Phonon-mode characterization of orthorhombic and tetragonal YBa 2 Cu 3 O 7- δ single crystals by Raman spectroscopy, L.V. Gasparov, G.A. Emel'chenko, V.D. Kulakovskii, O.V. Misochko, V.B. Timofeev, E.I. Rashba
Lev V Gasparov