97 citations · 160 across the 25 of their papers we have counts for
13 papers · 1 filter
Observation of complex orbital order in MnV2O4
Chihaya Koyama, Shunsuke Kitou, Taishun Manjo +8
Orbital ordering in vanadium spinel oxides with a geometrically frustrated pyrochlore structure has been a subject of controversy, owing to competing theoretical models and the abs…
Observation of g-wave altermagnetic multipole
Ryo Misawa, Rikuto Oiwa, Shunsuke Kitou +16
Over the past few years, altermagnets have emerged as a new class of collinear magnets with broken time-reversal symmetry, offering novel opportunities for spintronics beyond conve…
Stripe antiferromagnetism in van der Waals metal HoTe3 decoupled from charge density wave order
Weiyi Yun, Ryota Nakano, Ryo Misawa +10
The () family of layered van der Waals (vdW) compounds hosts coexisting magnetic and charge density wave (CDW) orders, yet the interplay bet…
Molecular-Orbital Degeneracy Lifting and Suppression of a Flat-Band Metal in a Tetrahedral Cluster System NbSeI
Keita Kojima, Youichi Yamakawa, Ryutaro Okuma +7
The lifting of degenerate electronic states has been extensively studied in transition metal compounds, where diverse quantum phenomena arise from the degrees of freedom of d elect…
Linear tetramer formation in nonmagnetic pyrochlore niobate
Shota Nishida, Shunsuke Kitou, Shingo Toyoda +3
We investigate displacive short-range order in pyrochlore Y2Nb2O7, which exhibits a nonmagnetic insulating state despite the presence of formally tetravalent Nb4+ (S = 1/2) ions on…
Effect of uniaxial stress on helimagnetic phases in the square-lattice itinerant magnet EuAl
Masaki Gen, Takuya Nomoto, Hiraku Saito +5
We investigate uniaxial-stress effects on the magnetic phase diagram of the square-lattice itinerant magnet EuAl, where strong coupling among spin, lattice, and charge produc…
Successive orthorhombic distortions in kagome metals by molecular orbital formation
Ryo Misawa, Shunsuke Kitou, Rinsuke Yamada +12
The kagome lattice, with its inherent frustration, hosts a plethora of exotic phenomena, including the emergence of charge density wave order. The high rotational sym…
Visualization of Co 3d high- and low-spin states via valence electron density
Kamini Gautam, Shunsuke Kitou, Yuiga Nakamura +5
Properties of trivalent cobalt oxides are governed by the spin and orbital states of Co3+ ions, which are strongly coupled to their local coordination environments and chemical bon…
Current-induced successive structural phase transitions beyond thermal equilibrium in single-crystal VO2
Shunsuke Kitou, Akitoshi Nakano, Masato Imaizumi +5
Nonequilibrium systems driven by external energy sources host unexplored physics; yet phase transitions beyond thermal equilibrium remain elusive. Here, we demonstrate that electri…
Triangular lattice magnet GdGa with short-period spin cycloids and possible skyrmion phases
Priya R. Baral, Nguyen Duy Khanh, Masaki Gen +6
The two-dimensional triangular lattice (TAL) is a model system of magnetic frustration and competing interactions, where skyrmion spin vortices can be induced by a vertical magneti…
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…
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…