论文信息 - Spiral magnetic ordering in bismuth ferrite

Spiral magnetic ordering in bismuth ferrite

New information on the magnetic ordering of the iron ions in bismuth ferrite BiFeO3 was obtained by a study with a high-resolution time-of-flight neutron diffractometer. The observed splitting of magnetic diffraction maxima could be interpreted in terms of a magnetic cycloidal spiral with a long period of 620+or-20 AA, which is unusual for perovskites.

[1] S. Lahiry,et al. Thermoremanent Magnetization in Bi2O3 · Fe2O3 System , 1981 .

[2] Robert Gerson,et al. The atomic structure of BiFeO3 , 1969 .

[3] Robert Gerson,et al. Dielectric hysteresis in single crystal BiFeO3 , 1970 .

[4] P. Fischer,et al. Temperature dependence of the crystal and magnetic structures of BiFeO3 , 1980 .

[5] C. Blaauw,et al. Magnetic and structural properties of BiFeO3 , 1973 .

[6] R. E. Watson,et al. Hartree–Fock atomic scattering factors for the iron transition series , 1961 .

[7] J. Moreau,et al. Ferroelectric BiFeO3 X-ray and neutron diffraction study , 1971 .

[8] W. James,et al. The precision determination of the lattice parameters and the coefficients of thermal expansion of BiFeO3 , 1972 .

[9] A. Jacobson,et al. A neutron diffraction study of the nuclear and magnetic structure of BiFeO3 , 1975 .

[10] E. Steichele,et al. A high resolution neutron time of flight diffractometer , 1973 .

[11] G. D. Achenbach,et al. Preparation of Single‐Phase Polycrystalline BiFeO3 , 1967 .