3 papers
cond-mat.mtrl-sci2025
Dome-like pressure-temperature phase diagram of the cooperative Jahn--Teller distortion in NaNiO
Liam A. V. Nagle-Cocco, James M. A. Steele, Shiyu Deng +6
NaNiO is a Ni-containing layered material consisting of alternating triangular networks of Ni and Na cations, separated by octahedrally-coordinated O anions. At ambient…
cond-mat.str-el2025
Pressure induced enhancement of polar distortions in a metal, and implications on the Rashba spin-splitting
Evie Ladbrook, Urmimala Dey, Nicholas C. Bristowe +4
Polar metals are an intriguing class of materials in which electric polarisation and metallicity can coexist within a single phase. The unique properties of polar metals challenge…
cond-mat.str-el2025
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…