Optical and magneto-optical properties of RFe{sub 2} (R=Gd,Tb,Ho,Lu) and GdCo{sub 2}
- Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
The conductivity tensors of single crystals and polycrystals of RFe{sub 2} (R=Gd,Tb,Ho,Lu) and GdCo{sub 2} were determined in the visible and near UV ranges. The magneto-optical Kerr effect (MOKE) was studied at different temperatures and magnetic fields. The single-crystal data show more features and larger magnitudes in the MOKE spectrum than the polycrystalline data under the same experimental conditions. The theoretical optical conductivity tensors for these compounds were calculated using the tight-binding linear-muffin-tin orbital (TB-LMTO) method in the local spin-density approximation. The agreement between theory and experiment was poor except for LuFe{sub 2}, in which the 4f shell is completely closed. (c) 2000 The American Physical Society.
- OSTI ID:
- 20215839
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 14 Vol. 61; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetic anisotropy of RFe sub 10 Si sub 2 alloys
Heat capacity studies of RFe/sub 2/ intermetallic compounds (R = Ho, Er and Lu)/sup a/