Jayasri D

School of Natural Sciences

Dr. Jayasri is an Associate Professor with MEC in the Department of Physics. Her research interests include Development of novel non-Boltzmann Monte Carlo techniques, Numerical simulations of colloidal systems in liquid crystals using finite difference methods, Parallelization of Monte Carlo methods, Self-assembly and hierarchical structures in liquid crystalline colloidal systems, phase transitions in confined liquid crystals in various complex geometries and liquid crystal elastomers.

Dr. Jayasri holds a Ph.D. in Physics from University of Hyderabad, India.

Contact: Jayasri.D[at]mechyd.ac.in   040-67135146

  • Ph.D. (Physics), University of Hyderabad, India, 2009.
  • M. Tech. (Computational Techniques in Physics), University of Hyderabad, India, 2004.
  • M. Sc. (Physics), Acharya Nagarjuna University, India, 2002.
  • B. Sc. (Physics), Nagarjuna University, 2000.

Research Interests:

I have been involved in research and development of computational tools to study soft condensed matter systems.
My interests include but not confined to:

  • Development of novel non-Boltzmann Monte Carlo techniques
  • Application of such methods to soft matter and other biological systems with complex free energy landscapes
  • Self-assembly of faceted colloidal particles in liquid crystals using phenomenological approaches
  • Charged colloidal particles and their interactions in nematics
  • Defect dynamics in confined nematics using molecular simulations
  • Phase transitions in confined liquid crystals in various complex geometries and liquid crystal elastomers
  • Parallelization of Monte Carlo methods

Research Experience:

D. S. Kothari Post-Doctoral Researcher (Sep 2013- April 3rd 2014)
CMSD, University of Hyderabad, Hyderabad, India.

  • Interactions between charged colloidal platelets in nematic liquid crystal medium.
  • Self-assembly and hierarchical structures of charged colloids in nematic liquid crystals.

DST-PURSE Post-Doctoral Researcher (Feb 2012-Aug 2013)
CMSD, University of Hyderabad, Hyderabad, India.

  • Flexo-electric effects and the interplay between flexo-electric effect and biaxiality in confined liquid crystals.
  • Design of SRR's from colloidal platelets by geometrical manipulation of the surfaces.

Marie Curie Experienced Researcher (Aug 2009-Nov 2011)
FMF, University of Ljubljana, Ljubljana, Slovenia.

  • Self-assembly of faceted colloidal platelets into complex assemblies and hierarchical structures in nematic liquid crystal medium.
  • Calculation of torques and inter-particle forces between faceted particles crucial in interesting switching applications.
  • Tuning the interactions between the colloidal platelets by changing the surface anchoring on the platelets giving rise to exotic assemblies with aperiodic crystals and also higher fold rotational symmetries such as quasi-crystalline structures.
  • Selected for Dr. D. S. Kothari post-doctoral fellowship by UGC, India (2013).
  • Awarded DST Fast track young scientist award (2011).
  • Selected for Marie-Curie ITN 'HIERARCHY' project as experienced researcher (Aug 2009-2011).
  • Ranked first for overall percentage in the college with a strength of 200 students for B. Sc. in physics division (2000).
  • Selected for 'National Merit Scholarship' based on the percentile at S. S. C. examination by Government of India (1995).

As a journal referee:

  • Refereed articles in 'Journal of engineering and technological research', 2011.

Books:

  1. 'Monte Carlo studies of liquid crystalline systems', LAP Lambert Academic publishers, Germany, 2011.
  2. Invited to write a chapter titled 'Monte Carlo studies of liquid crystal systems' in a book ' New developments in liquid crystals' by Nova publishers, USA.

List of Journals:

  1. Jayasri Dontabhaktuni, Miha Ravnik and Slobodan Zumer, ' Designing colloidal quasi-crystals in nematic liquid crystals', Proc. Natl. Acad. Sci., USA, 111, 2464 (2014).
  2. Jayasri Dontabhaktuni, Regina Jose, K. P. N. Murthy and V. S. S. Sastry,' Effect of phase shift between geometrical and chemical patterning in nematic liquid crystal cells: A Monte Carlo Study', J. Comp. Mater. Sci., (accepted) (2014).
  3. R. Jose, J. Dontabhaktuni, K. P. N. Murthy and V. S. S. Sastry, 'Order parameter based Monte Carlo sampling to study low probable microstates in liquid crystal systems', in preparation (2014).
  4. Miha Ravnik, Jayasri Dontabhaktuni, Miha Cancula and Slobodan Zumer, 'Nematic tilings as photonic materials', Proc. SPIE 9004, Emerging Liquid Crystal Technologies IX, 90040C (2014).
  5. Jayasri Dontabhaktuni, Miha Ravnik and Slobodan Zumer, ' Shape tuning the colloidal assemblies in nematic liquid crystals', Softmatter, 8 1657-1663 (2012).
  6. D. Jayasri, T. Sairam, K. P. N. Murthy and V. S. S. Sastry, 'Liquid crystal films on curved surfaces: A multi-canonical Monte Carlo study', Physica A, 390 4549-4554 (2011).
  7. Regina Jose, D. Jayasri, Surajit Dhara, K. P. N. Murthy and V. S. S. Sastry, 'Effect of external field on the nematic to isotropic transition: An entropic sampling study', Mol. Cryst. Liq. Cryst. 545 168 (2011).
  8. D. Jayasri, Regina Jose, K. P. N. Murthy and V. S. S. Sastry, 'Liquid crystals confined to patterned substrates- A non-Boltzmann Monte Carlo study', arxiv: 1010.3106[cond-mat.soft], (2010).
  9. D. Jayasri, V. S. S. Sastry and K. P. N. Murthy, 'Phase transitions in liquid crystal elastomers - A Monte Carlo study employing non-Boltzmann sampling', Physica A, 388, 385-391 (2009).
  10. D. Jayasri, V. S. S. Sastry and K. P. N. Murthy, 'Effect of cross-link density on the nematic-isotropic phase transition in liquid crystal elastomers', J. Comp. Mater. Sci. 44, 185-189 (2008).
  11. D. Jayasri, T. Sairam, V. S. S. Sastry and K. P. N. Murthy, 'Surface anchoring in thin nematic films: A non-Boltzmann Monte Carlo simulation', Proceedings of the 52nd DAE Solid State Physics Symposium, Mysore, 191-192 (2007).
  12. D. Jayasri, V. S. S. Sastry and K. P. N. Murthy, 'Wang-Landau Monte Carlo simulation of isotropic-nematic in liquid crystals', Phys. Rev. E. 72, 036702 (2005) (widely cited).
  • Assistant for Laboratory course for Computational techniques in Physics for M. Tech.
  • D. S. Kothari Post-Doctoral Researcher CMSD, University of Hyderabad
  • DST-PURSE Post-Doctoral Researcher CMSD, University of Hyderabad
  • Research Associate FMF, University of Ljubljana, Slovenia
  • Marie Curie Experienced Researcher FMF, University of Ljubljana, Slovenia
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