Publications

2026

• C. C. Newsom, B. L. Green, M. E. Newton, L. B. Hughes Wyatt, A. C. Bleszynski Jayich, 200 keV energy electron irradiation of single-crystal diamond: Quantification of vacancy and nitrogen-vacancy production, Phys. Rev. B 114, 065203 (2026) [arXiv:2509.06517Link opens in a new windowLink opens in a new window]
• Hollis Williams, Alex Newman, Stuart Graham, Colin Stephen & Gavin Morley, A portable LED-based diamond magnetometer for outreach and teaching labs, American Journal of Physics 94, 489 (2026), open access.
• SM Graham, CJ Stephen, AJ Newman, AM Edmonds, ML Markham & GW Morley, High Field Diamond Magnetometry Towards Tokamak Diagnostics, arXiv:2601.13413 (2026).
• Colin J Stephen, Anton Tcholakov, Maik Icker, Stuart M Graham, Xiaoming Zhao, Robert Day, Jeanette Chattaway, T John S Dennis, Wolfgang Harneit & Gavin W Morley, High-Resolution Electron Paramagnetic Resonance, arXiv:2601.14321 (2026).

2025

• S. Tyler, J. Newland, P. Hepworth, A. Wijesekara, I. R. Gullick, M. L. Markham, M. E. Newton, B. L. Green, Extended T2 times of shallow implanted NV in chemically mechanically polished diamond, Appl. Phys. Lett. 126, 054001 (2025)
• Andrew R Kirkpatrick, Zhin Mai, Colin J Stephen, Gareth S Jones, Gavin W Morley, Martin J Booth, Patrick S Salter & Jason M Smith, Deterministic laser-writing of nitrogen-vacancy centres in high purity diamond, Materials for Quantum Technology 5, 041002 (2025), open access.
• Issam Belgacem et al, Broadband Fourier transform spectroscopy of quantum emitters photoluminescence with sub-nanosecond temporal resolution, Optica Quantum 3, 335 (2025).
• Sougato Bose, Anupam Mazumdar, Roger Penrose, Ivette Fuentes, Marko Toroš, Ron Folman, Gerard J Milburn, Myungshik Kim, Jonathan Oppenheim, Mauro Paternostro, Hendrik Ulbricht, Peter F Barker, Thomas P Purdy, MV Gurudev Dutt, Andrew A Geraci, David C Moore & Gavin W Morley, A Spin-Based Pathway to Testing the Quantum Nature of Gravity, Submission to European Strategy for Particle Physics (2025), preprint.
• AJ Newman, SM Graham, CJ Stephen, AM Edmonds, ML Markham & GW Morley, Endoscopic diamond magnetometer for cancer surgery, Physical Review Applied 24, 024029 (2025), open access. See BBC News and Physics World articles on this.
• Maabur Sow et al, Millikelvin Intracellular Nanothermometry with Nanodiamonds, Advanced Science 12, e11670 (2025), open access.
• Reza Kashtiban, Gavin W Morley, Mark E Newton & ATM Anishur Rahman, Probing the nitrogen vacancy center using the Faraday effect at room temperature, Physical Review Research 8, 013032 (2025), open access.
• SM Graham, AJ Newman, CJ Stephen, AM Edmonds, DJ Twitchen, ML Markham & GW Morley, On the Road with a Diamond Magnetometer, Diamond & Related Materials 152, 111945 (2025), preprint.

2024

• D. C. Jones, M. C. Jollands, S. Jin, S. Stewart-Barry, M. W. Dale, B. L. Green, Resolving and imaging ultra-low H concentrations in partially protonated Mg:α Al₂O₃ using FRET and the luminescence lifetime of Cr³⁺, J. Mater. Chem. C 12, 16004 (2024)
• J. Zhao, B. L. Green, B. G. Breeze, H. Yuan, T. Ardon, W. Wang, M. E. Newton, Delayed luminescence and thermoluminescence in laboratory-grown diamonds, Phys. Rev. B 108, 205203 (2024) [arXiv:2407.11787]
• S Abend et al, Terrestrial very-long-baseline atom interferometry: Workshop summary, AVS Quantum Science 6, 024701 (2024).
• Tensor gradiometry with a diamond magnetometer, AJ Newman, SM Graham, AM Edmonds, DJ Twitchen, ML Markham & GW Morley, Physical Review Applied 21, 014003 (2024), open access.
• Real-time adaptive estimation of decoherence timescales for a single qubit, Muhammad Junaid Arshad, Christiaan Bekker, Ben Haylock, Krzysztof Skrzypczak, Daniel White, Benjamin Griffiths, Joe Gore, Gavin W Morley, Patrick Salter, Jason Smith, Inbar Zohar, Amit Finkler, Yoann Altmann, Erik M Gauger, Cristian Bonato, Physical Review Applied 21, 024026 (2024), open access.

2023

• J. Zhao, B. G. Breeze, B. L. Green, M. E. Newton, Phosphorescence and donor-acceptor pair recombination in laboratory-grown diamonds, Phys. Rev. B 108, 165203 (2023) [arXiv:2306.01878]
• Long Spin Coherence and Relaxation Times in Nanodiamonds Milled from Polycrystalline ¹²C Diamond, James E March, Benjamin D Wood, Colin J Stephen, Soumen Mandal, Andrew M Edmonds, Daniel J Twitchen, Matthew L Markham, Oliver A Williams & Gavin W Morley, , Physical Review Applied 20, 044045 (2023).
• $\sqrt{\mathrm{Fiber-Coupled\; Diamond\; Magnetometry\; with\; an\; Unshielded\; Sensitivity\; of\; 30pT/\surd Hz,}}$S.M. Graham, A.T.M.A. Rahman, L. Munn, R.L. Patel, A.J. Newman, C.J. Stephen, G. Colston, A. Nikitin, A.M. Edmonds, D.J. Twitchen, M.L. Markham, and G.W. Morley (2023) Physical Review Applied, 19, 044042.
• Research campaign: Macroscopic quantum resonators (MAQRO) Rainer Kaltenbaek et al. (2023) Quantum Sci. Technol. 8 014006
• Additive GaN solid immersion lenses for enhanced photon extraction efficiency from diamond color centers, Xingrui Cheng, Nils Kolja Wessling, Saptarsi Ghosh, Andrew R Kirkpatrick, Menno J Kappers, Yashna ND Lekhai, Gavin W Morley, Rachel A Oliver, Jason M Smith, Martin D Dawson, Patrick S Salter, Michael J Strain, ACS Photonics 10, 3374 (2023), open access.

2022

• Spin dynamical decoupling for generating macroscopic superpositions of a free-falling nanodiamond B. D. Wood, S. Bose, and G. W. Morley (2022) Phys Rev A 105, 012824.
• Christopher Hardly Joseph, Georg Gramse, Emanuela Proietti, Giovanni Maria Sardi, Gavin W Morley, Ferry Kienberger, Giancarlo Bartolucci & Romolo Marcelli, Local Characterization of Ferromagnetic Resonance in Bulk and Patterned Magnetic Materials using Scanning Microwave Microscopy, IEEE Transactions on Instrumentation and Measurement 71, 1 (2022).
• BD Wood, GA Stimpson, JE March, YND Lekhai, CJ Stephen, BL Green, AC Frangeskou, L Ginés, S Mandal, OA Williams & GW Morley, Long Spin Coherence Times of Nitrogen Vacancy Centres in Milled Nanodiamonds, Physical Review B 105, 205401 (2022), preprint.
• Ivan Alonso et al, Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map, EPJ Quantum Technology 9, 30 (2022), arXiv:2201.07789.
• Yue Ma, Thomas Guff, Gavin W Morley, Igor Pikovski & MS Kim, Limits on inference of gravitational entanglement, Physical Review Research 4, 013024 (2022), open access.
• Eric Adelberger et al, Snowmass White Paper: Precision Studies of Spacetime Symmetries and Gravitational Physics, arXiv:2203.09691 (2022).
• Daniel Carney et al, Snowmass: Quantum Sensors for HEP Science -- Interferometers, Mechanics, Traps, and Clocks, arXiv:2203.07250 (2022).

2021

• Diamond Membrane Production: The Critical Role of Radicals in the Non-Contact Electrochemical Etching of sp2 Carbon. Carbon. Tully, J. J., Braxton, E., Cobb, S. J., Breeze, B. G., Markham, M., Newton, M. E., Rodriguez, P., & Macpherson, J. V. CARBON.2021.09.054 (2021).
• Spatial distribution of defects in a plastically deformed natural brown diamond Laidlaw, F. H. J., Diggle, P. L., Breeze, B. G., Dale, M. W., Fisher, D., & Beanland, R. Diamond and Related Materials, 117, 108465 (2021).
• Imaging damage in steel using a diamond magnetometer, L. Q. Zhou, R. L. Patel, A. C. Frangeskou, A. Nikitin, B. L. Green, B. G. Breeze, S. Onoda, J. Isoya, G. W. Morley Phys. Rev. Appl. 15, 024015 (2021)
• Benjamin D Wood & Gavin W Morley, Review paper: Towards a test of quantum gravity with a levitated nanodiamond containing a spin, Proc. SPIE 11881, Quantum Technology: Driving Commercialisation of an Enabling Science II, 118810P (2021), arXiv:2110.14436.
• Benjamin Griffiths, Andrew Kirkpatrick, Shannon S Nicley, Rajesh L Patel, Joanna M Zajac, Gavin W Morley, Martin J Booth, Patrick S Salter & Jason M Smith, Microscopic processes during ultra-fast laser generation of Frenkel defects in diamond, Physical Review B 104, 174303 (2021), arXiv:2105.11894.

2020

• Subnanotesla Magnetometry with a Fiber-Coupled Diamond Sensor. Patel, R. L., Zhou, L. Q., Frangeskou, A. C., Stimpson, G. A., Breeze, B. G., Nikitin, A., Dale, M. W., Nichols, E. C., Thornley, W., Green, B. L., Newton, M. E., Edmonds, A. M., Markham, M. L., Twitchen, D. J., & Morley, G. W. (2020). Physical Review Applied, 14(4), 44058.
• Doubly-charged silicon vacancy center, photochromism, and Si-N complexes in co-doped diamond B G Breeze, C J Meara, X X Wu, C P Michaels, R Gupta, P L Diggle, M W Dale, B L Cann, T Ardon, U F S D'Haenens-Johansson, I Friel, M J Rayson, P R Briddon, J P Goss, M E Newton, B L Green, Phys. Rev. B. 101, 184115, (2020).
• An Ultrafast Shakedown Reveals the Energy Landscape, Relaxation Dynamics, and Concentration of the N 3 VH 0 Defect in Diamond. Coxon, D. J. L., Staniforth, M., Breeze, B. G., Greenough, S. E., Goss, J. P., Monti, M., Lloyd-Hughes, J., Stavros, V. G., & Newton, M. E. (2020). . J. Phys. Chem. Lett, 11(16), 6677–6683.
• Nitrogen in Diamond M. N. R. Ashfold, J.P. Goss, B. L. Green, P. W. May, M. E. Newton, C. V. Peaker, Nitrogen in Diamond, Chem. Rev. 120(12) 5745 acs.chemrev.9b00518 (2020).
• Decoration of growth sector boundaries with single nitrogen vacancy centres in as-grown single crystal HPHT synthetic diamond Philip L. Diggle, Ulrika F. S. D'Haenens-Johansson, Ben L. Green, Christopher M. Welbourn, Thu Nhi Tran Thi, Andrey Katrusha, Wuyi Wang, Mark E. Newton, Phys. Rev. Mat. 4, 093402 (2020)
• Julen S Pedernales, Gavin W Morley & Martin B Plenio, Motional Dynamical Decoupling for Interferometry with Macroscopic Particles, Physical Review Letters 125, 023602 (2020), open access. The preprint version of this has extra content.
• Ryan J Marshman, Anupam Mazumdar, Gavin W Morley, Peter F Barker, Steven Hoekstra & Sougato Bose, Mesoscopic Interference for Metric and Curvature (MIMAC) & Gravitational Waves, New Journal of Physics 22, 083012 (2020), open access. Highlighted in popular press including Scientific American and Physics World.

2019

• Three-dimensional solid-state qubit arrays with long-lived spin coherence C. J. Stephen, B. L. Green, Y. N. D. Lekhai, L. Weng, P. Hill, S. Johnson, A. C. Frangeskou, P. L. Diggle, M. J. Strain, E. Gu, M. E. Newton, J. M. Smith, P. S. Salter & G. W. Morley Phys. Rev. Applied 12, 064005 (2019).
• An open-source high-frequency lock-in amplifierLink opens in a new window Stimpson, G. A., Skilbeck, M. S., Patel, R. L., Green, B. L. & Morley, G. W. Rev. Sci. Instrum. 90, 094701 (2019).
• Diamond x-ray beam diagnostic with embedded graphitic wire electrodes Bloomer, C., Rehm, G., Salter, P. & Newton, M. AIP Conference Conference Proceedings 2054, 60071 (2019).
• Laser writing of individual atomic defects in a crystal with near-unity yield Y.-C. Chen, B. Griffiths, L. Weng, S. Nicley, S. N. Ishmael, Y. Lekhai, S. Johnson, C. J. Stephen, B. L. Green, G. W. Morley, M. E. Newton, M. J. Booth, P. S. Salter, J. M. Smith, Optica, 6, 5 (2019)
• Electronic structure of the neutral silicon-vacancy center in diamond, B. L. Green, M. W. Doherty, E. Nako, N. B. Manson, U. F. S. D'Haenens-Johansson, S. D. Williams, D. J. Twitchen, M. E. Newton, Phys. Rev. B 99, 161112(R) (2019)

2018

• Production of Metal-Free Diamond Nanoparticles Laia Ginés, Soumen Mandal, David John Morgan, Ryan Lewis, Philip R Davies, Paola Borri, Gavin W Morley & Oliver A Williams, ACS Omega 3, 16099 (2018). Open access.
• Pure nanodiamonds for levitated optomechanics in vacuum A. C. Frangeskou, A. T. M. A. Rahman, L. Gines, S. Mandal, O. A. Williams, P. F. Barker, and G. W. Morley, New J. Phys. 20, 43016 (2018)
• An analytical model for the detection of levitated nanoparticles in optomechanics A. T. M. A. Rahman, A. C. Frangeskou, P. F. Barker, and G. W. Morley, Review of Scientific Instruments 89, 23109 (2018).
• Optical properties of implanted Xe color centers in diamond R. Sandstrom, L. Ke, A. Martin, Z. Wang, M. Kianinia, B. Green, W. bo Gao, and I. Aharonovich, Optics Communications 411, 182 (2018).
• Photoactivatable platinum anticancer complex can generate tryptophan radicals Claudio Vallotto, Evyenia Shaili, Huayun Shi, Jennifer S. Butler, Christopher J. Wedge, Mark E. Newton* and Peter J. Sadler, Chemical Communications (2018).

2017

• Laser writing of coherent colour centres in diamond Y. C. Chen, P. S. Salter, S. Knauer, L. Weng, A. C. Frangeskou, C. J. Stephen, S. N. Ishmael, P. R. Dolan, S. Johnson, B. L. Green, G. W. Morley, M. E. Newton, J. G. Rarity, M. J. Booth, and J. M. Smith, Nature Photonics 11, 77 (2017).
• Spin Entanglement Witness for Quantum Gravity S. Bose, A. Mazumdar, G. W. Morley, H. Ulbricht, M. Toroš, M. Paternostro, A. A. Geraci, P. F. Barker, M. S. Kim, and G. Milburn, Physical Review Letters 119, 240401 (2017).
• All-optical hyperpolarization of electron and nuclear spins in diamond B. L. Green, B. G. Breeze, G. J. Rees, J. V. Hanna, J.-P. Chou, V. Ivády, A. Gali, and M. E. Newton, Physical Review B 96, 054101 (2017).
• Neutral Silicon-Vacancy Center in Diamond: Spin Polarization and Lifetimes B. L. Green, S. Mottishaw, B. G. Breeze, A. M. Edmonds, U. F. S. D’Haenens-Johansson, M. W. Doherty, S. D. Williams, D. J. Twitchen, and M. E. Newton, Physical Review Letters 119, 096402 (2017).
• Medical applications of diamond magnetometry: commercial viability M. W. Dale and G. W. Morley, arXiv:1705.01994 (2017).
• Electron paramagnetic resonance and photochromism of N₃V⁰ in diamond B. L. Green, B. G. Breeze, and M. E. Newton, Journal of Physics Condensed Matter 29, 225701 (2017).
• Laser spectroscopy of NV^- and NV⁰ colour centres in synthetic diamond E. Fraczek, V. G. Savitski, M. Dale, B. G. Breeze, P. Diggle, M. Markham, A. Bennett, H. Dhillon, M. E. Newton, and A. J. Kemp, Optical Materials Express 7, 2571 (2017).
• An Electron Paramagnetic Resonance (EPR) spectroscopy study on the γ-irradiation sterilization of the pharmaceutical excipient l -histidine: Regeneration of the radicals in solution C. Vallotto, H. E. Williams, D. M. Murphy, Z. J. Ayres, R. Edge, M. E. Newton, and C. J. Wedge, International Journal of Pharmaceutics 533, 315 (2017).

2016

• Tolerance in the Ramsey interference of a trapped nanodiamond C. Wan, M. Scala, S. Bose, A. C. Frangeskou, A. A. Rahman, G. W. Morley, P. F. Barker, and M. S. Kim, Physical Review A 93, 43852 (2016).
• Burning and graphitization of optically levitated nanodiamonds in vacuum A. T. M. A. Rahman, A. C. Frangeskou, M. S. Kim, S. Bose, G. W. Morley, and P. F. Barker, Scientific Reports 6, 21633 (2016).
• Free Nano-Object Ramsey Interferometry for Large Quantum Superpositions C. Wan, M. Scala, G. W. Morley, A. A. Rahman, H. Ulbricht, J. Bateman, P. F. Barker, S. Bose, and M. S. Kim, Physical Review Letters 117, 143003 (2016).
• Optically generated hyperpolarization for sensitivity enhancement in solution-state NMR spectroscopy M. W. Dale and C. J. Wedge, Chem. Commun. 52, 13221 (2016).
• Intermittent-contact Scanning Electrochemical Microscopy (IC-SECM) as a Quantitative Probe of Defects in Single Crystal Boron Doped Diamond Electrodes L. I. Tomlinson, H. V. Patten, B. L. Green, J. Iacobini, K. E. Meadows, K. McKelvey, P. R. Unwin, M. E. Newton, and J. V. Macpherson, Electroanalysis 28, 2297 (2016).
• Quantitative measurements in electrochemical electron paramagnetic resonance M. A. Tamski, M. W. Dale, B. G. Breeze, J. V. Macpherson, P. R. Unwin, and M. E. Newton, Electrochimica Acta 213, (2016).

2015

• Electron paramagnetic resonance of the N2V defect in 15N-doped synthetic diamond B. L. Green, M. W. Dale, M. E. Newton, and D. Fisher, Physical Review B 92, 165204 (2015).
• Electrochemical electron paramagnetic resonance utilizing loop gap resonators and micro-electrochemical cells M. A. Tamski, J. V. Macpherson, P. R. Unwin, and M. E. Newton, Physical Chemistry Chemical Physics 17, 23438 (2015).

2014

• Towards spintronic quantum technologies with dopants in silicon G. W. Morley, in SPR Electron Paramagn. Reson., edited by RSC (2014), pp. 62–76.

2013

• Quantum control of hybrid nuclear-electronic qubits G. W. Morley, P. Lueders, M. Hamed Mohammady, S. J. Balian, G. Aeppli, C. W. M. Kay, W. M. Witzel, G. Jeschke, and T. S. Monteiro, Nature Materials 12, 103 (2013).
• Matter-Wave Interferometry of a Levitated Thermal Nano-Oscillator Induced and Probed by a Spin M. Scala, M. S. Kim, G. W. Morley, P. F. Barker, and S. Bose, Physical Review Letters 111, 180403 (2013).
• Potential for spin-based information processing in a thin-film molecular semiconductor M. Warner, S. Din, I. S. Tupitsyn, G. W. Morley, A. M. Stoneham, J. A. Gardener, Z. Wu, A. J. Fisher, S. Heutz, C. W. M. Kay, and G. Aeppli, Nature 503, 504 (2013).
• Colour-causing defects and their related optoelectronic transitions in single crystal CVD diamond R. U. A. Khan, B. L. Cann, P. M. Martineau, J. Samartseva, J. J. P. Freeth, S. J. Sibley, C. B. Hartland, M. E. Newton, H. K. Dhillon, and D. J. Twitchen, Journal of Physics Condensed Matter 25, (2013).
• X-band rapid-scan EPR of samples with long electron spin relaxation times: a comparison of continuous wave, pulse and rapid-scan EPR D. G. Mitchell, M. Tseitlin, R. W. Quine, V. Meyer, M. E. Newton, A. Schnegg, B. George, S. S. Eaton, and G. R. Eaton, Molecular Physics 111, 2664 (2013).
• HR Thomas, SP Day, WE Woodruff, C Vallés, RJ Young, IA Kinloch, GW Morley, JV Hanna, NR Wilson & JP Rourke, Deoxygenation of Graphene Oxide: Reduction or Cleaning?, Chemistry of Materials 25, 3580 (2013). pdf

2012

• Measuring central-spin interaction with a spin bath by pulsed ENDOR: Towards suppression of spin diffusion decoherence S. J. Balian, M. B. A. Kunze, M. H. Mohammady, G. W. Morley, W. M. Witzel, C. W. M. Kay, and T. S. Monteiro, Physical Review B 86, 104428 (2012).
• Spin-Based Diagnostic of Nanostructure in Copper Phthalocyanine-C₆₀ Solar Cell Blends M. Warner, S. Mauthoor, S. Felton, W. Wu, J. A. Gardener, S. Din, D. Klose, G. W. Morley, A. M. Stoneham, A. J. Fisher, G. Aeppli, C. W. M. Kay, and S. Heutz, ACS Nano 6, 10808 (2012).
• Production of oriented nitrogen-vacancy color centers in synthetic diamond A. M. Edmonds, U. F. S. D’Haenens-Johansson, R. J. Cruddace, M. E. Newton, K.-M. C. Fu, C. Santori, R. G. Beausoleil, D. J. Twitchen, and M. L. Markham, Physical Review B 86, 35201 (2012).
• CVD Synthetic Diamonds from Gemesis Corp W. Wang, U. F. S. D’Haenens-Johansson, P. Johnson, K. S. Moe, E. Emerson, M. E. Newton, and T. M. Moses, Gems & Gemology 48, 80 (2012).
• MH Mohammady, GW Morley, A Nazir & TS Monteiro, Analysis of quantum coherence in bismuth-doped silicon: A system of strongly coupled spin qubits, Physical Review B 85, 094404 (2012). pdf
• DR McCamey, C Boehme, GW Morley & J van Tol, Electrically detected spin echoes of donor nuclei in silicon, Physical Review B 85, 073201 (2012). pdf