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Iowa State University

2001

Physics and Astronomy Publications

Spectroscopic ellipsometer

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Optical Properties Of Rni2b2c (R=Y,Tb,Er,Dy), S. J. Lee, B. K. Cho, Paul C. Canfield, David W. Lynch May 2001

Optical Properties Of Rni2b2c (R=Y,Tb,Er,Dy), S. J. Lee, B. K. Cho, Paul C. Canfield, David W. Lynch

Physics and Astronomy Publications

The optical properties of single crystals of RNi2B2C (R=Y,Tb,Er, and Dy) were measured between 1.7 and 5.2 eV at room temperature using a spectroscopic ellipsometer. The spectra for all compounds are similar and the peak positions appear in a similar energy region. The similarity of the spectra of RNi2B2C (R=Tb,Er,Dy) to that of YNi2B2C indicates that the rare-earth 4f states are not actively involved in the optical transitions.