TY - JOUR
KW - Transmission electron microscopy
KW - Nanoparticles
KW - Titanium dioxide
KW - Ferromagnetism
KW - Magnetic anisotropy
KW - Magnetization
KW - Doping (additives)
KW - Interfaces (materials)
KW - Coercive force
KW - Cobalt
KW - Electron diffraction
KW - Hysteresis loops
KW - Hall effect
KW - Magnetometers
KW - SQUIDs
KW - Diluted magnetic semiconductors (DMS)
KW - Remanence
KW - Magnetic semiconductors
KW - Rutherford backscattering spectroscopy
KW - Anomalous Hall effects (AHE)
KW - Superparamagnetism
AU - S.R Shinde
AU - S.B Ogale
AU - J.S Higgins
AU - H Zheng
AU - A.J Millis
AU - V.N Kulkarni
AU - Ramamoorthy Ramesh
AU - R.L Greene
AU - T Venkatesan
AB - Superparamagnetizm in highly reduced cobalt (Co)-doped rutile TiO 2-δfilms displaying an anomalous Hall effect (AHE) was investigated. The presence of nanosized superparamagnetic cobalt clusters of ∼8-10 nm size in the films at the interface was established using the magnetization and transmission electron microscopy. In a single-domain particle the easy directions of magnetization were separated by the anisotropy barrier. The results indicate the co-occurrence of superparamagnetizm and AHE.
BT - Physical Review Letters
DO - 10.1103/PhysRevLett.92.166601
LA - eng
M1 - 16
N1 - cited By 328
N2 - Superparamagnetizm in highly reduced cobalt (Co)-doped rutile TiO 2-δfilms displaying an anomalous Hall effect (AHE) was investigated. The presence of nanosized superparamagnetic cobalt clusters of ∼8-10 nm size in the films at the interface was established using the magnetization and transmission electron microscopy. In a single-domain particle the easy directions of magnetization were separated by the anisotropy barrier. The results indicate the co-occurrence of superparamagnetizm and AHE.
PB - American Physical Society
PY - 2004
SP - 166601
EP - 4
T2 - Physical Review Letters
TI - Co-occurrence of superparamagnetism and anomalous hall effect in highly reduced cobalt-doped rutile TiO2-δ films
VL - 92
SN - 00319007
ER -