科研之友
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摘要
The magnetic-field-Induced reorientation of a planar alignment nematic liquid crystal (5CB) doped with different paramagnetic dopants has been studied in this paper. It was observed that compared with the pure 5CB, 5CB doped with five-coordinated [Cu(o-xyTQ)H2O](NO3)(2) dramatically decreased the critical magnetic field strength for the reorientation, while 5CB doped with six-coordinated [Cu(DETQ)](ClO4)(2) revealed no such effect. Although the two paramagnetic dopants possess the same magnetic property, they have different intermolecular couplings with host 5CB, which produce the different results. This phenomenon is very useful to study the magneto-optical component of liquid crystal.
