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Optical investigation of the metal-insulator transition in FeSb2

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Academic year: 2021

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Figure

Fig. 1. FeSb 2 sample used for our optical investigations. The crystal axes, determined through the Laue spectroscopic ex-periment, are also shown.
Fig. 4. (Color online) Real part σ 1 (ω) of the optical con- con-ductivity at 10 and 150 K of FeSb 2 in the far infrared range (30–350 cm −1 ), with light polarized along (a) and perpendic-ular (b) to the b crystallographic axis
Table 3. Normal modes analysis of FeSb 2 for the P nnm symmetry group.
Fig. 5. (Color online) (a) Blow-up of σ 1 ( ω ) around the mode at 261 cm −1 at 10 K and for E ⊥ b
+2

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