoupling (DD) is a powerful method for controlling arbitrary open quantum systems. In quantum spin control, DD general..
Imaging Graphene Field-Effect Transistors on Diamond Using Nitrogen-Vacancy Microscopy
Scott E Lillie, Nikolai Dontschuk, David A Broadway, Daniel L Creedon, Lloyd CL Hollenberg, Jean-Philippe Tetienne
The application of imaging techniques based on ensembles of nitrogen-vacancy (N-V) sensors in diamond to characterize electrical d..
Evidence for Primal sp(2) Defects at the Diamond Surface: Candidates for Electron Trapping and Noise Sources
Alastair Stacey, Nikolai Dontschuk, Jyh-Pin Chou, David A Broadway, Alex K Schenk, Michael J Sear, Jean-Philippe Tetienne, Alon Hoffman, Steven Prawer, Chris I Pakes, Anton Tadich, Nathalie P de Leon, Adam Gali, Lloyd CL Hollenberg
Many advanced applications of diamond materials are now being limited by unknown surface defects, including in the fields of high ..
Apparent delocalization of the current density in metallic wires observed with diamond nitrogen-vacancy magnetometry
J-P Tetienne, N Dontschuk, DA Broadway, SE Lillie, T Teraji, DA Simpson, A Stacey, LCL Hollenberg
We report on a quantitative analysis of the magnetic field generated by a continuous current running in metallic microwires fabric..
Nonvanishing effect of detuning errors in dynamical-decoupling-based quantum sensing experiments
JE Lang, T Madhavan, J-P Tetienne, DA Broadway, LT Hall, T Teraji, TS Monteiro, A Stacey, LCL Hollenberg
Characteristic dips appear in the coherence traces of a probe qubit when dynamical decoupling (DD) is applied in synchrony with th..
Magnetic noise from ultrathin abrasively deposited materials on diamond
Scott E Lillie, David A Broadway, Nikolai Dontschuk, Ali Zavabeti, David A Simpson, Tokuyuki Teraji, Torben Daeneke, Lloyd CL Hollenberg, Jean-Philippe Tetienne
Sensing techniques based on the negatively charged nitrogen-vacancy (NV) center in diamond have emerged as promising candidates to..
High precision single qubit tuning via thermo-magnetic field control
David A Broadway, Scott E Lillie, Nikolai Dontschuk, Alastair Stacey, Liam T Hall, Jean-Philippe Tetienne, Lloyd CL Hollenberg
Precise control of the resonant frequency of a spin qubit is of fundamental importance to quantum sensing protocols. We demonstrat..
Spin properties of dense near-surface ensembles of nitrogen-vacancy centers in diamond
J-P Tetienne, RW de Gille, DA Broadway, T Teraji, SE Lillie, JM McCoey, N Dontschuk, LT Hall, A Stacey, DA Simpson, LCL Hollenberg
We present a study of the spin properties of dense layers of near-surface nitrogen-vacancy (NV) centers in diamond created by nitr..
Environmentally Mediated Coherent Control of a Spin Qubit in Diamond
Scott E Lillie, David A Broadway, James DA Wood, David A Simpson, Alastair Stacey, Jean-Philippe Tetienne, Lloyd CL Hollenberg
The coherent control of spin qubits forms the basis of many applications in quantum information processing and nanoscale sensing, ..