Journal ArticleDOI
Raman study of soft zone-boundary phonons and antiferrodistortive phase transition in BaMnF4
J.F. Ryan,James F. Scott +1 more
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In this paper, it was shown that BaMnF4 has a second-order phase transition and a soft phonon at the Brillouin zone boundary of the orthorhombic C122V phase.About:
This article is published in Solid State Communications.The article was published on 1974-01-01. It has received 49 citations till now. The article focuses on the topics: Brillouin zone & Phase transition.read more
Citations
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REVIEWS OF TOPICAL PROBLEMS: Ferroelectromagnets
G. A. Smolenskiĭ,I. E. Chupis +1 more
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Phase transitions in BaMnF4
TL;DR: BaMnF4 as mentioned in this paper is a pyroelectric ferromagnet which displays a number of unusual physical characteristics, some of which are unique, such as its dielectric anomalies at its Neel temperature.
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Multiferroic magnetoelectric fluorides: why are there so many magnetic ferroelectrics?
James F. Scott,Robert Blinc +1 more
TL;DR: The main families of magnetic fluorides that are piezoelectric and probably ferroelectric are described, namely the K(3)Fe(5)F(15) and Pb( 5)Cr(3]F(19) families.
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Dielectric and light scattering spectroscopy of incommensurate phases in crystals
TL;DR: In this paper, a review of all the corresponding experimental data published up to the middle of 1980 are reviewed and consistently interpreted taking into account the specific selection rules recenily derived.
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Raman Scattering Spectra of Rb 2 ZnCl 4
TL;DR: In this article, the Raman scattering spectra of Rb 2 ZnCl 4 single crystals were measured over the temperature range covering the successive phase transitions at T 1 =302 K and T 2 =189 K.
References
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The Raman effect in crystals
TL;DR: A review of progress in the theoretical and experimental study of the Raman effect in crystals during the past ten years is given in this article, where the theory of those properties of long-wavelength lattice vibrations in both cubic and uniaxial crystals which can be studied by Raman scattering.
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Soft Phonon Modes and the 110°K Phase Transition in SrTiO3
TL;DR: The structure of SrTiO3 has been the subject of X-ray, infrared, [2] ESR, [3-5] neutron, [6] and Raman [7-10] spectroscopic investigations since 1962 as discussed by the authors.
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Crystal Structure of Pyroelectric Paramagnetic Barium Manganese Fluoride, BaMnF4
TL;DR: BaMnF4, pyroelectric at room temperature and paramagnetic above 30°K, crystallizes in the orthorhombic system with space group A21am and lattice constants a
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Raman Study of Trigonal-Cubic Phase Transitions in Rare-Earth Aluminates
TL;DR: In this article, the Raman spectra of LaAl, PrAl, and NdAl have been observed at temperatures from 10 to 1135\ifmmode^\circ\else\text degree\fi{}K.
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Ferroelectricity in BaM2+F4
TL;DR: In this article, the piezoelectric compounds BaM2+F4 (M = Mg, Co, Niand Zn) were shown to be ferroelectric at room temperature.