398 citations · 3.5k across the 71 of their papers we have counts for
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Origin of magnetically dead layers in spinel ferrites grown on : Effects of post-deposition annealing studied by XMCD
Yosuke Nonaka, Yuki K. Wakabayashi, Goro Shibata +8
We study the electronic and magnetic states of as-grown and annealed (111)/(111) () thin films with various thicknes…
Magnetic anisotropy of the van der Waals ferromagnet CrGeTe studied by angular-dependent XMCD
M. Suzuki, B. Gao, G. Shibata +12
The van der Waals ferromagnet CrGeTe (CGT) has a two-dimensional crystal structure where each layer is stacked through van der Waals force. We have investigated the nat…
Large Orbital Magnetic Moment and Strong Perpendicular Magnetic Anisotropy in Heavily Intercalated FeTiS
Goro Shibata, Choongjae Won, Jaewook Kim +7
Titanium disulfide TiS, which is a member of the layered transition-metal dichalcogenides with the 1T-CdI-type crystal structure, is known to exhibit a wide variety of magn…
Alternation of Magnetic Anisotropy Accompanied by Metal-Insulator Transition in Strained Ultrathin Manganite Heterostructures
Masaki Kobayashi, Le Duc Anh, Masahiro Suzuki +6
Fundamental understanding of interfacial magnetic properties in ferromagnetic heterostructures is essential to utilize ferromagnetic materials for spintronic device applications. I…
Anisotropic Charge Distribution Induced by Spin Polarization in LaSrMnO Thin Films Studied by X-ray Magnetic Linear Dichroism
Goro Shibata, Kohei Yoshimatsu, Keisuke Ishigami +17
Magnetic anisotropy of epitaxially grown thin films is affected by the strain from the substrates due to a combined effect of distorted electronic structure and spin-orbit interact…
Systematic study of the electronic structure and the magnetic properties of a few-nm-thick epitaxial (Ni1-xCox)Fe2O4 (x = 0 - 1) layers grown on Al2O3(111)/Si(111) using soft X-ray magnetic circular dichroism: effects of cation distribution
Yuki K. Wakabayashi, Yosuke Nonaka, Yukiharu Takeda +10
We study the electronic structure and the magnetic properties of epitaxial (Ni1-xCox)Fe2O4(111) layers (x = 0 - 1) with thicknesses d = 1.7 - 5.2 nm grown on Al2O3(111)/Si(111) str…
Anisotropic spin-density distribution and magnetic anisotropy of strained LaSrMnO thin films: Angle-dependent x-ray magnetic circular dichroism
G. Shibata, M. Kitamura, M. Minohara +21
Magnetic anisotropies of ferromagnetic thin films are induced by epitaxial strain from the substrate via strain-induced anisotropy in the orbital magnetic moment and that in the sp…
Bulk and surface electronic properties of SmB6: a hard x-ray photoelectron spectroscopy study
Y. Utsumi, D. Kasinathan, K-T. Ko +10
We have carried out bulk-sensitive hard x-ray photoelectron spectroscopy (HAXPES) measurements on in-situ cleaved and ex-situ polished SmB6 single crystals. Using the multiplet-str…
Electronic structure and magnetic properties of magnetically dead layers in epitaxial CoFe2O4/Al2O3/Si(111) films studied by X-ray magnetic circular dichroism
Yuki K. Wakabayashi, Yosuke Nonaka, Yukiharu Takeda +10
Epitaxial CoFe2O4/Al2O3 bilayers are expected to be highly efficient spin injectors into Si owing to the spin filter effect of CoFe2O4. To exploit the full potential of this system…
Local 3d Electronic Structures of Co-Based Complexes with Medicinal Molecules Probed by Soft X-Ray Absorption
Kohei Yamagami, Hidenori Fujiwara, Shin Imada +8
We have examined the local 3d electronic structures of Co-Au multinuclear complexes with the medicinal molecules D-penicillaminate (D-pen) [Co{Au(PPh3)(D-pen)}2]ClO4 and [Co3{Au3(t…
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…
Electronic excitations of magnetic impurity state in diluted magnetic semiconductor (Ga,Mn)As
M. Kobayashi, H. Niwa, Y. Takeda +9
The electronic structure of doped Mn in (Ga,Mn)As is studied by resonant inelastic X-ray scattering (RIXS). From configuration-interaction cluster-model calculations, the line shap…
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…
Valence evaluation of LiMnO2 and related battery materials by x-ray absorption spectroscopy
H. Wadati, D. G. Hawthorn, T. Z. Regier +5
We present an x-ray absorption study of the oxidation states of transition-metal-ions of LiMnO2 and its related materials, widely used as cathodes in Li-ion batteries. The comparis…
Ising magnetism and ferroelectricity in CaCoMnO
Hua Wu, T. Burnus, Z. Hu +7
The origin of both the Ising chain magnetism and ferroelectricity in CaCoMnO is studied by electronic structure calculations and x-ray absorption spectroscopy…
Local electronic structure of Cr in the II-VI diluted ferromagnetic semiconductor ZnCrTe
M. Kobayashi, Y. Ishida, J. I. Hwang +16
The electronic structure of the Cr ions in the diluted ferromagnetic semiconductor ZnCrTe ( and 0.15) thin films has been investigated using x-ray magnetic circ…
X-ray magnetic circular dichroism and photoemission study of the diluted ferromagnetic semiconductor ZnCrTe
Y. Ishida, M. Kobayashi, J. I. Hwang +10
We have performed x-ray magnetic circular dichroism (XMCD) and valence-band photoemission studies of the diluted ferromagnetic semiconductor ZnCrTe. XMCD signals due to…
X-ray magnetic circular dichroism characterization of GaN/Ga1-xMnxN digital ferromagnetic heterostructure
J. I. Hwang, M. Kobayashi, G. S. Song +8
We have investigated the magnetic properties of a GaN/Ga1-xMnxN (x = 0.1) digital ferromagnetic heterostructure (DFH) showing ferromagnetic behavior using soft x-ray absorption spe…
Depth profile high-energy spectroscopic study of Mn-doped GaN prepared by thermal diffusion
J. I. Hwang, Y. Osafune, M. Kobayashi +9
We have performed an - depth profile study of Mn-doped GaN prepared by a low temperature thermal diffusion method using photoemission and x-ray absorption spectroscopy. I…
Soft x-ray magnetic circular dichroism study of weakly ferromagnetic ZnVO thin film
Y. Ishida, J. I. Hwang, M. Kobayashi +13
We performed a soft x-ray magnetic circular dichroism (XMCD) study of a ZnVO thin film which showed small ferromagnetic moment. Field and temperature dependences of V 2…
Indication of intrinsic room-temperature ferromagnetism in Ti1-xCoxO2-d thin film: An x-ray magnetic circular dichroism study
K. Mamiya, T. Koide, A. Fujimori +6
Soft x-ray magnetic circular dichroism (XMCD) measurements at the Co L2,3 edges of Co doped rutile TiO2 at room temperature have revealed clear multiplet features characteristic of…
Characterization of Magnetic Components in the Diluted Magnetic Semiconductor ZnCoO by X-ray Magnetic Circular Dichroism
M. Kobayashi, Y. Ishida, J. l. Hwang +12
We report on the results of x-ray absorption (XAS), x-ray magnetic circular dichroism (XMCD), and photoemission experiments on {\it n}-type ZnCoO () thin film,…
High-energy spectroscopic study of the III-V nitride-based diluted magnetic semiconductor GaMnN
J. I. Hwang, Y. Ishida, M. Kobayashi +12
We have studied the electronic structure of the diluted magnetic semiconductor GaMnN ( = 0.0, 0.02 and 0.042) grown on Sn-doped -type GaN using photoemission an…
Soft X-ray magnetic circular dichroism study of the ferromagnetic CrTe
K. Yaji, A. Kimura, C. Hirai +8
The 2p core excited XAS and XMCD spectra of CrTe with several concentrations of =0.11-0.33 have been measured. The observed XMCD lineshapes are found to very weakly depe…