Distortion-dependent Raman spectra and mode mixing in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>R</mml:mi><mml:msub><mml:mi>MnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>perovskites<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo>(</mml:mo><mml:mi>R</mml:mi><mml:mo>=</mml:mo><mml:mi>La</mml:mi><mml:mo>,</mml:mo><mml:mi>Pr</mml:mi><mml:mo>,</mml:mo><mml:mi>Nd</mml:mi><mml:mo>,</mml:mo><mml:mi>Sm</mml:mi><mml:mo>,</mml:mo><mml:mi>Eu</mml:mi><mml:mo>,</mml:mo><mml:mi>Gd</mml:mi><mml:mo>,</mml:mo><mml:mi>Tb</mml:mi><mml:mo>,</mml:mo><mml:mi>Dy</mml:mi><mml:mo>,</mml:mo><mml:mi>Ho</mml:mi><mml:mo>,</mml:mo><mml:mi mathvariant="normal">Y</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math>

N. Iliev, M.; V. Abrashev, M.; Laverdière, J.; Jandl, S.; Gospodinov, M.; Wang, Y.-Q.; Sun, Yanyi

doi:10.1103/physrevb.73.064302

Public

Distortion-dependent Raman spectra and mode mixing inRMnO3perovskites(R=La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Y)

Published in Physical Review B • Feb 16, 2006

Authors:

M. N. Iliev

M. V. Abrashev

J. Laverdière

Abstract

The polarized Raman spectra of orthorhombic $R{\mathrm{MnO}}_{3}$ series $(R=\mathrm{La},\mathrm{Pr},\mathrm{Nd},\mathrm{Sm},\mathrm{Eu},\mathrm{Gd},\mathrm{Tb},\mathrm{Dy},\mathrm{Ho},\mathrm{Y})$ were studied at room temperature. The variation of phonon frequencies with $R$ ionic radius ${r}_{R}$ ...

Subject

Raman spectroscopy

Physics

Antiferromagnetism

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