Magnons and crystal-field transitions in hexagonal RMnO 3 (R = Er, Tm, Yb, Lu) single crystals

E. C. Standard; T. Stanislavchuk; A. A. Sirenko; N. Lee; S. W. Cheong

doi:10.1103/PhysRevB.85.144422

Magnons and crystal-field transitions in hexagonal RMnO ₃ (R = Er, Tm, Yb, Lu) single crystals

E. C. Standard, T. Stanislavchuk, A. A. Sirenko, N. Lee, S. W. Cheong

Physics

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Far-infrared optical transmission spectra of the antiferromagnetic resonances, or magnons, and crystal-field (CF) transitions have been studied in hexagonal RMnO ₃ (R = Er, Tm, Yb, Lu) single crystals. The magnon and CF frequencies, their oscillator strengths, and effective g factors have been measured using external magnetic fields up to 9 T in the temperature range between 1.5 and 100 K. The magnon frequency increases systematically with a decrease of the R ion radius. The magnetic ordering of R ions (R = Er, Tm, Yb) was observed at low temperatures T<3.5 K and in strong external magnetic fields. The observed effects are analyzed taking into account the main magnetic interactions in the system including exchange of the Mn3 ⁺ spins with R3 ⁺ paramagnetic moments.

Original language	English (US)
Article number	144422
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.85.144422
State	Published - Apr 23 2012

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.85.144422

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title = "Magnons and crystal-field transitions in hexagonal RMnO 3 (R = Er, Tm, Yb, Lu) single crystals",

abstract = "Far-infrared optical transmission spectra of the antiferromagnetic resonances, or magnons, and crystal-field (CF) transitions have been studied in hexagonal RMnO 3 (R = Er, Tm, Yb, Lu) single crystals. The magnon and CF frequencies, their oscillator strengths, and effective g factors have been measured using external magnetic fields up to 9 T in the temperature range between 1.5 and 100 K. The magnon frequency increases systematically with a decrease of the R ion radius. The magnetic ordering of R ions (R = Er, Tm, Yb) was observed at low temperatures T<3.5 K and in strong external magnetic fields. The observed effects are analyzed taking into account the main magnetic interactions in the system including exchange of the Mn3 + spins with R3 + paramagnetic moments.",

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AU - Standard, E. C.

AU - Stanislavchuk, T.

AU - Sirenko, A. A.

AU - Lee, N.

AU - Cheong, S. W.

PY - 2012/4/23

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N2 - Far-infrared optical transmission spectra of the antiferromagnetic resonances, or magnons, and crystal-field (CF) transitions have been studied in hexagonal RMnO 3 (R = Er, Tm, Yb, Lu) single crystals. The magnon and CF frequencies, their oscillator strengths, and effective g factors have been measured using external magnetic fields up to 9 T in the temperature range between 1.5 and 100 K. The magnon frequency increases systematically with a decrease of the R ion radius. The magnetic ordering of R ions (R = Er, Tm, Yb) was observed at low temperatures T<3.5 K and in strong external magnetic fields. The observed effects are analyzed taking into account the main magnetic interactions in the system including exchange of the Mn3 + spins with R3 + paramagnetic moments.

AB - Far-infrared optical transmission spectra of the antiferromagnetic resonances, or magnons, and crystal-field (CF) transitions have been studied in hexagonal RMnO 3 (R = Er, Tm, Yb, Lu) single crystals. The magnon and CF frequencies, their oscillator strengths, and effective g factors have been measured using external magnetic fields up to 9 T in the temperature range between 1.5 and 100 K. The magnon frequency increases systematically with a decrease of the R ion radius. The magnetic ordering of R ions (R = Er, Tm, Yb) was observed at low temperatures T<3.5 K and in strong external magnetic fields. The observed effects are analyzed taking into account the main magnetic interactions in the system including exchange of the Mn3 + spins with R3 + paramagnetic moments.

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Magnons and crystal-field transitions in hexagonal RMnO ₃ (R = Er, Tm, Yb, Lu) single crystals

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