First Principle Study of the Mechanical Properties and Phonon Dispersion of the Iron Pnictide Compound EuFe<sub>2</sub>As<sub>2</sub>

<div>The phonon dispersion curve. The optical (upper) mode and the acoustic (lower) mode are clearly differentiated. Given that europium diiron diarsenide has got five atoms, there are 15 modes of vibration. The acoustic modes converge at the gamma high symmetry point as shown in Figure <a href="../fig4/">4</a>.</div>

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Figure 4

Figure 4: First Principle Study of the Mechanical Properties and Phonon Dispersion of the Iron Pnictide Compound EuFe<sub>2</sub>As<sub>2</sub> 

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First Principle Study of the Mechanical Properties and Phonon Dispersion of the Iron Pnictide Compound EuFe2As2

Figure 4

First Principle Study of the Mechanical Properties and Phonon Dispersion of the Iron Pnictide Compound EuFe₂As₂