A polarimetric study of optical anisotropy in the rare-earth cuprates R<sub>2</sub>CuO<sub>4</sub>
B B Krichevtsovi; R V Pisarev; A Burau; H -J Weber; S N Barilo; D I Zhigunov; B B Krichevtsovi; A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia; R V Pisarev; A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia; A Burau; A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia; H -J Weber; A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia; S N Barilo; A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia; D I Zhigunov; A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia
Журнал:
Journal of Physics: Condensed Matter
Дата:
1994-06-20
Аннотация:
The optical dielectric function of the ac plane of rare-earth cuprate (R<sub>2</sub>CuO<sub>4</sub>) single crystals in the energy range 1.2-2.7 eV is measured in reflection by a polarimetric method. The dispersion of optical anisotropy in insulating samples is described by two oscillators separated by 0.4 eV. Conducting samples can be identified by a Drude-like contribution. The sensitivity of the applied method allows us to test surface quality and the influence of electric transport properties on optical anisotropy.
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