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19 April 2024 |
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Magnetic and spectral properties of multi-sublattice oxides SrY2O4:Er3+ and SrEr2O4 | | B.Z. Malkin
; S.I. Nikitin
; I.E. Mumdzhi
; D.G. Zverev
; R. V. Yusupov
; I.F. Gilmutdinov
; R.G. Batulin
; B.F. Gabbasov
; A.G. Kiiamov
; D.T. Adroja
; O. Young
; O.A. Petrenko
; | | Date: |
7 Aug 2015 | | Abstract: | SrEr2O4 is a geometrically frustrated magnet which demonstrates rather
unusual properties at low temperatures including a coexistence of long- and
short-range magnetic order, characterized by two different propagation vectors.
In the present work, the effects of crystal fields (CF) in this compound
containing four magnetically inequivalent erbium sublattices are investigated
experimentally and theoretically. We combine the measurements of the CF levels
of the Er3+ ions made on a powder sample of SrEr2O4 using neutron spectroscopy
with site-selective optical and electron paramagnetic resonance measurements
performed on single crystal samples of the lightly Er-doped nonmagnetic
analogue, SrY2O4. Two sets of CF parameters corresponding to the Er3+ ions at
the crystallographically inequivalent lattice sites are derived which fit all
the available experimental data well, including the magnetization and dc
susceptibility data for both lightly doped and concentrated samples. | | Source: | arXiv, 1508.1638 | | Services: | Forum | Review | PDF | Favorites | |
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