A. A. Bush, A. A. Gippius, A. V. Zalesskii, E. N. Morozova, “$^{209}$Bi NMR spectrum of BiFeO$_3$ in the presence of spatial modulation of hyperfine fields”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2003, Volume 78, Issue 6,Pages 841

This article is cited in 13 papers

$^{209}$Bi NMR spectrum of BiFeO$_3$ in the presence of spatial modulation of hyperfine fields

A. A. Bush^a, A. A. Gippius^b, A. V. Zalesskii^c, E. N. Morozova^b

^a Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University)
^b M. V. Lomonosov Moscow State University
^c Institute of Cristallography Russian Academy of Sciences, Moscow

Abstract: A complicated spin-echo spectrum was observed for $^{209}$Bi nuclei in a ferroelectric antiferromagnet BiFeO$_3$ in zero external field. This spectrum is the first example of nuclear quadrupole resonance of a system of diamagnetic atoms in a hyperfine magnetic field produced by the spatially modulated Fe$^{3+}$ spin system and varying in orientation and magnitude. An attempt is undertaken to theoretically simulate the spectrum.

PACS: 75.25.+z, 76.60.Lz

Received: 18.08.2003