TY - JOUR
T1 - Different types of magnetic ordering in RFe3(BO 3)4, R=Gd, Tb, Er, and Y, as studied by the method of Er3+ spectroscopic probe
AU - Popova, M. N.
AU - Chukalina, E. P.
AU - Stanislavchuk, T. N.
AU - Bezmaternykh, L. N.
N1 - Funding Information:
This work was supported in part by the Russian Foundation for Basic Research (Grant nos. 04-02-17346 and 03-02-16286), and by the Russian Academy of Sciences under the Programs for Basic Research.
PY - 2006/5
Y1 - 2006/5
N2 - We studied temperature-dependent high-resolution optical spectra of Er 3+ probe ion introduced into single crystals of the borates RFe 3(BO3)4, R=Gd, Tb, Er, and Y. Exchange splittings of the Er3+ Kramers doublets were found from the spectra. They manifest the magnetic ordering in Gd, Tb, Er, and Y iron borates at 37, 41, 38, and 39 K, respectively, and a spin-reorientation in GdFe 3(BO3)4: Er (1%) at TR=7.5 K. From a comparison of the data on Y, Er, and Tb iron borates with those on GdFe 3(BO3)4 where the magnetic structure has been determined earlier, we suggest the following patterns of the ordered Fe magnetic moments: mFe⊥c for R=Er and Y; mFe|c for R=Tb.
AB - We studied temperature-dependent high-resolution optical spectra of Er 3+ probe ion introduced into single crystals of the borates RFe 3(BO3)4, R=Gd, Tb, Er, and Y. Exchange splittings of the Er3+ Kramers doublets were found from the spectra. They manifest the magnetic ordering in Gd, Tb, Er, and Y iron borates at 37, 41, 38, and 39 K, respectively, and a spin-reorientation in GdFe 3(BO3)4: Er (1%) at TR=7.5 K. From a comparison of the data on Y, Er, and Tb iron borates with those on GdFe 3(BO3)4 where the magnetic structure has been determined earlier, we suggest the following patterns of the ordered Fe magnetic moments: mFe⊥c for R=Er and Y; mFe|c for R=Tb.
KW - Magnetic ordering
KW - Optical spectroscopy
KW - Rare-earth iron borates
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U2 - 10.1016/j.jmmm.2005.10.187
DO - 10.1016/j.jmmm.2005.10.187
M3 - Conference article
AN - SCOPUS:33644637184
SN - 0304-8853
VL - 300
SP - e440-e443
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1
T2 - Third International Symposium on Magnetism 2005
Y2 - 26 June 2005 through 30 June 2005
ER -