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11 papers · 2 filters
Electrically driven spin excitation in a ferroelectric magnet DyMnO_3
N. Kida, Y. Ikebe, Y. Takahashi +7
Temperature (5--250 K) and magnetic field (0--70 kOe) variations of the low-energy (1--10 meV) electrodynamics of spin excitations have been investigated for a complete set of ligh…
Void-induced cross slip of screw dislocations in fcc copper
Takahiro Hatano, Tetsuya Kaneko, Yousuke Abe +1
Pinning interaction between a screw dislocation and a void in fcc copper is investigated by means of molecular dynamics simulation. A screw dislocation bows out to undergo depinnin…
Spin-dependent tunneling and Coulomb blockade in ferromagnetic nanoparticles
Kay Yakushiji, Franck Ernult, Seiji Mitani +2
We review studies on spin-dependent tunneling phenomena in systems containing ferromagnetic nanoparticles. We discuss preparation methods of assembling nanoparticles as well as the…
X-ray Anomalous Scattering of Diluted Magnetic Oxide Semiconductors: Possible Evidence of Lattice Deformation for High Temperature Ferromagnetism
Takeshi Matsumura, Daisuke Okuyama, Shinya Niioka +7
We have examined whether the Co ions crystallographically substitute on the Ti sites in rutile and anatase Ti_{1-x}_{x}_{2-delta}$ thin films that exhibit room-temperature f…
On the character of states near the Fermi level in (Ga,Mn)As: impurity to valence band crossover
T. Jungwirth, Jairo Sinova, A. H. MacDonald +15
We discuss the character of states near the Fermi level in Mn doped GaAs, as revealed by a survey of dc transport and optical studies over a wide range of Mn concentrations. A ther…
The structural and magnetic properties of (In1-xFex)2O3 (0.0 <= x <= 0.25) system : prepared by gel combustion method
O. D. Jayakumar, I. K. Gopalakrishnan, S. K. Kulshreshtha +9
(In1-xFex)2O3 polycrystalline samples with x = (0.0, 0.05, 0.10, 0.15, 0.20 and 0.25) have been synthesized by a gel combustion method. Reitveld refinement analysis of X raydiffrac…