125 citations · 270 across the 8 of their papers we have counts for
9 papers
Emergent Polar Metal Phase in a Van der Waals Mott Magnet
Shiyu Deng, Matthew J. Coak, Charles R. S. Haines +16
We report the emergence of a two-dimensional (2D) polar metal phase in van der Waals compound FePSe under moderate pressures. This layered material is a Mott insulator with ant…
Comparative structural evolution under pressure of powder and single crystals of the layered antiferromagnet FePS
David M. Jarvis, Matthew J. Coak, Hayrullo Hamidov +9
The layered antiferromagnet FePS has been shown to undergo a structural transition under pressure linked to an insulator-metal transition, with two incompatible models previous…
Evolution of magnetic order in van-der-Waals antiferromagnet FePS through insulator-metal transition
Matthew J. Coak, David M Jarvis, Hayrullo Hamidov +14
Layered van-der-Waals 2D magnetic materials are of great interest in fundamental condensed-matter physics research, as well as for potential applications in spintronics and device…
Pressure dependence of ferroelectric quantum critical fluctuations
M. J. Coak, C. R. S. Haines, C. Liu +2
The effect of ferroelectric fluctuations on the temperature dependent dielectric constant of SrTiO(STO) has been long studied. Those fluctuations have been shown in recent ye…
Isostructural Mott Transition in 2D honeycomb antiferromagnet VPS
M. J. Coak, S. Son, D. Daisenberger +7
We present the observation of an isostructural Mott insulator-metal transition in van-der-Waals honeycomb antiferromagnet VPS through high-pressure x-ray diffraction an…
Group theoretical analysis of structural instability, vacancy ordering and magnetic transitions in the system troilite (FeS) - pyrrhotite (FeS)
Charles Robert Sebastian Haines, Christopher J. Howard, Richard J. Harrison +1
A group-theoretical framework to describe vacancy ordering and magnetism in the FeS system is developed. This framework is used to determine the sequence of crystal structu…