5 papers
Hidden Magnetic Octupolar Order driven by Spin-Orbit coupling in KFeF
C. A. Crawford, C. I. Hiley, N. C. Bristowe +6
Phase transitions are typically driven by symmetry-breaking structural distortions that lift electronic degeneracies, yet in some cases, these transitions may be driven by a hidden…
Dynamical magnetism in the disordered cubic lattice material -
Fanjun Xu, Ralf Feyerherm, Cecilie Glittum +12
- realizes a disordered simple-cubic spin- lattice in which Co ions randomly occupy one third of the sites, placing the system…
The interplay between Jahn-Teller distortions and structural degrees of freedom on pseudocubic states in manganite perovskites
Ben R. M. Tragheim, Elodie A. Harbourne, Clemens Ritter +2
The average structure of the solid solution LaMnGaO (LMGO) has been investigated from a symmetry-motivated approach utilizing synchrotron x-ray and neutron powder d…
Signatures of Orbital Order and Disorder in Fluoro-Perovskites with Electronic Degeneracies
C. A. Crawford, C. I. Hiley, J. Gainza +3
A detailed high-resolution, variable temperature powder diffraction study of the fluoro-perovskites NaFeF and NaCoF is performed to probe their orbital ordering transitions…
Goldstone-mediated polar instability in hexagonal barium titanate
S. Simpson, U. Dey, R. J. Sjökvist +5
We discover a rare structural manifestation of the Goldstone paradigm in a hexagonal polytype of the archetypal ferroelectric BaTiO3. First-principles calculations confirm the Gold…