Abstract
This paper discusses exchange splitting in the spectra of Er3+ introduced as a spectroscopic probe in rare-earth ferroborates RFe3(BO3)4 (R=Y,Er,Tb,Gd). The temperatures of magnetic ordering are determined [38±1 K for YFe3(BO3)4, 39±1 K for ErFe3(BO3)4, 41±1 K for TbFe3(BO3)4, 37±1 K for GdFe3(BO3)4] and the spin-reorientation transition in GdFe3 (BO3)4:TR=7.5±0.5 K. Based on a comparison of the Er3+ spectra in GdFe3 (BO3)4, the magnetic structure of which is known, and in other ferroborates, a conclusion is made concerning the orientation of the magnetic moments of iron MFe in the magnetically ordered state: MFe ⊥ c for yttrium and erbium ferroborates, and MFe∥c for terbium ferroborate.
Original language | English (US) |
---|---|
Pages (from-to) | 139-143 |
Number of pages | 5 |
Journal | Journal of Optical Technology (A Translation of Opticheskii Zhurnal) |
Volume | 74 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2007 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- General Engineering
- Computational Mathematics
- Applied Mathematics