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VOLUME 47 (1988) | ISSUE 4 | PAGE 210
Strings with boojums at their ends: topological defects of a new type in nematic liquid crystals
Strings connecting pairs of point defects have been observed experimentally in thin layers of a nematic liquid crystal with degenerate hybrid boundary conditions for the distribution of the director field. The strings contract at a constant rate to the point of annihilation in a dissipative dynamic process.