3:1 magnetization plateau and suppression of ferroelectric polarization in an Ising chain multiferroic

Y. J. Jo, Seongsu Lee, E. S. Choi, H. T. Yi, W. Ratcliff, Y. J. Choi, V. Kiryukhin, S. W. Cheong, L. Balicas

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Ferroelectric Ising chain magnet Ca3Co2-xMn xO6 (x≃0.96) was studied in magnetic fields of up to 33 T. Magnetization and neutron-scattering measurements reveal successive metamagnetic transitions from the zero-field ↑↑↓↓ spin configuration to the ↑↑↑↓ state with a broad magnetization plateau, and then to the ↑↑↑↑ state. The absence of hysteresis in these plateaus reveals an intriguing coupling between the intrachain state and the three-dimensional geometrically frustrated magnetic system. Inversion symmetry, broken in the ↑↑↓↓ state, is restored in the ↑↑↑↓ state, leading to the complete suppression of the electric polarization driven by symmetric superexchange.

Original languageEnglish
Article number012407
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number1
Publication statusPublished - 2009 Jan 5


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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