Tuning of ferromagnetism through anion substitution in Ga–Mn–pnictide ferromagnetic semiconductors

• Published in: Physica. B, Condensed matter Vol. 401; pp. 454 - 457
• Main Authors: Stone, Peter R., Beeman, Jeffrey W., Yu, Kin M., Dubon, Oscar D.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.12.2007
• Subjects: Ferromagnetic semiconductors; Gallium manganese arsenide; Gallium manganese phosphide; Magnetic anisotropy; Metal–insulator transition; Metal–insulator transition; Ferromagnetic semiconductors; Gallium manganese arsenide; Gallium manganese phosphide; Magnetic anisotropy

We have synthesized Ga 1− x Mn x As 1− y P y and Ga 1− x Mn x P 1− y N y by the combination of ion implantation and pulsed-laser melting. We find that the incorporation of isovalent impurities with smaller atomic radii leads to a realignment of the magnetic easy axis in Ga 1− x Mn x P 1− y N y /GaP...