X-ray studies of Fe3−xMexO4, Me=Zn, Ti and Al; the impact of doping on the Verwey transition

Magnetic and structural properties of pure and Cr-doped haematite: α-Fe2−xCr x O3 (0 ≤ x ≤ 1)

“…The substitution effect in -Fe 2 O 3 at Fe site influences the electrical, magnetic and other physical  in the scientific community as the dopant like Zn ions substituting for Fe 3+ in the corundum-related structure leads to formation of cationic and anionic vacancies [2][3][4][5][6]. The effect of substitution of Cr and Mn ions in GaFeO 3 manifests itself and can be delineated starting with suitable oxide precursors preferentially containing Cr (Mn) in the Ga or Fe site.…”

“…The effect of substitution of Cr and Mn ions in GaFeO 3 manifests itself and can be delineated starting with suitable oxide precursors preferentially containing Cr (Mn) in the Ga or Fe site. It is noteworthy that Cr (Mn) substitution in the octahedral Fe (1,2) site of GaFeO 3 has marked effects on the structural parameters and magnetic properties, while substitution in the octahedral Ga 2 site has marginal effects [2][3][4][5][6][7][8].…”

“…The magnetic and structural properties of haematite are also affected by particle size [7,8], degree of crystallinity [9], pressure [10], doping [2][3][4][5][6], and mechanical alloying [11] due to its technological applications. It is noticed that depending upon milling conditions, structural phase transformations of nanostructured haematite to maghemite, magnetite and wüstite can be induced.…”