Observation of spontaneous ferriquadrupolar order in KDy ( MoO 4 ) 2

Observation of spontaneous ferriquadrupolar order in KDy ( MoO 4 ) 2

Using Raman and infrared spectroscopies, spontaneous ferriquadrupolar ordering has been observed in the rare-earth-based system KDy(MoO4)2. Ordered quadrupoles in the electron subsystem attend nonequivalent distortions of rare-earth ions in the ordered phase. A mean-field theory explaining the onset...

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Veröffentlicht in:Physical review. B 2018-08, Vol.98 (6), p.064406, Article 064406
Hauptverfasser: Zvyagin, A. A., Kutko, K., Kamenskyi, D., Peschanskii, A. V., Poperezhai, S., Nesterenko, N. M.
Format: Artikel
Sprache:eng
Schlagworte:
Mean field theory
Metal ions
Quadrupoles
Rare earth elements
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Zusammenfassung:Using Raman and infrared spectroscopies, spontaneous ferriquadrupolar ordering has been observed in the rare-earth-based system KDy(MoO4)2. Ordered quadrupoles in the electron subsystem attend nonequivalent distortions of rare-earth ions in the ordered phase. A mean-field theory explaining the onset of such a type of ordering has been constructed.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.98.064406