38 citations · 145 across the 15 of their papers we have counts for
15 papers
Magnetoelastic mapping of the high-field phase diagram in the topological cubic helimagnet SrFeO
Masaki Gen, Shun Okumura, Shusaku Imajo +9
The cubic perovskite SrFeO is a prototypical centrosymmetric itinerant magnet that hosts a quadruple- hedgehog-antihedgehog lattice and exhibits a complex magnet…
Tetrahedrally ferromagnetic correlations and a glassy-freezing anomaly in the breathing pyrochlore magnet with partial -site disorder
Yuya Haraguchi, Masahiro Kitamura, Masaki Gen +6
We investigate the chromium breathing pyrochlore sulfide , a chromium-based thiospinel, by synchrotron x-ray and neutron powder diffraction, dc magnetization,…
Frustration of harmonic and solitonic helimagnetism on the body-centered tetragonal lattice of GdAlSi
Ryota Nakano, Rinsuke Yamada, Oleg I. Utesov +9
The triangular lattice antiferromagnet (TLAF) with nearest-neighbor exchange interaction is a model platform in the field of frustrated magnetism. Here, anharmonic (`up-up-down') a…
Contrasting magnetothermal conductivity in sibling Co-based honeycomb-lattice antiferromagnets
Masato Ueno, Takashi Kurumaji, Shunsuke Kitou +4
Honeycomb-lattice antiferromagnets have attracted wide attention for exploration of exotic heat transport and their interplay with magnetic excitations. In this work, we have revea…
Metamagnetism and anomalous magnetotransport properties in rare-earth-based polar semimetals AuGe ( Dy, Ho, and Gd)
Takashi Kurumaji, Masaki Gen, Shunsuke Kitou +1
We report the magnetic, magnetoelastic, and magnetotransport properties of single crystals of polar magnets AuGe ( Dy, Ho, and Gd), grown by Au-Ge self-flux. Magnetization a…
Incommensurate broken helix induced by nonstoichiometry in the axion insulator candidate EuInAs
Masaki Gen, Yukako Fujishiro, Kazuki Okigami +9
Zintl phase EuInAs has garnered growing attention as an axion insulator candidate, triggered by the identification of a commensurate double- broken-helix s…
Canted antiferromagnetism in a spin-orbit coupled triangular-lattice magnet DyAuGe
Takashi Kurumaji, Masaki Gen, Shunsuke Kitou +5
Exploration of nontrivial magnetic states induced by strong spin-orbit interaction is a central topic of frustrated magnetism. Extensive studies are concentrated on rare-earth-base…
Cluster rearrangement by chiral charge order in lacunar spinel GaNbSe
Shunsuke Kitou, Masaki Gen, Yuiga Nakamura +2
Transition-metal atoms with d electrons sometimes form clusters in crystals, which significantly affects the physical properties. Such a cluster formation frequently accompanies a…
Breathing pyrochlore magnet CuGaCrS: Magnetic, thermodynamic, and dielectric properties
M. Gen, H. Ishikawa, A. Miyake +11
We investigate the crystallographic and magnetic properties of a chromium-based thiospinel CuGaCrS. From a synchrotron x-ray diffraction experiment and structural refin…
Real-Space Observation of Ligand Hole State in Cubic Perovskite SrFeO
Shunsuke Kitou, Masaki Gen, Yuiga Nakamura +4
An anomalously high valence state sometimes shows up in transition-metal oxide compounds. In such systems, holes tend to occupy mainly the ligand orbitals, giving rise to inter…
Single crystal growths and magnetic properties of hexagonal polar semimetals RAuGe (R = Y, Gd-Tm, and Lu)
Takashi Kurumaji, Masaki Gen, Shunsuke Kitou +4
We study structural and magnetic properties of rare-earth based semimetals RAuGe (R = Y, Gd-Tm, and Lu) using flux-grown single crystals. These compounds belong to the noncentrosym…
Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet
M. Gen, A. Ikeda, K. Aoyama +11
The mutual coupling of spin and lattice degrees of freedom is ubiquitous in magnetic materials and potentially creates exotic magnetic states in response to the external magnetic f…
Rhombic skyrmion lattice coupled with orthorhombic structural distortion in EuAl
Masaki Gen, Rina Takagi, Yoshito Watanabe +9
The centrosymmetric tetragonal itinerant magnet EuAl exhibits an intricate magnetic phase diagram including rhombic and square skyrmion-lattice (SkL) phases in the external m…
Phase transition in the 5d1 double perovskite Ba2CaReO6 induced by high magnetic field
Hajime Ishikawa, Daigorou Hirai, Akihiko Ikeda +6
Magnetic properties of an antiferromagnetic double perovskite oxide Ba2CaReO6, where Re6+ (5d1) ions with large spin-orbit coupling are arranged on the face-centered-cubic lattice,…
Effects of spin-lattice coupling and a magnetic field in classical Heisenberg antiferromagnets on the breathing pyrochlore lattice
Kazushi Aoyama, Masaki Gen, Hikaru Kawamura
We theoretically investigate spin-lattice coupling (SLC) effects on the in-field ordering properties of classical Heisenberg antiferromagnets on the breathing pyrochlore lattice. H…