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cond-mat.mtrl-sci2003
Phonon Activity and a Possible Lattice Arrangement in the Intermediate Phase of YVO3
Nestor E. Massa, Cinthia Piamonteze, Helio C. N. Tolentino +3
We show that in YVO3 new hard phonons gradually become zone center active below ~210 K verifying that a lattice phase transition takes place at about that temperature. The Debye-Wa…
cond-mat.mtrl-sci2003
Small Polaron Localization, Jahn-Teller Distortion and Defects in La0.67Ca0.33MnO3: An Infrared Spectroscopy and X-ray Absorption Analysis
Nestor E. Massa, Helio C. N. Tolentino, Horacio Salva +3
We combine infrared reflectivity and EXAFS (Extended X-ray Absorption Fine Structure) techniques to study the solid solution La0.67Ca0.33MnO3 prepared by different methods yielding…