| http://www.w3.org/ns/prov#value | - For ferroelectric (chiral smectic) liquid-crystal mixtures, the condition must additionally be satisfied that the pitch of the helix in the Sc * phase is large, i.e. greater than 5 ??m, and the pitch of the helix in the N* phase is very large, i.e. greater than 10 ??m, or is infinite.
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