Scientific article
Open access

Evidence for the magnetoelectric effect in nickel-bromine boracite, Ni3B7O13Br

Published inFerroelectrics, vol. 55, no. 1, p. 295-298
Publication date1984

A ferromagnetic/ferroelec./ferroelastic phase, consistent with Point Group m'm2' and TC(f.m.) = 17 K, was identified by measurements of the magnetoelec. coeff. α32, peak value at TC (7 ps/m), and the ferromagnetic coercive field, Hc, vs. temp. A magnetoelec. effect persists above 17 K up to ∼30 K, indicating a phase of still unknown nature. The dielec. const. ε33 is insensitive to magnetic ordering, but a striking anomaly of spontaneous polarization, Ps, occurs in the magnetic ordering range and is attributed to a spontaneous magnetoelec. interaction. Further, Ps is (290 nC/cm2) at TC(f.e.).

  • Magnetoelectric effect
  • Ferroelectricity
  • Dielectric constant and dispersion
  • Magnetoelec effect nickel bromine boracite
  • Ferroelectricity nickel bromine boracite
  • Swiss National Science Foundation - 1983
Citation (ISO format)
RIVERA, Jean-Pierre, SCHMID, Hans. Evidence for the magnetoelectric effect in nickel-bromine boracite, Ni<sub>3</sub>B<sub>7</sub>O<sub>13</sub>Br. In: Ferroelectrics, 1984, vol. 55, n° 1, p. 295–298. doi: 10.1080/00150198408015393
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Article (Accepted version)
ISSN of the journal0015-0193

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