References
- Valasek , J. 1920 . Phys. Rev. , 15 : 537
- Hablützel , J. 1939 . Helv. Phys. Acta , 12 : 489
- Bantle , W. 1942 . Helv. Phys. Acta , 15 : 373
- Hoshino , S. , Mitsui , T. , Jona , F. and Pepinsky , R. 1957 . Phys. Rev. , 107 : 1255
- Wilson , A. J. C. 1938 . Phys. Rev. , 54 : 1103
- Sandy , E. and Jones , R. V. 1968 . Phys. Rev. , 168 : 481
- Makita , Y. and Takagi , Y. 1958 . J. Phys. Soc. Japan , 13 : 367
- Noda , N. , Nozaki , R. and Shiozaki , Y. 2000 . Phys. Rev. B , 62 : 12040
- Oka , A. , Nozaki , R. and Shiozaki , Y. 1998 . J. Korean Phys. Soc. , 32 : S286
- Oka , A. , Nozaki , R. and Shiozaki , Y. 1999 . Ferroelectrics , 230 : 57
- Nakamura , E. , Mitsui , T. and Furuichi , J. 1963 . J. Phys. Soc. Japan , 18 : 1477
- Mitsui , T. 1958 . Phys. Rev. , 111 : 1259
- Suzuki , E. and Shiozaki , Y. 1996 . Phys. Rev. B , 53 : 5217
- Onodera , Y. 1970 . Progr. Theor. Phys. , 44 : 1477