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EPR Study of the Nematic Liquid Crystals: PEBAB and EBRA *

A. S. N. Rao, P. Narayana Murty, C. R. K. Murty, and T. Rs. Reddy **
Department of Physics, Nagarjuna University,
Nagarjunanagar 522510 (India)
Z. Naturforsch. 35a, 841-843 (1980);

[received May 8 1980]

By EPR two nematic liquid crystals PEBAB and EBBA were investigated. The experimental variation of the order parameter with temperature is corroborated with theory. In EBBA a spectrum reminiscent of glassy nature is observed at — 60° C.

Introduction