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Y. Okamoto · SciRah

Researcher profile · Semantic Scholar

Y. Okamoto

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Y. Okamoto — researcher profile on SciRah

h-index: 29
Works: 173
Citations: 3,358

Most-cited papers

Line-Node Dirac Semimetal and Topological Insulating Phase in Noncentrosymmetric Pnictides CaAgX (X = P, As)
A. Yamakage, Youichi Yamakawa, Yukio Tanaka, Y. Okamoto
2015175 citations Open access
Semantic Scholar
Colossal negative thermal expansion in reduced layered ruthenate
K. Takenaka, Y. Okamoto, Tsubasa Shinoda, N. Katayama +1 more
2017Nature Communications168 citations Open access
Semantic Scholar
Observation of Dirac-like energy band and ring-torus Fermi surface associated with the nodal line in topological insulator CaAgAs
D. Takane, K. Nakayama, S. Souma, Taichi Wada +9 more
2017102 citations Open access
Semantic Scholar
Breathing pyrochlore lattice realized in A-site ordered spinel oxides LiGaCr4O8 and LiInCr4O8.
Y. Okamoto, G. Nilsen, J. Attfield, Z. Hiroi
2013Physical Review Letters83 citations Open access
Semantic Scholar
Thermoelectric properties of antiperovskite calcium oxides Ca3PbO and Ca3SnO
Y. Okamoto, Akira Sakamaki, K. Takenaka
201668 citations Open access
Semantic Scholar
One-Third Magnetization Plateau with a Preceding Novel Phase in Volborthite.
H. Ishikawa, M. Yoshida, K. Nawa, M. Jeong +11 more
2015Physical Review Letters46 citations Open access
Semantic Scholar
Large Thermoelectric Power Factor at Low Temperatures in One-Dimensional Telluride Ta4SiTe4
Takumi Inohara, Y. Okamoto, Youichi Yamakawa, A. Yamakage +1 more
201743 citations Open access
Semantic Scholar
Lifshitz metal–insulator transition induced by the all-in/all-out magnetic order in the pyrochlore oxide Cd2Os2O7
Z. Hiroi, J. Yamaura, Takahiro Hirose, I. Nagashima +1 more
201542 citations Open access
Semantic Scholar
Microstructural effects on negative thermal expansion extending over a wide temperature range in β-Cu1.8Zn0.2V2O7
N. Katayama, K. Otsuka, M. Mitamura, Y. Yokoyama +2 more
2018Applied Physics Letters40 citations
Semantic Scholar
Novel Phase Transitions in the Breathing Pyrochlore Lattice: ^{7}Li-NMR on LiInCr_{4}O_{8} and LiGaCr_{4}O_{8}
Yukio Tanaka, M. Yoshida, M. Takigawa, Y. Okamoto +1 more
2014Physical Review Letters37 citations Open access
Semantic Scholar
Low Carrier Density Metal Realized in Candidate Line-Node Dirac Semimetals CaAgP and CaAgAs
Y. Okamoto, Takumi Inohara, A. Yamakage, Youichi Yamakawa +1 more
201636 citations Open access
Semantic Scholar
Complex magnetostructural order in the frustrated spinel LiInCr 4 O 8
G. Nilsen, Y. Okamoto, T. Masuda, J. Rodríguez-Carvajal +3 more
201536 citations
Semantic Scholar
Magnetic and Structural Properties of A-Site Ordered Chromium Spinel Sulfides: Alternating Antiferromagnetic and Ferromagnetic Interactions in the Breathing Pyrochlore Lattice
Y. Okamoto, M. Mori, N. Katayama, A. Miyake +4 more
201832 citations Open access
Semantic Scholar
Crossing-line-node semimetals: General theory and application to rare-earth trihydrides
S. Kobayashi, Youichi Yamakawa, A. Yamakage, Takumi Inohara +2 more
201731 citations Open access
Semantic Scholar
Frozen State and Spin Liquid Physics in Na_{4}Ir_{3}O_{8}: An NMR Study.
A. Shockley, F. Bert, J. Orain, Y. Okamoto +1 more
2015Physical Review Letters31 citations Open access
Semantic Scholar
Regular-triangle trimer and charge order preserving the Anderson condition in the pyrochlore structure of CsW2O6
Y. Okamoto, Haruki Amano, N. Katayama, H. Sawa +13 more
2020Nature Communications29 citations Open access
Semantic Scholar
Giant isotropic negative thermal expansion in Y-doped samarium monosulfides by intra-atomic charge transfer
K. Takenaka, D. Asai, Ryoichi Kaizu, Y. Mizuno +5 more
2019Scientific Reports28 citations Open access
Semantic Scholar
Spin dynamics in the high-field phases of volborthite
M. Yoshida, K. Nawa, H. Ishikawa, M. Takigawa +12 more
201627 citations Open access
Semantic Scholar
Superconductivity in the Hexagonal Ternary Phosphide ScIrP
Y. Okamoto, Takumi Inohara, Youichi Yamakawa, A. Yamakage +1 more
201527 citations Open access
Semantic Scholar
Breathing Pyrochlore Lattice Realized in the A-Site Ordered Spinel Oxides LiGaCr$_{4}$O$_{8}$ and LiInCr$_{4}$O$_{8}$
Y. Okamoto
201426 citations
Semantic Scholar
Magnetic Phase Diagram of the Breathing Pyrochlore Antiferromagnet LiGa1−xInxCr4O8
Y. Okamoto, G. Nilsen, Taishi Nakazono, Z. Hiroi
201524 citations Open access
Semantic Scholar
Thermoelectric properties of Sr and Mg double-substituted LaCoO3 at room temperature
Arreerat Jiamprasertboon, Y. Okamoto, Z. Hiroi, Theeranun Siritanon
201424 citations
Semantic Scholar
Giant negative thermal expansion in Fe-doped layered ruthenate ceramics
K. Takenaka, Tsubasa Shinoda, N. Inoue, Y. Okamoto +4 more
201723 citations
Semantic Scholar
Magnetic transitions under ultrahigh magnetic fields of up to 130 T in the breathing pyrochlore antiferromagnet LiInCr 4 O 8
Y. Okamoto, D. Nakamura, A. Miyake, S. Takeyama +4 more
201722 citations Open access
Semantic Scholar
Magnetization process of the breathing pyrochlore magnet CuInCr4S8 in ultrahigh magnetic fields up to 150 T
Gen Masaki, Y. Okamoto, M. Mori, K. Takenaka +1 more
2019Physical review B21 citations Open access
Semantic Scholar
Kagome-Triangular Lattice Antiferromagnet NaBa2Mn3F11
H. Ishikawa, T. Okubo, Y. Okamoto, Z. Hiroi
201420 citations Open access
Semantic Scholar
Orbital Arrangements and Magnetic Interactions in the Quasi-One-Dimensional Cuprates ACuMoO4(OH) (A = Na, K).
K. Nawa, Takeshi Yajima, Y. Okamoto, Z. Hiroi
2015Inorganic Chemistry18 citations Open access
Semantic Scholar
Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet
Gen Masaki, A. Ikeda, K. Aoyama, H. Jeschke +10 more
2023Proceedings of the National Academy of Sciences of the United States of America17 citations Open access
Semantic Scholar
Orbital Transitions and Frustrated Magnetism in the Kagome-Type Copper Mineral Volborthite.
Z. Hiroi, H. Ishikawa, H. Yoshida, J. Yamaura +1 more
2019Inorganic Chemistry17 citations
Semantic Scholar
Synthesis and Superconducting Properties of a Hexagonal Phosphide ScRhP
Takumi Inohara, Y. Okamoto, Youichi Yamakawa, K. Takenaka
201617 citations Open access
Semantic Scholar
NaCuMoO_4(OH) as a Candidate Frustrated J_1-J_2 Chain Quantum Magnet
K. Nawa, Y. Okamoto, A. Matsuo, K. Kindo +8 more
201417 citations Open access
Semantic Scholar
Sol–gel synthesis of doped Cu2V2O7 fine particles showing giant negative thermal expansion
Miku Sato, V. Warne-Lang, Y. Kadowaki, N. Katayama +2 more
202016 citations Open access
Semantic Scholar
Spray‐dry synthesis of β ‐Cu 1.8 Zn 0.2 V 2 O 7 ceramic fine particles showing giant negative thermal expansion
K. Takenaka, Miku Sato, M. Mitamura, Y. Yokoyama +2 more
202015 citations
Semantic Scholar
Rattling Behavior in a Simple Perovskite NaWO3
Yuya Ikeuchi, H. Takatsu, C. Tassel, C. Brown +4 more
2019Inorganic Chemistry15 citations Open access
Semantic Scholar
Extended operating temperature window of giant negative thermal expansion in Sn-doped Ca2RuO4
K. Takenaka, N. Inoue, Y. Mizuno, Y. Okamoto +4 more
2018Applied Physics Letters15 citations
Semantic Scholar
Ultra-high magnetic field magnetic phases up to 130 T in a breathing pyrochlore antiferromagnet LiInCr4O8
Gen Masaki, D. Nakamura, Y. Okamoto, S. Takeyama
2019Journal of Magnetism and Magnetic Materials13 citations
Semantic Scholar
Spinodally decomposed nanostructures in a TiO2–VO2 crystal
Z. Hiroi, T. Yoshida, J. Yamaura, Y. Okamoto
201513 citations Open access
Semantic Scholar
Structural phase transition and negative thermal expansion in Cu1.8Zn0.2V2–x P x O7 solid solutions
K. Takenaka, M. Kano, R. Kasugai, Kohei Takada +5 more
2022Applied Physics Express12 citations Open access
Semantic Scholar
Collinear spin density wave order and anisotropic spin fluctuations in the frustrated J 1 − J 2 chain magnet NaCuMoO 4 ( OH )
K. Nawa, M. Yoshida, M. Takigawa, Y. Okamoto +1 more
201712 citations Open access
Semantic Scholar
On the microscopic dynamics of the 'Einstein solids' AlV2Al20 and GaV2Al20, and of YV2Al20: a benchmark system for 'rattling' excitations.
M. Koza, H. Mutka, Y. Okamoto, J. Yamaura +1 more
2015Physical Chemistry, Chemical Physics - PCCP12 citations Open access
Semantic Scholar
Helical order and multiferroicity in the S = 1/2 quasi-kagome system KCu3As2O7(OD)3
G. Nilsen, Y. Okamoto, H. Ishikawa, V. Simonet +6 more
201412 citations Open access
Semantic Scholar
Real spin and pseudospin topologies in the noncentrosymmetric topological nodal-line semimetal CaAgAs
Hishiro T. Hirose, T. Terashima, Taichi Wada, Y. Matsushita +3 more
202010 citations Open access
Semantic Scholar
Hole-doped M4SiTe4 (M = Ta, Nb) as an efficient p-type thermoelectric material for low-temperature applications
Y. Okamoto, Yuma Yoshikawa, Taichi Wada, K. Takenaka
2019Applied Physics Letters10 citations Open access
Semantic Scholar
Large Thermoelectric Power Factor in One-Dimensional Telluride Nb4SiTe4 and Substituted Compounds
Y. Okamoto, Taichi Wada, Youichi Yamakawa, Takumi Inohara +1 more
201810 citations Open access
Semantic Scholar
Magnetic Properties of the Spin-1/2 Deformed Kagome Antiferromagnet Edwardsite
H. Ishikawa, Y. Okamoto, Z. Hiroi
201310 citations Open access
Semantic Scholar
Giant Magneto-Volume and Magneto-Caloric Effects of Frustrated Antiferromagnet Mn3GaN under Hydrostatic Pressure
K. Takenaka, T. Sugiura, Y. Kadowaki, M. Ozeki +2 more
20218 citations
Semantic Scholar
Thermal Expansion and Volume Magnetostriction in Breathing Pyrochlore Magnets LiACr4X8 (A = Ga, In, X = O, S)
Tomoya Kanematsu, M. Mori, Y. Okamoto, Takeshi Yajima +1 more
2020Journal of the Physical Society of Japan8 citations Open access
Semantic Scholar
Large Diamagnetic Susceptibility from Petit Fermi Surfaces in LaV 2 Al 20
Takahiro Hirose, Y. Okamoto, J. Yamaura, Z. Hiroi
20158 citations
Semantic Scholar
Novel K rattling: A new route to thermoelectric materials?
E. Shoko, Y. Okamoto, G. Kearley, V. Peterson +1 more
20138 citations Open access
Semantic Scholar
Superconductivity in Ternary Scandium Telluride Sc6MTe2 with 3d, 4d, and 5d Transition Metals
Yusaku Shinoda, Y. Okamoto, Youichi Yamakawa, H. Matsumoto +2 more
2023Journal of the Physical Society of Japan7 citations Open access
Semantic Scholar

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K. Takenaka×23
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K. Takenaka — researcher profile on SciRah
Z. Hiroi×18
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N. Katayama×10
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Youichi Yamakawa×9
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H. Ishikawa — researcher profile on SciRah

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J. Yamaura — researcher profile on SciRah

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Takumi Inohara×6

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Takumi Inohara — researcher profile on SciRah

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K. Nawa — researcher profile on SciRah

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Yukio Tanaka×4

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