OPTICAL PHENOMENA IN BaMnF4 NEAR ITS PHASE TRANSITION TEMPERATURES.

R. V. Pisarev, B. B. Krichevtzov, P. A. Markovin, O. Yu Korshunov, J. F. Scott

Research output: Contribution to journalConference articlepeer-review

Abstract

Measurements of indices of refraction, birefringence, rotation of optical ellipsoid and optical activity have been made near incommensurate phase transition temperature and near two- and three-dimensional magnetic ordering temperatures in BaMnF//4. The results are compatible with a single first order structural phase transition at T//I equals 251 K. The point group symmetry below T//I is shown to be 2(C//2) or lower. Magnetic contribution to the refractive index at low temperatures is obtained. 9 refs.

Original languageEnglish
Pages (from-to)1103-1106
Number of pages4
JournalFerroelectrics
Volume56
Issue number1-2
StatePublished - 1 Jan 1983
EventProc of the Eur Meet on Ferroelectr, 5th - Malaga, Sp
Duration: 26 Sep 198330 Sep 1983

Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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