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Dr Daniel A. Mayoh

My Research Profile


In 2015 I joined the Superconductivity and Magnetism group at the University of Warwick as a postgraduate research student where I undertook my PhD under the supervision of Prof. Martin Lees. I completed my MPhys Physics degree at the University of St Andrews in 2015.

I rejoined the Superconductivity and Magnetism group at the University of Warwick in the summer of 2019 as a research fellow, where I work with Prof. Geetha Balakrishnan, as a part of The Skyrmion Project.

Research Interests

My post doctoral research focuses on skyrmionic materials. In particular the synthesis and characterisation of single-crystal samples that host skyrmions or exotic magnetic spin textures. I utilised a large range of crystal growth techniques including chemical vapour transport, Bridgman technique, self-flux method, optical floating zone and the Czochralski technique. The investigation of the physics of all the materials that I produce at Warwick involves a wide range of techniques, including in-house magnetic, thermodynamic and transport measurements, as well as the use of central facilities using X-ray diffraction, neutron scattering and muon spectroscopy techniques.

During my PhD, my research was focused on noncentrosymmetric superconducting systems. In particular, I am interested in superconductors where time-reversal symmetry breaking is also observed. My work involved the synthesis of high-quality polycrystalline and single-crystal samples that can then be characterised using a variety of low-temperature thermodynamic, transport and magnetisation measurements. I also used international central facilities to carry neutron scattering, muon spectroscopy, and high magnetic field experiments. We primarily used muon spin rotation and relaxation techniques to look for unconventional superconducting states in our compounds.

A copy of my PhD thesis can be found through the following link: Experimental studies of noncentrosymmetric superconductorsLink opens in a new window

Publication Highlights:

A full and up-to-date list of all my publications (including number of citations) can be found by visiting the databases linked to in the panel on the right.

D. A. Mayoh, J. Bouaziz, A. E. Hall, J. B. Staunton, M. R. Lees, and G. Balakrishnan, Giant topological and planar Hall effect in Cr1/3NbS2, Physical Review Research 4, 013134 (2022).Link opens in a new window

D. G. C. Jonas, P. K. Biswas, A. D. Hillier, D. A. Mayoh, and M.R Lees, Quantum muon diffusion and the preservation of time-reversal symmetry in the superconducting state of type-I rhenium, Physical Review B 105, L020503 (2022).Link opens in a new window

D. A. Mayoh, S. J. R. Holt, T. Takabatake, G. Balakrishnan, and M. R. Lees, Anisotropic superconductivity and unusually robust electronic critical field in single crystal La7Ir3, Physical Review Materials 5, 114803 (2021).Link opens in a new window

D. A. Mayoh, G. D. A wood, S. J. R. Holt, G. Beckett, E. J. L. Dekker, M. R. Lees, and G. Balakrishnan, Effects of Fe Deficiency and Co Substitution in Polycrystalline and Single Crystal of Fe3GeTe2, Crystal Growth & Design 21, 6786 (2021).Link opens in a new window

P. K. Biswas, S.K. Ghosh, J. Z. Zhao, D. A. Mayoh, N. D. Zhigadlo, X. Xu, C. Baines, A. D. Hillier, G. Balakrishnan, and M. R. Lees, Chiral Singlet Superconductivity in the weakly correlated metal LaPt3P, Nature Communications 12, 2504 (2021).

A. E. Hall, D. D. Khalyavin, P. Manuel, D. A. Mayoh, F. Orlandi, O. A. Petrenko, M. R. Lees, and G. Balakrishnan, Magnetic structure investigation of the intercalated transition metal dichalcogenide V1/3NbS2, Physical Review B 103, 174431 (2021).Link opens in a new window

D. A. Mayoh, A. D. Hillier, G. Balakrishnan, M. R. Lees, Evidence for the coexistence of time-reversal symmetry breaking and Bardeen-Cooper-Schrieffer-like superconductivity in La7Pd3, Physical Review B 103, 024507 (2021).Link opens in a new window

D. A. Mayoh, A. D. Hillier, K. Götze, D. McK. Paul, G. Balakrishnan, and M. R. Lees, Multigap superconductivity in chiral noncentrosymmetric TaRh2B2, Physical Review B 98, 014502 (2018).Link opens in a new window

Recent Conference Highlights:

Invited Talks
  • "Exploring Unconventional superconductivity in noncentrosymmetric compounds", Physics Colloquium Series, Technische Universität Braunschweig (2021).
  • "Chiral Magnetism and the nature of magnetic ordering in the intercalated transition metal dichalcogenides", Theoretical and Experimental Magnetism Meeting, Online Conference (2021).
  • "Unconventional superconductivity in noncentrosymmetric compounds", Public Seminar, Paul Scherrer Institut, Switzerland (2019).
Oral Presentations:
  • "Chiral magnetism and the Hall effect in Cr1/3NbS2" CRIM 2021: Magnetic Skyrmions workshop (2021).
  • "Exploring superconductivity using μSR in hexagonal noncentrosymmetric superconductors", Condensed Matter and Quantum Materials, Online Conference (2021).
  • "Magneto-transport and magnetic ordering in the intercalated transition metal dichalcogenides", American Physical Society March Meeting, Online Conference (2021).
  • "Detecting unconventional superconductivity using muons", UK Neutron and Muon Science and User Meeting, Warwick, UK (2019).
Poster Presentations:
  • UK Neutron and Muon Science and User Meeting, Warwick, UK (2018 & 2019).
  • Superconductivity Day, Liverpool, UK (2017).

Teaching Duties


I was was a demonstrator and marker for the 1st Year Physics Teaching Laboratory and 1st Year Electronics Laboratory between 2015 and 2019. I was honoured to be selected as a commendee for the Warwick Awards for Teaching Excellence for Postgraduates who Teach 2018.

Public Engagement, Outreach and Widening Participation


I help run a series of workshops on superconducting 'levitation'. As part of this program, I deliver the workshops at the university of Warwick, local schools and at science events. The levitation workshop aims to explain the importance of superconductivity and magnetism in every day life. We demonstrate the stark changes that occur to the physical properties of materials when we cool them down using cryogenic liquids.

Events and activities

Here's a list with some of the recent public engagement, widening participation and outreach events and activities in which I have been involved.

XMaSLink opens in a new window:
  • XMaS Science Gala (2018).
Science Festivals & Family Days:
University Open Days:
  • University of Warwick, Physics Department (2015- Present)
  • University of St Andrews, School of Physics and Astronomy (2010- 2015)

Other Professional Activities:

  • Reviewer for Scientific Journals including Physical Review Letters, Physical Review B and Physical Review Materials.
  • Health and Safety Committee - Representative of Chemical Handling and Chemical Storage (since 2021)
  • Member of the Institute of Physics (IOP) (Since 2010)
  • Co-organiser of the IOP Conference for Astronomy and Physics Students (CAPS) in St Andrews in 2014.

Below are a list of courses/training schools that I took during me postgraduate studies:

  • ISIS Neutron Training School 2016
  • ISIS Muon Training School 2016
  • Diamond DTC Module: Properties & Characterisation Materials

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Address:

Daniel Mayoh
Superconductivity and Magnetism Group (Room 230)
Department of Physics
University of Warwick
Coventry CV4 7AL

E-Mail:

D dot Mayoh dot 1 at warwick dot ac dot uk

Tel:

+44 (0)2476 522329

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