Details

Autor(en) / Beteiligte

• Zhang, W-L
• Song, Y
• Wang, W-Y
• Cao, C-D
• Dai, P-C
• Jin, C-Q
• Blumberg, G

Titel

Raman scattering study of NaFe0.53Cu0.47As

Ist Teil von

• Physical review. B, 2018-09, Vol.98 (9), p.094512

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2018

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We use polarization-resolved Raman scattering to study lattice dynamics in NaFe0.53Cu0.47As single crystals. We identify four A1g phonon modes, at 126, 172, 183, and 197 cm−1, and four B3g phonon modes at 101, 139, 173, and 226 cm−1(D4h point group). The phonon spectra are consistent with the Ibam space group, which confirms that the Cu and Fe atoms form a stripe order. The temperature dependence of the phonon spectra suggests weak electron-phonon and magnetoelastic interactions.