744 citations · 1.8k across the 25 of their papers we have counts for
25 papers
Magnetoelectric coupling and its impact on the multicaloric effect
Kentaro Ino, Keisuke Matsuura, Tetsuya Nomoto +3
The multicaloric effect, which represents the reversible entropy change that occurs when both external magnetic and electric fields are applied, is an interesting phenomenon charac…
Electronic Structure of Kramers Nodal-Line Semimetal YAuGe and Anomalous Hall Effect Induced by Magnetic Rare-Earth Substitution
Takashi Kurumaji, Jorge I. Facio, Natsuki Mitsuishi +11
Nodal-line semimetals are a class of topological materials hosting one dimensional lines of band degeneracy. Kramers nodal-line (KNL) metals/semimetals have recently been theoretic…
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…
Multiple Magnetoelectric Plateaux in Polar Magnet FeMoO
Qian Chen, Atsushi Miyake, Takashi Kurumaji +5
The magnetization and electric polarization of a polar antiferromagnet FeMoO are studied up to 66 T for spin-saturation magnetic fields applied along the polar axis. Th…
Low-temperature hysteresis broadening emerging from domain-wall creep dynamics in a two-phase competing system
Keisuke Matsuura, Yo Nishizawa, Yuto Kinoshita +6
Hysteretic behaviour accompanies any first-order phase transition, forming a basis for many applications. However, its quantitative understanding remains challenging, and even a qu…
Magnetoelectrocaloric effect of multiferroic GdFeO3
Rintaro Ikeda, Takashi Kurumaji, Yusuke Tokunaga +1
We report an experimental demonstration of the magnetoelectrocaloric effect (MECE) in multiferroic . The temperature of the magnetic material changes when an exte…
Thermodynamic determination of the equilibrium first-order phase-transition line hidden by hysteresis in a phase diagram
Keisuke Matsuura, Yo Nishizawa, Markus Kriener +4
Phase diagrams form the basis for the study of material science, and the profiles of phase-transition lines separating different thermodynamic phases include comprehensive informat…
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…
Anisotropic magnetotransport properties coupled with spiral spin modulation in a triangular-lattice magnet EuZnGe
Takashi Kurumaji, Masaki Gen, Shunsuke Kitou +3
We investigate the thermodynamic, magnetic, and electrical transport properties of a triangular-lattice antiferromagnet EuZnGe using single crystals grown from Eu-Zn flux in sealed…
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…
Polarized neutron scattering study on the centrosymmetric skyrmion host material Gd2PdSi3
Jiwon Ju, Hiraku Saito, Takashi Kurumaji +6
We have investigated magnetic structures of the centrosymmetrric skyrmion material Gd2PdSi3 by means of polarized neutron scattering near zero field with an isotope-160Gd-enriched…
Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCrS
M. Gen, H. Ishikawa, A. Ikeda +13
Frustrated magnets with a strong spin-lattice coupling can show rich magnetic phases and the associated fascinating phenomena. A promising platform is the breathing pyrochlore magn…
Picosecond creation of switchable optomagnets with giant photoinduced Kerr rotations in polar antiferromagnetic (FeZn)MoO
Y. M. Sheu, Y. M. Chang, C. P. Chang +5
On-demand spin orientation with long polarized lifetime and easily detectable signal is an ultimate goal for spintronics. However, there still exists a trade-off between controllab…
Signatures of ultrafast reversal of excitonic order in TaNiSe
H. Ning, O. Mehio, M. Buchhold +4
In the presence of electron-phonon coupling, an excitonic insulator harbors two degenerate ground states described by an Ising-type order parameter. Starting from a microscopic Ham…
High-field depinned phase and planar Hall effect in skyrmion-host GdPdSi
Max Hirschberger, Taro Nakajima, Markus Kriener +11
For the skyrmion-hosting intermetallic GdPdSi with centrosymmetric hexagonal lattice and triangular net of rare earth sites, we report a thorough investigation of the magne…
Direct observation of cycloidal spin modulation and field-induced transition in Néel-type skyrmion-hosting VOSeO
T. Kurumaji, T. Nakajima, A. Feoktystov +6
We investigate the spin rotational structure of magnetic skyrmions in a tetragonal polar magnet VOSe2O5 via polarized small-angle neutron scattering (SANS). Spin polarization analy…
Topological Nernst effect of the two-dimensional skyrmion lattice
Max Hirschberger, Leonie Spitz, Takuya Nomoto +12
The topological Hall effect (THE) and its thermoelectric counterpart, the topological Nernst effect (TNE), are hallmarks of the skyrmion lattice phase (SkL). We observed the giant…
Ordering phenomena of spin trimers accompanied by large geometrical Hall effect
Shang Gao, Max Hirschberger, Oksana Zaharko +10
The wavefuntion of conduction electrons moving in the background of a non-coplanar spin structure can gain a quantal phase - Berry phase - as if the electrons were moving in a stro…
Skyrmion phase and competing magnetic orders on a breathing kagome lattice
Max Hirschberger, Taro Nakajima, Shang Gao +13
Magnetic skyrmion textures are realized mainly in non-centrosymmetric, e.g. chiral or polar, magnets. Extending the field to centrosymmetric bulk materials is a rewarding challenge…
Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
Takashi Kurumaji, Taro Nakajima, Max Hirschberger +7
Geometrically frustrated magnets provide abundant opportunities for discovering complex spin textures, which sometimes yield unconventional electromagnetic responses in correlated…
Néel-type skyrmion lattice in tetragonal polar magnet VOSeO
Takashi Kurumaji, Taro Nakajima, Victor Ukleev +4
Formation of the triangular skyrmion-lattice is found in a tetragonal polar magnet VOSeO. By magnetization and small-angle neutron scattering measurements on the single cry…