Research


Currently I am working on a project revolving around the analysis of EEG data.

Additionaly I am engaged in the studies devoted to spontaneous chiral symmetry breaking in liquid crystalline systems of achiral bent-core molecules, which aim is to investigate the nature of heliconical (twist-bend) nematic phase (NTB) of nanoscale pitch. My research focuses on chiral, biaxial and polar order in microscopic and phenomenological models of bent-core liquid crystals in the mean field approximation.

Recent research


Publications:


In silico study of liquid crystalline phases formed by bent-shaped molecules with excluded volume type interactions
Piotr Kubala, Wojciech Tomczyk and Michał Cieśla
The Journal of Molecular Liquids, 2022, 367, 120156
DOI: 10.1016/j.molliq.2022.120156

Twist-bend nematic phase from the Landau-de Gennes perspective
Lech Longa and Wojciech Tomczyk
The Journal of Physical Chemistry C, 2020, 124, 22761
DOI: 10.1021/acs.jpcc.0c05711


Role of molecular bend angle and biaxiality in the stabilization of the twist-bend nematic phase
Wojciech Tomczyk and Lech Longa
Soft Matter (Communication), 2020, 16, 4350
DOI: 10.1039/D0SM00078G

Twist-bend nematic phase in the presence of molecular chirality
Lech Longa and Wojciech Tomczyk
Liquid Crystals (Invited article), 2018, 45, 2074
DOI: 10.1080/02678292.2018.1499148


Twist-bend nematic phases of bent-shaped biaxial molecules
Wojciech Tomczyk, Grzegorz Pająk, and Lech Longa
Soft Matter (Communication), 2016, 12, 7445
DOI: 10.1039/C6SM01197G  ArΧiv: 1606.00633


Talks:


"The role of chirality and flexopolarization in the stability of twist-bend nematic and cholesteric phases"

Multiscale Phenomena in Condensed Matter – Multis2022,
27-30 June 2022, on-line


"The role of chirality and flexopolarization in the stability of twist-bend nematic and cholesteric phases"

XXII Conference on Liquid Crystals: Chemistry, Physics and Applications CLC2018, 17-21 September 2018, Jastrzębia Góra (PL)


"Twist-bend nematic phase under the influence of an external electric field:
a mean-field approach"

XXI Conference on Liquid Crystals: Chemistry, Physics and Applications CLC2016, 18-23 September 2016, Krynica Zdrój (PL)


"Interplay between arm biaxiality and bend angle of bent-shaped molecules forming twist-bend nematic phase"

Twist-bend nematics and beyond, 7-8 April 2016, Southampton (UK)


"Model średniopolowy dla fazy nematycznej twist-bend zbudowanej z molekuł ze zgiętym rdzeniem i dwuosiowymi ramionami"

Sympozjum doktoranckie Konsorcjum Warszawa-Fizyka-Kraków, 4-5 March 2016, Kraków (PL)


"Stability of nematic twist-bend phase formed by bent-core molecules with biaxial arms"

The 13th European Conference on Liquid Crystals, 7-11 September 2015, Manchester (UK)


Posters:


"Twist-bend nematic phase in the presence of molecular chirality"

RSC Twitter Poster Conference 2019, 5-6 march 2019


"Hairpin or boomerang? The influence of the molecules shape on the formation of twist-bend nematic phase"

RSC Twitter Poster Conference 2018, 6-7 march 2018


"How does the molecular structure of the bent-core molecules affects the occurrence of twist-bend nematic phase?: a mean-field study"

Multiscale phenomena in molecular matter, 3-6 July 2017, Kraków (PL)


"Bent-core molecules with biaxial arms forming nematic twist-bend phase: a generalised Maier-Saupe theory"

28th Marian Smoluchowski Symposium on Statistical Physics: Thermodynamics in a Nanoscale, 14-17 September 2015, Kraków (PL)


Invited seminar talks:


"Modulowane fazy nematyczne"

Seminar of Soft Matter Research Department (The Henryk Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences),
22 January 2019, Kraków (PL)


"Waściwości optyczne modulowanych faz nematycznych: twist-bend i cholesterycznej"

Seminar of Photonics Department (Jagiellonian University),
30 January 2017, Kraków (PL)


Grants:


PL: Uogólniona teoria Maiera-Saupe dla ciekłokrystalicznej fazy nematycznej twist-bend zbudowanej z dwuosiowych molekuł typu bent-core
- Grant manager



PL: Komputerowe modelowanie materii miękkiej
- Subcontractor


PL: Badanie własciwosci fizyko-chemicznych materiałów organicznych w oparciu o modele kwantowo-chemiczne
- Grant manager




PL: Badanie mechanizmów spontanicznego łamania symetrii chiralnej w materiałach ciekłokrystalicznych
- Subcontractor