Evolution of ferromagnetic circular dichroism coincident with magnetization and anomalous Hall effect in Co-doped rutile TiO2

Abstract

Magnetic circular dichroism (MCD) of rutile Ti1-xCoxO2-d is systematically examined with various x and d to reveal a phase diagram for the appearance of ferromagnetism at higher carrier concentration and Co content. The phase diagram exactly matches with that determined from anomalous Hall effect (AHE). The magnetic field dependence of MCD also shows good coincidence with those of the magnetization and AHE. The coincidence of these independent measurements strongly suggests single and intrinsic ferromagnetic origin.

9 pages, 4 figures

References in corpus (4)

• Co-occurrence of Superparamagnetism and Anomalous Hall Effect in Highly Reduced Cobalt Doped Rutile TiO2 Films
• Exploration of oxide-based diluted magnetic semiconductors toward transparent spintronics
• Hall effect in cobalt-doped TiO${}_{2-\delta }$
• Optical properties of metallic (III,Mn)V ferromagnetic semiconductors in the infrared to visible range

Cited by in corpus (10)

• Theory of carrier mediated ferromagnetism in dilute magnetic oxides
• Electronic and magnetic properties of V-doped anatase TiO${}_2$ from first principles
• Indication of intrinsic room-temperature ferromagnetism in Ti1-xCoxO2-d thin film: An x-ray magnetic circular dichroism study
• A ferromagnetic oxide semiconductor as spin injection electrode in magnetic tunnel junction
• Role of charge carriers for ferromagnetism in cobalt-doped rutile TiO2
• Magneto-optic and transverse transport properties of non-collinear antiferromagnets
• Bulk and Surface Magnetization of Co atoms in Rutile Ti_[1-x]Co_xO_[2-delta] Thin Films Revealed by X-Ray Magnetic Circular Dichroism
• Anomalous Hall effect in anatase Ti1-xCoxO2 at low temperature regime
• X-ray Anomalous Scattering of Diluted Magnetic Oxide Semiconductors: Possible Evidence of Lattice Deformation for High Temperature Ferromagnetism
• Spin-dependent transport in nanocomposite C:Co films