Lack of a threefold rotation axis in α-Fe2O3 and α-Cr2O3 crystals

Ste˛kiel, M.; Przenioslo, R.; Sosnowska, I.; Fitch, A.; Jasiński, J.B.; Lussier, J.A.; Bieringer, M.

doi:10.1107/S205252061500342X

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 4
Schematic representation of the main directions for the magnetic space group C2/c concerning α-Fe₂O₃. The unique monoclinic b_m axis is shown with the red arrow, while the perpendicular c_m axis is shown with the dotted black arrow. The grey circle is in the plane perpendicular to b_m which contains the AFM directions shown with blue and green vectors for temperatures below and above T_M, respectively. The black dots on the circumference belong to the hexagonal (001) plane.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 71| Part 2| March 2015| Pages 203-208

doi:10.1107/S205252061500342X

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