CPSEM 2026

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Attendance statistics has been added.

Scope and Program

Thematical scope of the XXVI Czech–Polish Seminar included all its traditional subjects:

  • Ferroelectric and structural phase transitions
  • Dielectric and microwave properties, THz and IR spectroscopy
  • Liquid crystals and polymeric liquid crystals
  • Structural and microstructural properties
  • Inelastic light and neutron scattering
  • Domains and domain boundaries
  • Ferroelectric thin and thick films
  • Nanomaterials and size effect
  • Piezoelectrics and pyroelectrics
  • Relaxor ferroelectrics
  • Multiferroics
  • Ionic conductors
  • Applications

Schedule

Technical program of the XXVI Czech–Polish Seminar was scheduled from the afternoon on Monday, May 4 till the lunch on Friday, May 8. Wednesday afternoon was reserved for sightseeing tours.

 Monday
May 4
Tuesday
May 5
Wednesday
May 6
Thursday
May 7
Friday
May 8
9:00–13:00 Talks
Coffee break
Talks
Talks
Coffee break
Talks
Talks
Coffee break
Talks
Talks
  Coffee break  
Talks
13:00–14:30LunchLunchLunchLunch
14:30–19:00RegistrationTalks
Coffee break
Talks
ExcursionTalks
Coffee break
Talks

Departure
 19:00 WelcomePostersPostersDinner

The official language of the conference was English.

 

Program of the XXVI Czech–Polish Seminar

Monday, May 4
14:00Bus departure from Prague
15:30–19:00Registration
19:00Welcome
Tuesday, May 5
9:00–9:05Opening
 SESSION 1 — RELAXORS
9:05–9:35N. Zhang (invited)
The correlated local disorder in relaxor ferroelectrics revealed by diffuse scattering analysis
9:35–9:55A. Szeremeta
Doping influence on structural ferroelectric phase transitions of barium calcium titanate
9:55–10:15J. Hlinka
Microscopic flexoelectricity in the canonical PMN relaxor
10:30–11:00Coffee break
 SESSION 2 — MULTIFERROICS
11:00–11:30B. Andrzejewski (invited)
Tetracalcium aluminoferrite Ca2Fe2−xAlxO5 as an example of smart and versatile brownmillerite
11:30–11:50S. Kamba
Magnetoelectric coupling and frustrated antipolar correlations in hexaaluminates
11:50–12:20J. W. Freeland (invited)
Hybrid ferroelectric–ferromagnetic interfaces: a route to create new coupled ultrafast modes
12:20–12:40J. Więckowski
Specific heat studies of the phase transitions in multiferroic system
12:40–13:00P. Márton
Development of shell-model potentials for mixed perovskites
13:00–14:30Lunch
 SESSION 3 — TOPOLOGICAL DEFECTS
14:30–15:00M. Hadjimichael (invited)
X-ray studies of nanoscale ferroelectric domain walls in perovskite oxide superlattices
15:00–15:20P. Bednyakov
Optically induced ferroelectric charged domain walls
15:20–15:40M. A. Pereira Gonçalves
Vortices and nanodomains in epitaxially strained SrTiO3
15:40–16:100.-A. Condurache (invited)
Polar states and transitions revealed at the atomic scale
16:10–16:30P. Zieliński
Self-similarity and its consequences in ferroic domain patterns, hinged gratings and acoustic signals
16:30–17:00Coffee break
 SESSION 4 — STRAIN ENGINEERING
17:00–17:30S. Seddon (invited)
Twin wall functionality and tunability in ferroelastic LaAlO3
17:30–18:00C. Toulouse (invited)
Modifying functional properties under negative strain by helium implantation
18:00–19:00Posters
19:00Dinner
20:00–20:30J. Pokorný
Guitar: Its role and evolution
Wednesday, May 6
 SESSION 5 — PHASE TRANSITIONS
9:00–9:30E. Gradauskaite (invited)
Epitaxy of Carpy-Galy ferroelectrics: from enhanced polarization to topotactic phase transformations
9:30–10:00A. Gagor (invited)
Structural Mechanisms of Temperature-Induced Phase transitions in multilayered hybrid perovskites
10:00–10:30M. C. Weber (invited)
Controlled ferroic phase transitions via guided domain wall expansion: analogies from magnetism to ferroelectrics – a concept
10:30–11:00Coffee break
 SESSION 6 — SURFACE AND INTERFACE-DRIVEN PHENOMENA
11:00–11:30W. Widdra (invited)
Surface vibrations, polaritons and their coupling to a 2D electron gas: Interface-bound excitations at the SrTiO3(001) surface
11:30–11:50P. Mokrý
Nonlinear dielectric spectroscopy of interfacial layers: from ferroelectrics to electric double layers
11:50–12:20A.B. Blázquez Martínez (invited)
Leakage current reduction in epitaxial BaTiO3 films and BaTiO3/SrTiO3 superlattices integrated on silicon
12:20–12:50B. Dkhil (invited)
Antiferroelectrics: an unexpected materials platform for piezocatalysis
13:00–14:00Lunch
14:00–18:00Excursion
18:00–19:00Posters
19:00Dinner
Thursday, May 7
 SESSION 7 — CHALLENGING CONCEPTS
9:00–9:30K. Roleder (invited)
Astouding ABO3 perovskites – from ferroelectric BaTiO3 and PbTiO3 to antiferroelectric PbZrO3 and PbHfO3
9:30–9:50V. Janiš
Dynamical properties of low-dimensional metallic alloys
9:50–10:20J. Kulda
Opportunities in time-resolved neutron inelastic scattering
10:30–11:00Coffee break
 SESSION 8 — LIQUID CRYSTALS AND ORGANIC MATERIALS
11:00–11:30P. Pieranski (invited)
Serendipity in experiments with liquid crystals
11:30–11:50V. Novotná
Ferroelectricity in nematic liquid crystalline phase
11:50–12:20S. Zięba (invited)
Collapse of the helical hydrogen bond structure in imidazolium hydrogen o-phthalate under high pressure: a vibrational spectroscopy study
12:20–12:50P. Ławniczak (invited)
Impedance vs modulus formalism in proton conductors
13:00–14:30Lunch
 SESSION 9 — ANTIFERROELECTRICS
14:30–15:00M. Otoničar (invited)
Influence of atomic ordering on the properties of NaNbO3-based antiferroelectrics
15:00–15:20J. Piecha
Soft X-ray spectroscopy for a better understanding of the physicochemical properties of PbHfO3
15:20–15:40L. Imhoff
Spectroscopic insights on sodium niobate-based antiferroelectric ceramics
15:40–16:10P.-E. Janolin (invited)
Revisiting the phase transitions in PbZrO3
16:10Group photo
16:30–17:00Coffee break
 SESSION 10 — TOWARDS FREESTANDING AND NONSUPERVISED
17:00–17:30P. Paruch (invited)
Seeds of doubt in unsupervised learning of physical behaviours
17:30–18:00C. Lichtensteiger (invited)
Domains, superdomains and ripples in epitaxially strained and freestanding PbTiO3
19:00Conference dinner
Friday, May 8
 SESSION 11 — TIME-DOMAIN SPECTROSCOPY TECHNIQUES
9:00–9:20C. Kadlec
THz field-induced magnetic-like response in the quantum paraelectric diamagnet KTaO3
9:20–9:40P. Kužel
Theoretical notes on THz pump – optical probe experiments
9:40–10:00T. Troha
Local photoconductivity dynamics in semiconductors investigated by THz near-field microscopy
10:00–10:20H. Němec
Rapid expansion of photo-generated electron-hole plasma in direct gap semiconductors
10:30–11:00Coffee break
 SESSION 12 — THEORETICAL METHODS
11:00–11:30A. Grünebohm (invited)
Tuning phase stability in ferroelectric oxides by epitaxial strain and point defects
11:30–11:50O. Y. Mazur
Domain evolution in uniaxial ferroelectrics: stochastic and phase-field perspectives
11:50–12:20M. Mrovec (invited)
Foundational GRACE: Towards quantum accuracy in atomistic modeling of phase transitions
12:20–12:40M. Khanore
Deep learning frameworks for exploration of energy landscapes of perovskites
12:40Closing
13:00–14:30Lunch
14:30Departure

Posters

P1 – B. Andrzejewski
Structural and dielectric properties of zinc oxide-based ceramics aged with high-energy current strokes

P2 – H. Bakhtaoui
Nonlinear variations of shear elastic constants of lithium niobate crystals at high temperatures

P3 – V. Beneš
Contrastive learning for unsupervised phase discovery

P4 – V. Bovtun
Magnetic domain wall dynamics near phase transitions in ferrites

P5 – A. Bubnov
Mesomorphic and photoactive behaviour of semi-fluorinated chiral liquid crystals

P6 – E. Buixaderas
Phase transitions in SrSnO3-substituted NaNbO3 ceramics as viewed through phonon spectroscopy

P7 – I. Chacón
Ab initio approach to the electrophonon potential vector in tetragonal BaTiO3

P8 – B. Dąbrowski
Synthesis and the structural, magnetic, ferroelectric and specific heat studies of the manganese perovskite multiferroics

P9 – D. Dardas
Electro-optical properties of ferroelectric liquid crystals modified by laser photobleaching

P10 – D. Dardas
Electro-optic Kerr constant in isotropic and blue phases of chiral-doped liquid crystals: experimental study and estimation of effective elastic properties

P11 – J. E. Flores Gonzales
Diffuse scattering in (K,Na)NbO3 solid solutions

P12 – I. Gruszka
Technology, dielectric and calorimetric properties of pure and lithium-doped lead iron niobate (PbFe1/2Nb1/2O3) crystals.

P13 – D. Havryliuk
Insulator-metal transition in the surface layer of a lead hafnium single crystal induced by an Ar+ ion beam

P14 – A. Hilczer
Memory effect in PMN-xPT single crystals

P15 – Z. Holman
Comparison of performance of MACE MLIP

P16 – F. Kadlec
Magnetic and multiferroic properties of BaHoFeO4

P17 – S. Kamba
The origin of microwave dielectric loss and high tunability in SrTiO3-based superlattice

P18 – M. Kempa
Microwave magnetic excitations in U-type hexaferrite ceramics

P19 – A. Klíč
Finite-temperature structure of ferroelectric domain walls in perovskites from shell-model molecular dynamics

P20 – M. Knapkiewicz
Nematic materials optimized for infrared applications

P21 – L. Kozielski
Multiferroic memristors

P22 – V. Lindauer
Electrostatic coupling at the ferroelectric–electrolyte interface

P23 – P. Márton
Zigzag domain walls in ferroelectric BiFeO3

P24 – R. Matuška
Terahertz spectroscopy of plasmons in arrays of graphene dots and holes

P25 – O. Michal
Polarized optical spectroscopies of NdFeO3 and SmFeO3

P26 – S. Mironov
Effect of the molecular structure specificities on mesomorphic and photoactive behaviour of chiral liquid crystals

P27 – A. Mizera
Electrical and spectroscopic properties of polypyrole derivatives doped with graphene quantum dots as counterions

P28 – H. D. Nguyen
Full rock salt-type ordering double and quadruple perovskite: a dielectric properties comparison

P29 – D. Nužnyj
Colossal permittivity in Nb-doped TiO2 crystal

P30 – P. Ondrejkovič
Electric-field response of intrinsic and engineered antipolar systems

P31 – T. Ostapčuk
Broad-band dielectric spectroscopy of NaNbO3-based antiferroelectric ceramics

P32 – M. Paściak
Dynamical local structure across the phase transitions in antiferroelectric materials

P33 – P. Perkowski
Racemisation’s influence on dielectric response in antiferroelectric and ferroelectric smectic liquid crystals

P34 – P. Perkowski
Dielectric properties of a room-temperature mixture showing ferroelectric nematic phase

P35 – C. A. Pescaru
Structural investigation of KTa0.65Nb0.35O3 single crystal by Raman spectroscopy

P36 – J. Pokorný
Spectroscopic study of a solid–water interface

P37 – I. Rychetský
Lawsonite – ab initio modeling

P38 – W. Schranz
Ferroelastic domain switching dynamics in KSCN and RbSCN

P39 – V. Stepkova
Antiskyrmion structure in BaTiO3/SrTiO3 superlattices

P40 – O. Strzeżysz
Light-directed photonic modulation in blue-phase liquid crystals via azobenzene doping

P41 – M. Urbańska
Synthesis and application of liquid crystalline racemates as dopants in antiferroelectric mixtures

P42 – M. C. Weber
Unveiling 4f-driven SHG in NdGaO3 without inversion symmetry breaking

P43 – A. Wypych-Puszkarz
Structures and dielectric performance of polycrystalline Ca2.50.5Mn2V3O12 defect garnet ceramics

P44 – A. Wypych-Puszkarz
Dielectric, electrical and thermal properties of carbazole-based organic materials for optoelectronic applications