Spectral studies of magnetic cuprates R sub 2 Cu sub 2 O sub 5 (R=Tb, Er, Tm, Lu, Y)

Spectral studies of magnetic cuprates R sub 2 Cu sub 2 O sub 5 (R=Tb, Er, Tm, Lu, Y)

High-resolution optical absorption spectra of Er sup 3 sup + (intrinsic or introduced as a probe) are measured. Er sup 3 sup + ground doublet splittings, magnetic transition temps., and energies of crystal field levels for the ground multiplet of R are determined. Splittings of spectral lines remain...

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Veröffentlicht in:Solid state communications 1991-01, Vol.79 (7), p.569-572
Hauptverfasser: Chepurko, G G, Paukov, I V, Popova, M N
Format: Artikel
Sprache:eng
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Zusammenfassung:High-resolution optical absorption spectra of Er sup 3 sup + (intrinsic or introduced as a probe) are measured. Er sup 3 sup + ground doublet splittings, magnetic transition temps., and energies of crystal field levels for the ground multiplet of R are determined. Splittings of spectral lines remain also at T > T sub / N/ due to short-range order, indicating the low-dimensional character of the Cu magnetic lattice.
ISSN:0038-1098