177 citations · 920 across the 14 of their papers we have counts for
14 papers
Carrier-density dependence of magnetotransport in correlated Dirac semimetal CaIrO
Rinsuke Yamada, Jun Fujioka, Minoru Kawamura +8
We report the carrier density dependence of the magnetotransport property in the correlated Dirac semimetal CaIrO. In the dilute carrier density region ( $\sim 2.2 \…
Topological Kagome magnet Co3Sn2S2 thin flakes with high electron mobility and large anomalous Hall effect
M. Tanaka, Y. Fujishiro, M. Mogi +9
Magnetic Weyl semimetals attract considerable interest not only for their topological quantum phenomena but also as an emerging materials class for realizing quantum anomalous Hall…
Emergent topological spin structures in a centrosymmetric cubic perovskite
S. Ishiwata, T. Nakajima, J. -H. Kim +18
The skyrmion crystal (SkX) characterized by a multiple-q helical spin modulation has been reported as a unique topological state that competes with the single-q helimagnetic order…
Enhanced ferromagnetic transition temperature induced by a microscopic structural rearrangement in the diluted magnetic semiconductor GeMnTe
M. Kriener, T. Nakajima, Y. Kaneko +7
The correlation between magnetic properties and microscopic structural aspects in the diluted magnetic semiconductor GeMnTe is investigated by x-ray diffraction and m…
Photo-creating supercooled spiral-spin states in a multiferroic manganite
Y. M. Sheu, N. Ogawa, Y. Kaneko +1
We demonstrate that dynamics of the ab-spiral-spin order in a magnetoelectric multiferroic Eu0.55Y0.45MnO3 can be unambiguously probed through optical second harmonic signals, gene…
Neutron Brillouin scattering with pulsed spallation neutron source - spin-wave excitations from ferromagnetic powder samples -
S. Itoh, Y. Endoh, T. Yokoo +4
Neutron Brillouin scattering (NBS) method was developed using a pulsed spallation neutron source, and the feasibility of NBS was demonstrated by observing ferromagnetic spin waves…
Orbital characters of three-dimensional Fermi surfaces in Eu2-xSrxNiO4 as probed by soft-x-ray angle-resolved photoemission spectroscopy
M. Uchida, K. Ishizaka, P. Hansmann +13
The three-dimensional Fermi surface structure of hole-doped metallic layered nickelate Eu2-xSrxNiO4 (x=1.1), an important counterpart to the isostructural superconducting cuprate L…
Hall effect of spin-chirality origin in a triangular-lattice helimagnet Fe1.3Sb
Y. Shiomi, M. Mochizuki, Y. Kaneko +1
We report on a topological Hall effect possibly induced by scalar spin chirality in a quasi-two- dimensional helimagnet FeSb. In the low-temperature region where the spins…
Versatile helimagnetic phases under magnetic fields in cubic perovskite SrFeO3
S. Ishiwata, M. Tokunaga, Y. Kaneko +7
A helical spin texture is of great current interest for a host of novel spin-dependent transport phenomena. We report a rich variety of nontrivial, helimagnetic phases in the simpl…
Magnetic-field induced competition of two multiferroic orders in a triangular-lattice helimagnet MnI2
T. Kurumaji, S. Seki, S. Ishiwata +4
Magnetic and dielectric properties with varying magnitude and direction of magnetic field H have been investigated for a triangular lattice helimagnet MnI2. The in-plane electric p…
Cupric chloride CuCl2 as an S=1/2 chain multiferroic
S. Seki, T. Kurumaji, S. Ishiwata +6
Magnetoelectric properties were investigated for an S=1/2 chain antiferromagnet CuCl2, which turns out to be the first example of non-chalcogen based spiral-spin induced multiferro…
Electromagnons in the multiferroic state of perovskite manganites with symmetric-exchange striction
Y. Takahashi, S. Ishiwata, S. Miyahara +5
We have investigated electrically-active magnetic excitations (electromagnons) in perovskite manganites with the -type (up-up-down-down) spin structure by terahertz spectroscopy…
Perovskite Manganites Hosting Versatile Multiferroic Phases with Symmetric and Antisymmetric Exchange Strictions
S. Ishiwata, Y. Kaneko, Y. Tokunaga +3
Complete magnetoelectric (ME) phase diagrams of orthorhombic MnO with and without magnetic moments on the ions have been established. Three kinds of multiferroic groun…
Terahertz time-domain spectroscopy of electromagnons in multiferroic perovskite manganites
N. Kida, Y. Takahashi, J. S. Lee +7
Recent spectroscopic studies at terahertz frequencies for a variety of multiferroics endowed with both ferroelectric and magnetic orders have revealed the possible emergence of a n…