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arXiv · 1305.1377

Determination of the Local Symmetry and the Multiferroic-ferromagnetic Crossover in Ni3-xCoxV2O8 by using Raman Scattering Spectroscopy

Yu-Seong Seo·Sun-Hwa Kim·Jai Seok Ahn·Il-Kyoung Jeong
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Abstract

Comprehensive vibrational studies on the multiferroic-to-normal-ferromagnetic crossover in isostructural Ni3-xCoxV2O8 (NCVO, x = 0 - 3.0) are performed using Raman scattering spectroscopy. The systematically red-shifted phonon modes are discussed in terms of the mode Gr\"uneisen parameters, and are interpreted as a chemical pressure effect. In addition, we present evidence that the local symmetry is broken in the multiferroic phase.

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Yu-Seong Seo, Sun-Hwa Kim, Jai Seok Ahn, Il-Kyoung Jeong. 2013-05-07. Determination of the Local Symmetry and the Multiferroic-ferromagnetic Crossover in Ni3-xCoxV2O8 by using Raman Scattering Spectroscopy. https://doi.org/10.3938/jkps.62.116

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