论文信息 - Monoclinic–orthorhombic phase transition in Ba2Cu(HCOO)6 crystals: a Raman scattering study

Monoclinic–orthorhombic phase transition in Ba2Cu(HCOO)6 crystals: a Raman scattering study

The monoclinic–orthorhombic phase transition in Ba2Cu(HCOO)6 crystals, which takes place when the temperature is raised from 300 to 317 K, was analysed in the light of Raman scattering measurements. The disappearance of two modes related to HCOO vibrations is interpreted as the signature of phase transformation which is characterized by slight modifications in the atomic positions of HCOO in the unit cell. For the sake of completeness, we also show the evolution of the Raman spectrum from 50 to 300 K, where no phase transformation is observed. Copyright © 2002 John Wiley & Sons, Ltd.

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