Low-temperature structural phase transition in (C2H5NH3)2MnCl4 layered crystals
V. P. GnezdilovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. V. EremenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. S. KurnosovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. I. FominPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Аннотация
The structural phase transition (PT) in (C2H5NH3)2MnCl4 layered crystal at Tc = 47 K is studied by the Raman scattering method. It is found that in contrast to the Cd-containing compound with a similar chemical composition, the low-temperature PT in the given crystal occurs without a multiple reduction of volume of a unit cell. The changes in the Raman spectra point towards the difference between the transition under investigation from PT observed in other similar compounds.
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