61 citations · 394 across the 13 of their papers we have counts for
13 papers
Cr doping-induced ferromagnetism in the spin-glass Cd1-xMnxTe studied by x-ray magnetic circular dichroism
V. K. Verma, S. Sakamoto, K. Ishikawa +7
The prototypical diluted magnetic semiconductor Cd1-xMnxTe is a spin glass (x<0.6) or an antiferromagnet (x>0.6), but becomes ferromagnetic upon doping with a small amount of Cr at…
Thickness-dependent magnetic properties and strain-induced orbital magnetic moment in SrRuO3 thin films
K. Ishigami, K. Yoshimatsu, D. Toyota +16
Thin films of the ferromagnetic metal SrRuO3 (SRO) show a varying easy magnetization axis depending on the epitaxial strain and undergo a metal-to-insulator transition with decreas…
Electronic and magnetic properties of off-stoichiometric CoMnSi/MgO interfaces studied by x-ray magnetic circular dichroism
V. R. Singh, V. K. Verma, K. Ishigami +8
We have studied the electronic and magnetic states of Co and Mn atoms at the interface of the CoMnSi (CMS)/MgO (=0.69, 0.99, 1.15 and 1.29) magnetic tunnel junc…
Orbital magnetic moment and coercivity of SiO-coated FePt nanoparticles studied by x-ray magnetic circular dichroism
Y. Takahashi, T. Kadono, V. R. Singh +11
We have investigated the spin and orbital magnetic moments of Fe in FePt nanoparticles in the 1-ordered phase coated with SiO by x-ray absorption spectroscopy (XAS)…
Role of doped Ru in coercivity-enhanced LaSr_3$ thin film studied by x-ray magnetic circular dichroism
T. Harano, G. Shibata, K. Ishigami +15
The coercivity of LaSrMnO thin films can be enhanced by Ru substitution for Mn. In order to elucidate its mechanism, we performed soft x-ray absorption and magnetic…
Enhanced ferromagnetic moment in Co-doped BiFeO3 thin films studied by soft X-ray circular dichroism
V. R. Singh, V. K. Verma, K. Ishigami +10
BiFeO (BFO) shows both ferroelectricity and magnetic ordering at room temperature but its ferromagnetic component, which is due to spin canting, is negligible. Substitution of…
X-ray absorption spectroscopy and X-ray magnetic circular dichroism studies of transition-metal-co-doped ZnO nano-particles
T. Kataoka, Y. Yamazaki, V. R. Singh +15
We report on x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) studies of the paramagnetic (Mn,Co)-co-doped ZnO and ferromagnetic (Fe,Co)-co-doped Zn…
Ferromagnetism of cobalt-doped anatase TiO studied by bulk- and surface-sensitive soft x-ray magnetic circular dichroism
V. R. Singh, K. Ishigami, V. K. Verma +11
We have studied magnetism in anatase TiCoO ({\it x} = 0.05) thin films with various electron carrier densities, by soft x-ray magnetic circular dichroism (XMCD)…
Electronic configuration of Mn ions in the -d molecular ferromagnet -Mn phthalocyanine studied by soft x-ray magnetic circular dichroism
T. Kataoka, Y. Sakamoto, Y. Yamazaki +9
We have studied the electronic structure of the molecular ferromagnet -Mn phthalocyanine (-MnPc) in a polycrystalline form, which has been reported to show ferromagnetism at…
Ferromagnetism in ZnO co-doped with Mn and N studied by soft x-ray magnetic circular dichroism
T. Kataoka, Y. Yamazaki, V. R. Singh +12
We have investigated the electronic structure of ZnO:Mn and ZnO:Mn,N thin films using x-ray magnetic circular dichroism (XMCD) and resonance-photoemission spectroscopy. From the Mn…
Ferromagnetic interaction between Cu ions in the bulk region of Cu-doped ZnO nanowires
T. Kataoka, Y. Yamazaki, V. R. Singh +9
We have studied the electronic structure and the magnetism of Cu-doped ZnO nanowires, which have been reported to show ferromagnetism at room temperature [G. Z. Xing .…
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
V. R. Singh, Y. Sakamoto, T. Kataoka +10
We have studied magnetism in Ti_[1-x]Co_xO_[2-δ] thin films with various x and δby soft x-ray magnetic circular dichroism (XMCD) measurements at the Co L_[2,3] absorption edges. Th…
Effect of co-doping of donor and acceptor impurities in the ferromagnetic semiconductor Zn1-xCrxTe studied by soft x-ray magnetic circular dichroism
Y. Yamazaki, T. Kataoka, V. R. Singh +8
We have performed x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) studies of the diluted ferromagnetic semiconductor ZnCr$_\textit…