149 citations · 292 across the 13 of their papers we have counts for
13 papers
On the emergence of molecular tilt in a ferroelectric smectic liquid crystal with broken director-inversion symmetry
Aitor Erkoreka, Mauricio Vera-Arévalo, Alberto Concellón +5
The origin of some mesophases of the ferroelectric nematic realm is not yet well understood. In this work we study the highly polar liquid crystal MIO, a close structural analogue…
Elasticity-Driven Periodic Polarization Patterns in Confined Chiral Ferroelectric Nematic Fluid
Anej Sterle, Peter Medle-Rupnik, Luka Cmok +9
Ferroelectric nematic phases are a new class of polar fluids in which spontaneous polarization is directly coupled to the orientational order, providing unique opportunities for cr…
Flexoelectricity-driven softening of bend elasticity leads to spontaneous chiral symmetry breaking in a polar fluid
Aitor Erkoreka, Josu Martinez-Perdiguero, Luka Cmok +6
The origin of the recently observed spontaneous chiral symmetry breaking in polar fluids composed of achiral molecules is an unsolved problem, raising fundamental questions about h…
Mean-field theory of the uniaxial ferroelectric smectic A liquid crystal phase
Aitor Erkoreka, Minjung Huang, Satoshi Aya +1
Following the groundbreaking discovery of the ferroelectric nematic liquid crystal phase (NF), a series of closely-related new polar phases have also been found. An especially inte…
Constraining the value of the dielectric constant of the ferroelectric nematic phase
Aitor Erkoreka, Josu Martinez-Perdiguero
Ferroelectric nematic liquid crystals are currently being subject to a plethora of investigations since they are of great fundamental interest and could potentially foster promisin…
A molecular perspective on the emergence of long-range polar order from an isotropic fluid
Aitor Erkoreka, Nerea Sebastián, Alenka Mertelj +1
The ferroelectric nematic phase (N) has quickly become the most studied system in liquid crystal research. In this work, we investigate the origin of such polar struct…
Dielectric spectroscopy of a ferroelectric nematic liquid crystal and the effect of the sample thickness
Aitor Erkoreka, Josu Martinez-Perdiguero, Richard J. Mandle +2
The recently discovered ferroelectric nematic liquid crystals have been reported to exhibit very large dielectric permittivity values. Here, we report a systematic investigation of…
Fermion-like behavior of elements in their spatial distribution around points of interest
Josu Martinez-Perdiguero
In this paper we analyze the spatial distribution of elements around points of interest. Based on a spatial exclusion principle we model the system by means of a Fermi-Dirac distri…
Development of a high-frequency dielectric spectrometer using a portable vector network analyzer
Aitor Erkoreka, Josu Martinez-Perdiguero
A simple and novel setup for high-frequency dielectric spectroscopy of materials has been developed using a portable vector network analyzer. The measurement principle is based on…
Optimized sample addressing in prism-coupled surface plasmon resonance experiments
Josu Martinez-Perdiguero, Ibon Alonso
In this work we study the walk-off of the beam from the interrogation spot during rotation in surface plasmon resonance experiments using prism-based coupling such as the widesprea…
Collective and non-collective molecular dynamics in a ferroelectric nematic liquid crystal studied by broadband dielectric spectroscopy
Aitor Erkoreka, Alenka Mertelj, Mingjun Huang +3
A great deal of effort has been recently devoted to the study of dielectric relaxation processes in ferroelectric nematic liquid crystals, yet their interpretation remains unclear.…
On the molecular origins of the ferroelectric splay nematic phase
Richard J. Mandle, Nerea Sebastián, Josu Martinez-Perdiguero +1
Nematic liquid crystals have been known for more than a century, but it was not until the 60s-70s that, with the development of room temperature nematics, they became widely used i…
Experimental test of curvature-driven dynamics in the phase ordering of a two dimensional liquid crystal
Alberto Sicilia, Jeferson J. Arenzon, Ingo Dierking +5
We study electric field driven deracemization in an achiral liquid crystal through the formation and coarsening of chiral domains. It is proposed that deracemization in this system…