280 citations · 1.5k across the 56 of their papers we have counts for
32 papers · 1 filter
Persistence and emergence of quantum defects through pressure-induced phase changes
Alexander J Healey, Alan Salek, Christopher T-K Lew +15
Extreme pressures can transform materials and their properties, but probing these in-situ is made challenging by the small sample volumes and access requirements demanded by diamon…
Magnetic Communication with an Acoustically Actuated Magnetoelectric Resonator and a Quantum Diamond Magnetometer
Christopher T. -K. Lew, Andrew D. M. Charles, Brant C. Gibson +2
Wireless communication via propagating magnetic fields is a communication modality that has recently garnered significant interest for short-to-medium range communication in conduc…
Optical spin defect pairs in cubic boron nitride
Josiah E. Hsi, Islay O. Robertson, Abhijit Biswas +9
Room-temperature optically active solid-state spin defects are widely known to be useful in quantum sensing applications, however, only a select range of materials have been found…
Real-time Amplitude and Phase Estimation of AC Fields with Diamond Spins
Christopher T. -K. Lew, Samuel A. Wilkinson, Nicholas Gillespie +3
Nitrogen-vacancy centers in diamond have been shown to be capable of detecting AC magnetic fields with high sensitivity, spectral resolution, and spatial resolution. However, most…
Omnidirectional magnetic imaging of magnetic anisotropy and phase transitions
Alexander J Healey, Kaijian Xing, Weiyao Zhao +7
Micron scale imaging of magnetic fields is an important tool for understanding the evolution of magnetism through phase transitions and as a result of interactions inside of hetero…
Spin-dependent photoluminescence in carbon-based quantum dots
Erin S. Grant, Joseph F. Olorunyomi, Sam C. Scholten +12
The ability to modulate the photoluminescence (PL) of nanomaterials via spin-related effects is vital for many emerging quantum technologies, with nanoscale quantum sensing and ima…
Self-assembled fluorescent nanodiamond layers for quantum imaging
Katherine Chea, Erin S. Grant, Kevin J. Rietwyk +6
The nitrogen-vacancy (NV) center in diamond is emerging as a powerful tool for imaging magnetic and electric signals at the microscale and below. However, most imaging demonstratio…
Reconstruction of non-trivial magnetization textures from magnetic field images using neural networks
David A. Broadway, Mykhailo Flaks, Adrien E. E. Dubois +1
Spatial imaging of magnetic stray fields from magnetic materials is a useful tool for identifying the underlying magnetic configurations of the material. However, transforming the…
Imaging magnetic switching in orthogonally twisted stacks of a van der Waals antiferromagnet
Alexander J Healey, Cheng Tan, Boris Gross +9
Stacking van der Waals magnets holds promise for creating new hybrid materials with properties that do not exist in bulk materials. Here we investigate orthogonally twisted stacks…
Radiofrequency receiver based on isotropic solid-state spins
Islay O. Robertson, Brett C. Johnson, Giannis Thalassinos +5
Optically addressable solid-state spins have been proposed as robust radiofrequency (RF)-optical transducers sensitive to a specific RF frequency tuned by an external static magnet…
Violet to near-infrared optical addressing of spin pairs in hexagonal boron nitride
Priya Singh, Islay O. Robertson, Sam C. Scholten +9
Optically addressable solid-state spins are an important platform for practical quantum technologies. Van der Waals material hexagonal boron nitride (hBN) is a promising host as it…
Imaging strain-controlled magnetic reversal in thin CrSBr
Kousik Bagani, Andriani Vervelaki, Daniel Jetter +9
Two-dimensional materials are extraordinarily sensitive to external stimuli, making them ideal for studying fundamental properties and for engineering devices with new functionalit…
Towards high spatial resolution magnetic imaging with a compact practical quantum diamond microscope
Kevin J. Rietwyk, Alex Shaji, Islay O. Robertson +6
Widefield quantum diamond microscopy is a powerful technique for imaging magnetic fields with high sensitivity and spatial resolution. However, current methods to approach the ulti…
A charge transfer mechanism for optically addressable solid-state spin pairs
Islay O. Robertson, Benjamin Whitefield, Sam C. Scholten +9
Optically detected magnetic resonance (ODMR) with no resolvable zero-field splitting has been observed from emitters in hexagonal boron nitride across a broad range of wavelengths,…
Optimisation of electron irradiation for creating spin ensembles in hexagonal boron nitride
Alexander J Healey, Priya Singh, Islay O Robertson +9
Boron vacancy centre () ensembles in hexagonal boron nitride (hBN) have attracted recent interest for their potential as two-dimensional solid-state quantum sensors. I…
Optimized Current Density Reconstruction from Widefield Quantum Diamond Magnetic Field Maps
Siddhant Midha, Madhur Parashar, Anuj Bathla +3
Quantum Diamond Microscopy using Nitrogen-Vacancy (NV) defects in diamond crystals has enabled the magnetic field imaging of a wide variety of nanoscale current profiles. Intimatel…
Current Induced Hidden States in Josephson Junctions
Shaowen Chen, Seunghyun Park, Uri Vool +8
Josephson junctions enable dissipation-less electrical current through metals and insulators below a critical current. Despite being central to quantum technology based on supercon…
Nanoscale magnetism and magnetic phase transitions in atomically thin CrSBr
Märta A. Tschudin, David A. Broadway, Patrick Reiser +13
Since their first observation in 2017, atomically thin van der Waals (vdW) magnets have attracted significant fundamental, and application-driven attention. However, their low orde…
Multi-species optically addressable spin defects in a van der Waals material
Sam C. Scholten, Priya Singh, Alexander J. Healey +11
Optically addressable spin defects hosted in two-dimensional van der Waals materials represent a new frontier for quantum technologies, promising to lead to a new class of ultrathi…
Temperature Dependent Photophysics of Single NV Centers in Diamond
Jodok Happacher, Juanita Bocquel, Hossein T. Dinani +5
We present a comprehensive study of the temperature and magnetic-field dependent photoluminescence (PL) of individual NV centers in diamond, spanning the temperature-range from cry…
Proximity Induced Chiral Quantum Light Generation in Strain-Engineered WSe2/NiPS3 Heterostructures
Xiangzhi Li, Andrew C. Jones, Junho Choi +7
Quantum light emitters (QEs) capable of generating single photons of well-defined circular polarization could enable non-reciprocal single photon devices and deterministic spin-pho…
Low temperature photo-physics of single NV centers in diamond
Jodok Happacher, David Broadway, Patrick Reiser +9
We investigate the magnetic field dependent photo-physics of individual Nitrogen-Vacancy (NV) color centers in diamond under cryogenic conditions. At distinct magnetic fields, we o…
Imaging domain reversal in an ultrathin van der Waals ferromagnet
David A. Broadway, Sam C. Scholten, Cheng Tan +12
The recent isolation of two-dimensional van der Waals magnetic materials has uncovered rich physics that often differs from the magnetic behaviour of their bulk counterparts. Howev…
Imaging graphene field-effect transistors on diamond using nitrogen-vacancy microscopy
Scott E. Lillie, Nikolai Dontschuk, David A. Broadway +3
The application of imaging techniques based on ensembles of nitrogen-vacancy (NV) sensors in diamond to characterise electrical devices has been proposed, but the compatibility of…