312 citations · 835 across the 15 of their papers we have counts for
13 papers · 1 filter
Improper-proper ferroelectric competition as a mechanism for multistate polarisation and ferrielectric-like behaviour
Cameron A. M Scott, Finlay D. Morrison, Nicholas. C. Bristowe
In this paper, we re-explore a simple textbook Landau model describing improper ferroelectricity and show that in the limit where both proper and improper instabilities exist and c…
Plasmon Soft Mode in an Organic-Inorganic Hybrid Perovskite
Jiyu Tian, Karuna Kara Mishra, Eli Zysman-Colman +3
We report inelastic light scattering from underdamped plasmons in azetidinium lead bromide (AzPbBr3). The plasmons are very strongly temperature dependent and serve as a soft mode…
Studies of Barkhausen Pulses in Ferroelectrics
C. D. Tan, J. Gardner, F. D. Morrison +2
Systems that produce crackling noises such as Barkhausen pulses are statistically similar and can be compared with one another. In this project, the Barkhausen noise of three ferro…
Quantum Critical Points in Ferroelectric Relaxors: Stuffed Tungsten Bronze K3Li2Ta5O15 and Lead Pyrochlore (Pb2Nb2O7)
Rebecca M. Smith, Jonathan Gardner, Finlay D. Morrison +7
We have synthesised ceramic specimens of the tetragonal tungsten bronze K3Li2Ta5O15 (KLT) and characterized its phase transition via X-ray, dielectric permittivity, ultrasonic spec…
PbTi1-xPdxO3: A New Room-temperature Magnetoelectric Multiferroic Device Material
Elzbieta Gradauskaite, Jonathan Gardner, Rebecca M. Smith +4
There have been a large number of papers on bismuth ferrite (BiFeO3) over the past few years, trying to exploit its room-temperature magnetoelectric multiferroic properties. Althou…
Ferrielectricity in an Organic Ferroelectric
James F. Scott, Finlay D. Morrison, Rebecca Clulow +7
We report ferrielectricity in a single-phase crystal, TSCC -- tris-sarcosine calcium chloride [(CH3NHCH2COOH)3CaCl2]. Ferrielectricity is well known in smectic liquid crystals but…