References
- Ao , R. and Schaack , G. 1988a . Far-infrared spectroscopic investigation of the incommensurate and commensurate phases in ferroelectric betaine calcium chloride dihydrate (BCCD) . Ferroelectrics , 80 : 105
- Ao , R. and Schaack , G. 1988b . Raman spectroscopic investigation of various commensurate and incommensurate phases in ferroelectric betaine calcium chloride dihydrate (BCCD) . Indian J. Pure Appl. Phys. , 26 : 124
- Currat , R. , Legrand , J. F. , Kamba , S. , Petzelt , J. , Dvořák , V. and Albers , J. 1990 . Inelastic neutron scattering study of the soft phonon branch in deuterated BCCD . Solid State Commun. , 75 : 545
- Dvořák , V. 1990 . Theoretical aspects of phase transitions in betaine compounds. Proc. 7th Int. Meeting on Ferroelectricity . Ferroelectrics , 104 : 135
- Dvořák , V. , Holakovsk , J. and Petzelt , J. 1988 . Thermodynamic theories of phase transitions in betaine compounds . Ferroelectrics , 79 : 15
- Dvořák , V. and Petzelt , J. 1978 . Infrared and Raman activity of soft modes in the incommensurate structure . J. Phys. C: Solid State Phys. , 11 : 4827
- Fayet , J. C. 1990 . Private communication. ,
- Freitag , O. and Unruh , H.-G. 1990 . Dielectric and thermal behaviour of betaine calcium chloride dihydrate in an electric bias field. Proc. 7th Int. Meeting on Ferroelectricity. . Ferroelectrics , 105 : 357
- Holakovsk , J. 1973 . A new type of the ferroelectric phase transition . Phys. stat. sol. (b) , 56 : 615
- Janssen , T. and Tjon , J. A. 1982 . Microscopic model for incommensurate crystal phases . Phys. Rev. B , 25 : 3767
- Kroupa , J. , Albers , J. and Ivanov , N. R. 1990 . Birefringence and indicatrix rotation in BCCD. Proc. 7th Int. Meeting on Ferroelectricity . Ferroelectrics , 105 : 345
- Meekes , H. and Janner , A. 1988 . Optical activity in the incommensurate structure Rb2ZnBr4 . Phys. Rev. B , 38 : 8075
- Pérez-Mato , J. H. 1988 . Symmetry analysis of the phase transition sequence in betaine calcium chloride dihydrate . Solid State Commun. , 67 : 1145
- Ribeiro , J. L. , Fayet , J. C. , Emery , J. , Pézeril , M. , Albers , J. , Klöpperpieper , A. , Almeida , A. and Chaves , M. R. 1988 . EPR in Mn2+ doped betaine calcium chloride dihydrate single crystals . J. Physique , 49 : 813
- Siems , R. and Tentrup , T. 1989 . Domain walls in pseudo spin systems . Ferroelectrics , 98 : 303
- Unruh , H.-G. 1988 . Private communication. ,
- Unruh , H.-G. , Hero , F. and Dvořák , V. 1989 . On the incomplete devil's staircase of betaine calcium chloride dihydrate . Solid State Commun. , 70 : 403
- Wilhelm , H. and Unruh , H.-G. 1988 . Private communication. ,
- Zúniga , F. J. , Ezpeleta , J. M. , Pérez-Mato , J. M. , Paciorek , W. and Madariaga , G. Structure of the incommensurate phase of BCCD at 130 K. Proc. Transphase 3. Phase Transitions, in these Proceedings.