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Description
| - IR reflectivity spectra of SrMnO3 ceramics reveal 18% stiffening of the lowest-frequency phonon below the antiferromagnetic phase transition occuring at T_N = 233 K. Such a large temperature change of the polar phonon frequency is extraordinary and we attribute it to an exceptionally strong spin-phonon coupling in this material. This is consistent with our prediction from first-principles calculations. Moreover, polar phonons become Raman active below T_N, although their activition is forbidden by symmetry in the Pm3m space group.
- IR reflectivity spectra of SrMnO3 ceramics reveal 18% stiffening of the lowest-frequency phonon below the antiferromagnetic phase transition occuring at T_N = 233 K. Such a large temperature change of the polar phonon frequency is extraordinary and we attribute it to an exceptionally strong spin-phonon coupling in this material. This is consistent with our prediction from first-principles calculations. Moreover, polar phonons become Raman active below T_N, although their activition is forbidden by symmetry in the Pm3m space group. (en)
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Title
| - Strong spin-phonon coupling in infrared and Raman spectra of SrMnO3.
- Strong spin-phonon coupling in infrared and Raman spectra of SrMnO3. (en)
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skos:prefLabel
| - Strong spin-phonon coupling in infrared and Raman spectra of SrMnO3.
- Strong spin-phonon coupling in infrared and Raman spectra of SrMnO3. (en)
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skos:notation
| - RIV/68378271:_____/14:00431294!RIV15-GA0-68378271
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - I, P(GAP204/12/1163), P(GP14-14122P), P(LD12026), P(LH13048)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68378271:_____/14:00431294
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - multiferroics; spin-phonon coupling; infrared and Raman spectra (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Bovtun, Viktor
- Kamba, Stanislav
- Kempa, Martin
- Lee, J. H.
- Borodavka, Fedir
- Goian, Veronica
- Pacherová, Oliva
- Vaněk, Přemysl
- Hejtmánek, Jiří
- Skoromets, Volodymyr
- Belik, A. A.
- Rabe, K. M.
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1103/PhysRevB.89.064308
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