73 citations · 158 across the 11 of their papers we have counts for
11 papers
Enhanced thermopower in a magnetic semiconductor EuTe4 with multiple charge-density-wave instabilities/
Hidefumi Takahashi, Kiichiro Yoshida, Akitoshi Nakano +1
We investigate the layered magnetic semiconductor EuTe4, focusing on its intricate charge-density wave (CDW) states near and above room temperature through single-crystal X-ray dif…
A rutile-based homologous series Na(PtO) discovered by computationally assisted high-pressure synthesis
Yasuhito Kobayashi, Hidefumi Takahashi, Shunsuke Kitou +4
Layered transition metal oxides typified by the Ruddlesden-Popper phase have been extensively studied for its applications in high-temperature superconductivity, catalysis, and bat…
Exploration of metastable A-site-ordered perovskites (Ca,Ba)FeO3-δ by computationally-guided multi-step synthesis
Masaho Onose, Hidefumi Takahashi, Hajime Sagayama +2
Perovskite-type iron oxides with Fe4+ ions have attracted much attention for their versatile helimagnetic phases. While the introduction of a layered A-site ordered structure to AF…
Mass enhancement and metal-nonmetal transition driven by d-f hybridization in perovskites La1-xPrxCuO3
H. Takahashi, M. Ito, J. Fujioka +6
We report the large electron-mass enhancement and the metal to nonmetal transition upon the Pr doping in perovskite-type La1-xPrxCuO3. With increasing the Pr content x around 0.6,…
Observation of converse flexoelectric effect in topological semimetals
Hidefumi Takahashi, Yusuke Kurosaka, Kenta Kimura +2
A strong coupling between electric polarization and elastic deformation in solids is an important factor in creating useful electromechanical nanodevices. Such coupling is typicall…
Band-asymmetry-driven nonreciprocal electronic transport in a helimagnetic semimetal α-EuP
Alex Hiro Mayo, Darius-Alexandru Deaconu, Hidetoshi Masuda +6
Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence…
Unusual photoinduced crystal structure dynamics in TaTe with double zigzag chain superstructure
J. Koga, Y. Chiashi, A. Nakamura +5
Transition metal dichalcogenides with superperiodic lattice distortions have been widely investigated as the platform of ultrafast structural phase manipulations. Here we performed…
Superconductivity in a ferroelectric-like topological semimetal SrAuBi
Hidefumi Takahashi, Tomohiro Sasaki, Akitoshi Nakano +6
Given the rarity of metallic systems that exhibit ferroelectric-like transitions, it is apparently challenging to find a system that simultaneously possesses superconductivity and…
Multiband Metallic Ground State in Multilayered Nickelates LaNiO and LaNiO Probed by La-NMR at Ambient Pressure
Masataka Kakoi, Takashi Oi, Yujiro Ohshita +9
We report a La-NMR study of polycrystalline samples of multi()-layered nickelates, LaNiO () and LaNiO (), at ambient pressure.…
Complete phase diagram of SrLaFeO with versatile magnetic and charge ordering
Masaho Onose, Hidefumi Takahashi, Hajime Sagayama +2
A detailed electronic phase diagram of perovskite-type oxides SrLaFeO was established by synchrotron X-ray diffraction, magnetization, and tran…
High-pressure synthesis of an unusual antiferromagnetic metal CaCoO with GdFeO-type perovskite structure
T. Osaka, H. Takahashi, H. Sagayama +2
The GdFeO-type perovskite CaCoO has been successfully synthesized by high-pressure oxygen annealing for the oxygen deficient perovskite. A detailed structural analysis…