Electronic and Spectral Properties of RRhSn (R = Gd,Tb) Intermetallic Compounds |
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Authors: | Yu V Knyazev A V Lukoyanov Yu I Kuz’min S Gupta K G Suresh |
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Institution: | 1.Mikheev Institute of Metal Physics, Ural Branch,Russian Academy of Sciences,Yekaterinburg,Russia;2.Yeltsin Ural Federal University,Yekaterinburg,Russia;3.Department of Physics,Indian Institute of Technology Bombay,Mumbai,India |
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Abstract: | The investigations of electronic structure and optical properties of GdRhSn and TbRhSn were carried out. The calculations of band spectrum, taking into account the spin polarization, were performed in a local electron density approximation with a correction for strong correlation effects in 4f shell of rare earth metal (LSDA + U method). The optical studies were done by ellipsometry in a wide range of wavelengths, and the set of spectral and electronic characteristics was determined. It was shown that optical absorption in a region of interband transitions has a satisfactory explanation within a scope of calculations of density of electronic states carried out. |
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