PIRSA:13120018

Video URL

https://pirsa.org/13120018

Dynamics of the magnetic disc in nematic liquid crystal under the action of magnetic field

Antipova, A. (2013). Dynamics of the magnetic disc in nematic liquid crystal under the action of magnetic field. Perimeter Institute for Theoretical Physics. https://pirsa.org/13120018

Antipova, Alena. Dynamics of the magnetic disc in nematic liquid crystal under the action of magnetic field. Perimeter Institute for Theoretical Physics, Dec. 05, 2013, https://pirsa.org/13120018 

          @misc{ scivideos_PIRSA:13120018,
            doi = {10.48660/13120018},
            url = {https://pirsa.org/13120018},
            author = {Antipova, Alena},
            keywords = {},
            language = {en},
            title = {Dynamics of the magnetic disc in nematic liquid crystal under the action of magnetic field},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {dec},
            note = {PIRSA:13120018 see, \url{https://scivideos.org/pirsa/13120018}}
          }

Alena Antipova Western University

Talk numberPIRSA:13120018
DOI10.48660/13120018
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

We simulated Ni disc immersed in a liquid crystal using a lattice Boltzmann algorithm for liquid crystals. In the absence of external torques discs with homeotropic anchoring align with their surface normal parallel to the director of the nematic liquid crystal. In the presence of a weak magnetic field (<10G) the disc will rotate to equilibrate the magnetic torque and the elastic torque due to the distortion of the nematic director. When the magnetic field rotates the disc so that the angle between normal to the surface of the disc and director of the liquid crystal becomes greater than the disc goes through the transition in which . The analysis of this behavior was performed.