Add to ORKG<正> I. INTRODUCTION In recent years, the A_2BX_4-type crystals have attracted much attention, for they have a series of phase transitions, especially the incommensurate phase in a certain temperature range. K_2SeO_4 is the most typical in this family, which has already been widely investigated. Rb_2...171166-116
We have made detailed lattice-dynamical studies of the origin of the incommensurate phase transition...
Raman scattering and optical birefringence were used in to investigate a low-temp. phase transition ...
The temperature dependence of the thermal expansion in the vicinity of the incommensurate phase tran...
The Raman spectra of K2ZnCl4 single crystals have been measured over the temperature range covering ...
It is shown that the potential-energy surface in K2ZnCl4 contains a double-well structure, very simi...
The continuous phase transitions are observed in the crystals with incommensurate phase. They are tr...
It is shown that the potential-energy surface in K2ZnCl4 contains a double-well structure, very simi...
The order of the phase transitions at Tc = 189 and Ti = 302 K for $(Rb_2ZnCl_4)$ was determined by t...
In order to describe a normal-incommensurate transition in A2BX4-type crystals, a two-sublattice mod...
Within Landau theory of phase transitions in A2BX4 — type crystals we introduce in the free energy a...
Four homologues of the new series 4-alkoxybenzylidene-4'-(4"-cyanobenzoyloxy) aniline are presented....
peer reviewedTemperature dependences of the dielectric constants [epsilon]i and of the birefringence...
International audienceNew representatives of the A2M3(SO4)4 (A = Rb and Cs, M = Co, Ni) family were ...
Abstract. The crystal structure of ferroelastic $Rb_4Li(HSO_4)_3(SO_4)$ has been determined at two t...
X-ray studies of LiNH4SO4 between 295 K and 10 K show a phase transition at 11 °C, and a new transit...
We have made detailed lattice-dynamical studies of the origin of the incommensurate phase transition...
Raman scattering and optical birefringence were used in to investigate a low-temp. phase transition ...
The temperature dependence of the thermal expansion in the vicinity of the incommensurate phase tran...
The Raman spectra of K2ZnCl4 single crystals have been measured over the temperature range covering ...
It is shown that the potential-energy surface in K2ZnCl4 contains a double-well structure, very simi...
The continuous phase transitions are observed in the crystals with incommensurate phase. They are tr...
It is shown that the potential-energy surface in K2ZnCl4 contains a double-well structure, very simi...
The order of the phase transitions at Tc = 189 and Ti = 302 K for $(Rb_2ZnCl_4)$ was determined by t...
In order to describe a normal-incommensurate transition in A2BX4-type crystals, a two-sublattice mod...
Within Landau theory of phase transitions in A2BX4 — type crystals we introduce in the free energy a...
Four homologues of the new series 4-alkoxybenzylidene-4'-(4"-cyanobenzoyloxy) aniline are presented....
peer reviewedTemperature dependences of the dielectric constants [epsilon]i and of the birefringence...
International audienceNew representatives of the A2M3(SO4)4 (A = Rb and Cs, M = Co, Ni) family were ...
Abstract. The crystal structure of ferroelastic $Rb_4Li(HSO_4)_3(SO_4)$ has been determined at two t...
X-ray studies of LiNH4SO4 between 295 K and 10 K show a phase transition at 11 °C, and a new transit...
We have made detailed lattice-dynamical studies of the origin of the incommensurate phase transition...
Raman scattering and optical birefringence were used in to investigate a low-temp. phase transition ...
The temperature dependence of the thermal expansion in the vicinity of the incommensurate phase tran...