G. A. Komandin, V. I. Torgashev, A. A. Volkov, O. E. Porodinkov, A. A. Pronin, L. D. Iskhakova, A. A. Bush, “Effect of BiFeO<nobr>$_3$</nobr> ceramics morphology on electrodynamic properties in the terahertz frequency range”, Fizika Tverdogo Tela, 2012, Volume 54, Issue 6,Pages <nobr>1120

This article is cited in 7 papers

Magnetism

Effect of BiFeO$_3$ ceramics morphology on electrodynamic properties in the terahertz frequency range

G. A. Komandin^a, V. I. Torgashev^b, A. A. Volkov^a, O. E. Porodinkov^a, A. A. Pronin^a, L. D. Iskhakova^c, A. A. Bush^d

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Southern Federal University, Rostov-on-Don
^c Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^d Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University), Moscow, 117454, Russia

Abstract: The nature of the contribution (additional to the phonon one) to the permittivity of bismuth ferrite ceramics has been studied using submillimeter and Fourier transform infrared spectroscopy. It has been shown that its numerical value depends on morphological features of samples, and the nature is determined by the defectness and crystallite interfaces. The effect of structure-phase features of bismuth ferrite ceramics on antiferromagnetic resonance line frequencies is indicated.

Received: 15.11.2011