100 citations · 476 across the 14 of their papers we have counts for
14 papers
Broken Screw Rotational Symmetry in the Near-Surface Electronic Structure of -Stacked Crystals
Hiroaki Tanaka, Shota Okazaki, Masaru Kobayashi +10
We investigate the electronic structure of - and - by angle-resolved photoemission spectroscopy (ARPES) and photoemission intensity cal…
Soft X-ray absorption spectroscopy and magnetic circular dichroism under pulsed high magnetic field of Ni-Co-Mn-In metamagnetic shape memory alloy
Rie Y. Umetsu, Hiromasa Yasumura, Yasuo Narumi +4
In this study, X-ray absorption spectroscopy (XAS) experiments for Ni45Co5Mn36.7In13.3 metamagnetic shape memory alloy were performed under high magnetic fields up to 12 T using a…
Bulk and element specific magnetism of the medium and high entropy Cantor-Wu alloys
D. Billington, A. D. N. James, E. I. Harris-Lee +14
Magnetic Compton scattering, x-ray magnetic circular dichroism spectroscopy and bulk magnetometry measurements are performed on a set of medium (NiFeCo and NiFeCoCr) and high (NiFe…
Spin and orbital magnetic moments in perpendicularly magnetized NiCoO epitaxial thin films: Effects of site-dependent cation valence states
Daisuke Kan, Masaichiro Mizumaki, Miho Kitamura +5
We carried out x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) spectroscopy and investigated cation valence states and spin and orbital magnetic mo…
Enhanced spin-orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures
Hae-Yeon Lee, Sanghoon Kim, June-Young Park +9
Spin-orbit torque facilitates efficient magnetization switching via an in-plane current in perpendicularly magnetized heavy metal/ferromagnet heterostructures. The efficiency of sp…
Electric-field-induced changes of magnetic moments and magnetocrystalline anisotropy in ultrathin cobalt films
Takeshi Kawabe, Kohei Yoshikawa, Masahito Tsujikawa +10
In this study, the microscopic origins of the voltage-controlled magnetic anisotropy (VCMA) in 3d-ferromagnetic metals are revealed. Using in-situ X-ray fluorescence spectroscopy t…
Contributions of Co and Fe orbitals to Perpendicular Magnetic Anisotropy of MgO/CoFeB Bilayers with Spin-Orbit-Torque-Related (Ta, W, IrMn, and Ti) Underlayers
Sanghoon Kim, Seung-heon Chris Baek, Mio Ishibashi +9
We study the perpendicular magnetic anisotropy (PMA) of the CoFeB/MgO bilayers in contact with W, Ta, IrMn and Ti which has been suggested as the spin-orbit-torque-related underlay…
Microscopic Origin of Interfacial Dzyaloshinskii-Moriya Interaction
Sanghoon Kim, Kohei Ueda, Gyungchoon Go +15
Chiral spin textures at the interface between ferromagnetic and heavy nonmagnetic metals, such as Neel-type domain walls and skyrmions, have been studied intensively because of the…
Electronic structure of BaNiP observed by angle-resolved photoemission spectroscopy
S. Ideta, T. Yoshida, M. Nakajima +16
We have performed an angle-resolved photoemission spectroscopy (ARPES) study of BaNiP which shows a superconducting transition at 2.5 K. We observed hole and e…
Evidence for exclusion of the possibility of -wave superconducting-gap symmetry in Ba-doped KFeAs
Y. Ota, K. Okazaki, Y. Kotani +12
We have investigated the superconducting(SC)-gap anisotropy for several Ba-doped KFeAs samples using laser-based angle-resolved photoemission spectroscopy. We show that the…
Superconductivity in an electron band just above the Fermi level: possible route to BCS-BEC superconductivity
Kozo Okazaki, Yoshiaki Ito, Yuichi Ota +10
Conventional superconductivity follows Bardeen-Cooper-Schrieffer(BCS) theory of electrons-pairing in momentum-space, while superfluidity is the Bose-Einstein condensation(BEC) of a…
Evidence for a cos(4φ) Modulation of the Superconducting Energy Gap of Optimally Doped FeTe_{0.6}Se_{0.4} Single Crystals Using Laser Angle-Resolved Photoemission Spectroscopy
K. Okazaki, Y. Ito, Y. Ota +10
We study the superconducting(SC)-gap anisotropy of the Γ-centered hole Fermi surface in optimally doped FeTe_{0.6}Se_{0.4} (T_c = 14.5 K), using laser-excited angle-resolved photoe…
Dependence of carrier doping on the impurity potential in transition-metal-substituted FeAs-based superconductors
S. Ideta, T. Yoshida, I. Nishi +15
In order to examine to what extent the rigid-band-like electron doping scenario is applicable to the transition metal-substituted Fe-based superconductors, we have performed angle-…
Angle-resolved photoemission spectroscopy study of PrFeAsO_{0.7}: Dependence of the electronic structure on the pnictogen height
I. Nishi, M. Ishikado, S. Ideta +16
We have performed an angle-resolved photoemission spectroscopy (ARPES) study of the iron-based superconductor PrFeAsO_{0.7} and examined the Fermi surfaces and band dispersions nea…