Abstract
In this paper, we investigate the structure and stability of the isotropic-nematic interface in 1-D. In the absence of the anisotropic energy, the uniaxial solution is the only global minimizer. In the presence of the anisotropic energy, the uniaxial solution with the homeotropic anchoring is stable for \(L_2<0\) and unstable for \(L_2>0\). We also present many interesting open questions, some of which are related to De Giorgi conjecture.
Similar content being viewed by others
References
Albert, G., Ambrosio, L., Cabre, X.: On a long-standing conjecture of E. De Giorge: symmetry in 3d for nonlinearities and a local minimality property, Acta. Appl. Math. 65, 9–33 (2001)
Ball, J.M., Majumdar, A.: Nematic liquid crystals: from maier–saupe to a continuum theory. Mol. Cryst. Liq. Cryst. 525, 1–11 (2010)
de Gennes, P.G.: Short range order effects in the isotropic phase of nematics and cholesteric. Mol. Cryst. Liq. Cryst. 12, 193–214 (1971)
de Gennes, P.G., Prost, J.: The Physics of Liquid Crystals. Clarendon Press, Wotton-under-Edge (1993)
Doi, M., Kuzuu, N.: Structure of the interface between the nematic phase and the isotropic phase in the rodlike molecules. J. Appl. Poly. Sci 41, 65–68 (1985)
Faetti, S., Palleschi, V.: Molecular orientation and anchoring energy at the nematic–isotropic interface of 7CB. J. Phys. Lett. 45, 313 (1984)
Han, J., Luo, Y., Wang, W., Zhang, P., Zhang, Z.: From microscopic theory to macroscopic theory: a systematic study on modeling for liquid crystals. Arch. Ration. Mech. Anal. 215, 741–809 (2015)
Holyst, R., Poniewierski, A.: Director orientation at the nematic-phase-isotropic-phase interface for the model of hard spherocylinders. Phys. Rev. A 38, 1527 (1988)
Kamil, S.M., Bhattacharjee, A.K., Adhikari, R., Menon, G.I.: Biaxiality at the isotropic–nematic interface with planar anchoring. Phys. Rev. E 80, 041705 (2009)
Kamil, S.M., Bhattacharjee, A.K., Adhikari, R., Menon, G.I.: The isotropic–nematic interface with an oblique anchoring condition. J. Chem. Phys. 131, 174701 (2009)
Moore, B.G., McMullen, W.E.: Isotropic–nematic interface of hard spherocylinders: beyond the square-gradient approximation. Phys. Rev. A 42, 6042 (1990)
Popa-Nita, V., Sluckin, T.J.: Waves at the nematic–isotropic interface: nematic-non-nematic and polymer-nematic mixtures. NATO Sci. Ser. II Math. Phys. Chem. 242, 253–267 (2007)
Popa-Nita, V., Sluckin, T.J., Wheeler, A.A.: Statics and kinetics at the nematicisotropic interface: effects of biaxiality. J. Phys. II (France) 7, 1225–1243 (1997)
Savin, O.: Regularity of flat level sets in phase transitions. Ann. Math. 169, 41–78 (2009)
Wang, W., Zhang, P., Zhang, Z.: Rigorous derivation from Landau-de Gennes Theorey to Ericksen–Leslie theory. SIAM J. Math. Anal. 47, 127–158 (2015)
Wincure, B., Ray, A.D.: Interfacial nematodynamics of heterogeneous curved isotropic–nematic moving fronts. J. Chem. Phys. 124, 244902 (2006)
Acknowledgements
We would like to thank the anonymous referee for the careful reading and very useful comments. Part of this paper was carried out while the first author was visiting Peking University and the second author was visiting NYU Shanghai and Chungnam National University. The first author gratefully acknowledges hospitality of Peking University during his visit and the second author also wishes to thank NYU-Shanghai and Chungnam National University for the warm hospitality. J. Park’s work is partially supported by A3 Foresight Program among China (NSF), Japan (JSPS), and Korea (NRF 2014K2A2A6000567). W. Wang’s work is partially supported by China Postdoctoral Science Foundation under Grant 2013M540010 and 2014T70008, and NSF of China under Grant 11501502. P. Zhang’s work is partially supported by NSF of China under Grant 11421101 and 11421110001 and the work of Z. Zhang is partially supported by NSF of China under Grant 11371039 and 11425103.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by F. H. Lin.
Rights and permissions
About this article
Cite this article
Park, J., Wang, W., Zhang, P. et al. On minimizers for the isotropic–nematic interface problem. Calc. Var. 56, 41 (2017). https://doi.org/10.1007/s00526-017-1131-y
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00526-017-1131-y