Infrared reflectivity of BaMnF4
| ISSN: |
1572-9486
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract The polarized reflectivity of BaMnF4 single crystals was measured in the 20–600 cm−1 range for temperatures from 10 to 300 K. The results were evaluated using Kramers-Kronig analysis to obtain the dielectric function. The number of active modes in the high temperature polar phase (T〉T i ≃250K) is in agreement with group-theoretical expectation. In the incommensurate phaseT〈T i the number of active modes increases more than two times. All the results are in reasonable agreement with previous Raman and far infrared data.
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| Type of Medium: |
Electronic Resource
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| URL: |