Fig. 5: Phonon dispersions in ETO under negative pressure, from DFT calculations. | Nature Communications

Fig. 5: Phonon dispersions in ETO under negative pressure, from DFT calculations.

From: Emergent multiferroism with magnetodielectric coupling in EuTiO3 created by a negative pressure control of strong spin-phonon coupling

Fig. 5

a Phonon dispersion in ETO with an AFM configuration and ideal crystal structure. b Phonon dispersion in ETO with a FM configuration and distorted FE crystal structure. c The change of soft phonon frequency (polar mode) of ETO with a distorted FE crystal structure under different negative pressures.

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