Title variants
Languages of publication
Abstracts
A short-range force constant model has been applied using normal coordinate analysis to investigate the Raman and the infrared modes in multiferroic MnWO_4 having space group P2/c. The calculation of zone centre phonons has been made with eight stretching and seven bending force constants. The calculated Raman and infrared wave numbers are in good agreement with the observed ones. The potential energy distribution has also been investigated for determining the significance of contribution from each force constant toward the Raman and the infrared wave numbers.
Discipline
- 61.50.Ah: Theory of crystal structure, crystal symmetry; calculations and modeling
- 63.70.+h: Statistical mechanics of lattice vibrations and displacive phase transitions
- 75.10.Pq: Spin chain models
- 63.22.Dc: Free films
- 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
Journal
Year
Volume
Issue
Pages
142-145
Physical description
Dates
published
2012-07
received
2011-12-15
(unknown)
2012-02-20
Contributors
author
- Department of Physics, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi-110016, India
author
- Department of Physics, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur-148106, India
author
- Department of Physics, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur-148106, India
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv122n1p27kz