Spectral origin of the colossal magnetodielectric effect in multiferroic
AB Sushkov, C Kant, M Schiebl, AM Shuvaev… - Physical Review B, 2014 - APS
Physical Review B, 2014•APS
The origin of the colossal magnetodielectric (CMD) effect in DyMn 2 O 5 [N. Hur, Phys. Rev.
Lett. 93, 107207 (2004) PRLTAO 0031-9007 10.1103/PhysRevLett. 93.107207] has been an
outstanding question in multiferroics. Here, we report the activation of the electric dipole
mode at 4–5 cm− 1 in an applied magnetic field, which fully accounts for the CMD effect. We
examine two alternative explanations of this mode: an electromagnon and transitions
between f-electron levels of Dy 3+ ions. The experimental and theoretical evidence supports …
Lett. 93, 107207 (2004) PRLTAO 0031-9007 10.1103/PhysRevLett. 93.107207] has been an
outstanding question in multiferroics. Here, we report the activation of the electric dipole
mode at 4–5 cm− 1 in an applied magnetic field, which fully accounts for the CMD effect. We
examine two alternative explanations of this mode: an electromagnon and transitions
between f-electron levels of Dy 3+ ions. The experimental and theoretical evidence supports …
The origin of the colossal magnetodielectric (CMD) effect in [N. Hur , Phys. Rev. Lett. 93, 107207 (2004)PRLTAO0031-900710.1103/PhysRevLett.93.107207] has been an outstanding question in multiferroics. Here, we report the activation of the electric dipole mode at 4–5 in an applied magnetic field, which fully accounts for the CMD effect. We examine two alternative explanations of this mode: an electromagnon and transitions between -electron levels of ions. The experimental and theoretical evidence supports an electromagnon origin of the CMD effect.
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