61 citations · 240 across the 10 of their papers we have counts for
10 papers
Orbital magnetic moments in FeCr2S4 studied by x-ray magnetic circular dichroism
V. K. Verma, J. Patra, V. R. Singh +8
We have investigated the element specific magnetic characteristics of single-crystal FeCr2S4 using x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD).…
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…
Thickness-dependent ferromagnetic metal to paramagnetic insulator transition in LaSrMnO thin films studied by x-ray magnetic circular dichroism
Goro Shibata, Kohei Yoshimatsu, Enju Sakai +14
Metallic transition-metal oxides undergo a metal-to-insulator transition (MIT) as the film thickness decreases across a ritical thickness of several monolayers (MLs), but its drivi…
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)…
Phase diagram of CaCeMnO thin films studied by X-ray magnetic circular dichroism
T. Harano, G. Shibata, K. Yoshimatsu +14
In the perovskite-type CaCeMnO (CCMO), one can control the transport and magnetic properties through varying Ce content. In the case of thin films, the properti…
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…
Observation of magnetically hard grain boundaries in double-perovskite SrFeMoO
Y. Takahashi, V. K. Verma, G. Shibata +12
Unusual low temperature magneto-resistance (MR) of ferromagnetic SrFeMoO polycrystals has been attributed to magnetically hard grain boundaries which act as spin valves…
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…