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KK

K. M. Kojima

0000-0001-9273-181X
cond-mat.str-elcond-mat.supr-concond-mat.mtrl-sciphysics.ins-detphysics.app-phradicalscond-mat.dis-nncond-mat.stat-mechheterocyclesmuon

On Valency

published · living versions
W_7msc86uc·v1 · currentpublished
Electronic correlation in the quasi-two-dimensional electride Y2_2C
with M. Hiraishi, I. Yamauchi, H. Okabe, S. Takeshita +8
1 version

Preprints & journals

86 papers in the corpus · 1978–2025
Observation of Quinoxalinyl Radical Produced by Muonium Addition to 1,2-Diisocyanobenzene.41287247 · Ito, Shigekazu, Iwami, Kazuki, Kojima, Kenji M et al.2025 · 1 citationChemistry (Weinheim an der Bergstrasse, Germany). 2025;31(72):e03139
Author Correction: Topology meets time-reversal symmetry breaking in FeSe1-xTex superconductors.40764494 · Roppongi, Masaki, Cai, Yipeng, Ogawa, Koki et al.2025 · 0 citationsNature communications. 2025;16(1):7188
Magnetism of kagome metals (Fe1−xCox)Sn\left(\text{Fe}_{1-x} \text{Co}_{x}\right) \text{Sn} studied by μ\muSR2507.22249v1 · Yipeng Cai, Sungwon Yoon, Qi Sheng et al.2025 · 2 citationsPhys. Rev. B 111, 214412 (2025)
Topology meets time-reversal symmetry breaking in FeSe1-xTex superconductors.40701995 · Roppongi, Masaki, Cai, Yipeng, Ogawa, Koki et al.2025 · 8 citationsNature communications. 2025;16(1):6573
Doping Effects on Magnetic and Electronic Transport Properties in (Ba1-xRbx)(Zn1-yMny)2As2 (0.1 ≤ x, y ≤ 0.25).40648681 · Zhao, Guoqiang, Peng, Yi, Kojima, Kenji M et al.2025 · 3 citationsNanomaterials (Basel, Switzerland). 2025;15(13)
Molecular dynamics of ciscis-polybutadiene across the glass transition revealed by muonated-radical spin relaxation2506.05665v2 · S. Takeshita, H. Okabe, M. Hiraishi et al.2025 · 0 citationsPhys. Rev. B 111, 214208 (2025)
Experimental Studies on Spatial Resolution of a Delay-Line Current-Biased Kinetic-Inductance Detector2504.12361v1 · The Dang Vu, Hiroaki Shishido, Kazuya Aizawa et al.2025 · 0 citationsarXiv
The origin and scarcity of breathing pyrochlore lattices in spinel oxides2502.14089v1 · Valentina Mazzotti, Solveig S. Aamlid, Abraham A. Mancilla et al.2025 · 1 citationPhys. Rev. Materials 9, 033602 (2025)
Nature of the ferromagnet-paramagnet transition in Y1−x_{1-x}Cax_{x}TiO3_{3}2502.12312v1 · S. Hameed, I. Khayr, J. Joe et al.2025 · 0 citationsarXiv
Muon spectroscopy of a 12-phosphatetraphene with extremely efficient radical trapping properties.39775147 · Ito, Shigekazu, Yasuda, Kohei, Ishihara, Keisuke et al.2025 · 2 citationsScientific reports. 2025;15(1):1181
Physical properties and electronic structure of the two-gap superconductor V2_{2}Ga5_{5}2405.03499v1 · P.-Y. Cheng, Mohamed Oudah, T.-L. Hung et al.2024 · 3 citationsPhys. Rev. Research 6 6, 033253 (2024)
Producing Conventional and Transient Amino(mercapto)methyl Radicals by Addition of Muonium to a Crystalline Thioformamide (Mes*NHCH=S).38515308 · Akama, Hikaru, Kojima, Kenji M, McKenzie, Iain et al.2024 · 3 citationsChemphyschem : a European journal of chemical physics and physical chemistry. 2024;25(12):e202300980
Local electronic structure of dilute hydrogen in β\beta-MnO2_{2}2401.02109v1 · H. Okabe, M. Hiraishi, A. Koda et al.2024 · 3 citationsPhys. Rev. B 103, 155121 (2021)
Discovery of Superconductivity and Electron-Phonon Drag in the Non-Centrosymmetric Weyl Semimetal LaRhGe3_32311.11402v2 · Mohamed Oudah, Hsiang-Hsi Kung, Samikshya Sahu et al.2023 · 4 citationsarXiv
Time-Reversal Symmetry Breaking Superconductivity in CaSb2_22309.12457v3 · M. Oudah, Y. Cai, M. V. De Toro Sanchez et al.2023 · 4 citationsarXiv
Orientation mapping of YbSn3_3 single crystals based on Bragg-dip analysis using a delay-line superconducting sensor2308.04812v1 · Hiroaki Shishido, The Dang Vu, Kazuya Aizawa et al.2023 · 2 citationsJournal of Applied Crystallography 56, 1108-1113 (2023)
Difluoromethylborates and Muonium for the Study of Isonitrile Insertion Affording Phenanthridines via Imidoyl Radicals.37351949 · Konagaya, Kakeru, Huang, Yu-En, Iwami, Kazuki et al.2023 · 10 citationsThe Journal of organic chemistry. 2023;88(13):8042-8054
Two superconducting states with broken time-reversal symmetry in FeSe1-xSx.37186859 · Matsuura, Kohei, Roppongi, Masaki, Qiu, Mingwei et al.2023 · 27 citationsProceedings of the National Academy of Sciences of the United States of America. 2023;120(21):e2208276120
Superconducting ground state study of valence skip compound AgSnSe2_22302.07790v1 · A. Kataria, Arushi, S. Sharma et al.2023 · 7 citationsarXiv
Evidence for non-unitary triplet-pairing superconductivity in noncentrosymmetric TaRuSi and comparison with isostructural TaReSi2209.09852v2 · S. Sharma, Sajilesh K. P., A. D. S. Richards et al.2022 · 10 citationsarXiv
High Spatial Resolution Neutron Transmission Imaging Using a Superconducting Two-Dimensional Detector2110.03976v1 · Hiroaki Shishido, Kazuma Nishimura, The Dang Vu et al.2021 · 3 citationsarXiv
Nuclear magnetic resonance of ion implanted 8^8Li in ZnO2109.08637v1 · Jonah R. Adelman, Derek Fujimoto, Martin H. Dehn et al.2021 · 8 citationsPhys Rev. B 106, 035205 (2022)
Muonium Addition to a peri-Trifluoromethylated 9-Phosphaanthracene Producing a High-Energy Paramagnetic π-Conjugated Fused Heterocycle.34409713 · Koshino, Kota, Kojima, Kenji M, McKenzie, Iain et al.2021 · 12 citationsAngewandte Chemie (International ed. in English). 2021;60(45):24034-24038
Anomalous diamagnetism of electride electrons in transition metal silicides2106.00921v1 · M. Hiraishi, K. M. Kojima, H. Okabe et al.2021 · 8 citationsPhys. Rev. B 103, L241101 (2021)
Practical tests of neutron transmission imaging with a superconducting kinetic-inductance sensor2105.03612v1 · The Dang Vu, Hiroaki Shishido, Kazuya Aizawa et al.2021 · 4 citationsarXiv
Nature of the ferromagnetic-antiferromagnetic transition in Y1−x_{1-x}Lax_{x}TiO3_{3}2103.08565v1 · S. Hameed, S. El-Khatib, K. P. Olson et al.2021 · 15 citationsPhys. Rev. B 104, 024410 (2021)
Electronic charge transfer driven by spin cycloidal structure2006.15834v2 · Y. Ishii, S. Horio, Y. Noda et al.2020 · 6 citationsPhysical Review B, 101, 224436 (2020)
Magnetism driven by strong electronic correlation in the heavily carrier-doped iron oxypnictide LaFeAsO0.49_{0.49}H0.51_{0.51}2004.11547v2 · M. Hiraishi, K. M. Kojima, H. Okabe et al.2020 · 7 citationsPhysical Review B 101, 174414 (2020)
New precise spectroscopy of the hyperfine structure in muonium with a high-intensity pulsed muon beam2004.05862v2 · S. Kanda, Y. Fukao, Y. Ikedo et al.2020 · 50 citationsPhysics Letters B 815 (2021) 136154
Coupled Spin-Charge-Phonon Fluctuation in the All-In/All-Out Antiferromagnet Cd2_2Os2_2O7_71911.12500v1 · A. Koda, H. T. Hirose, M. Miyazaki et al.2019 · 3 citationsPhys. Rev. B 100, 245113 (2019)
Energy-resolved neutron imaging with high spatial resolution using a superconducting delay-line kinetic inductance detector1911.02374v1 · Yuki Iizawa, Hiroaki Shishido, Kazuma Nishimura et al.2019 · 21 citationsSuperconductor Science and Technology, 32 (2019) 125009
Electronic structure of interstitial hydrogen in In-Ga-Zn-O semiconductor simulated by muon1909.00503v1 · K. M. Kojima, M. Hiraishi, H. Okabe et al.2019 · 23 citationsAppl. Phys. Lett. 115, 122104 (2019)
Quantum dynamics of hydrogen in iron-based superconductor LaFeAsO0.9D0.1 measured with inelastic neutron spectroscopy1905.12826v2 · Jun-ichi Yamaura, Haruhiro Hiraka, Soshi Iimura et al.2019 · 4 citationsPhys. Rev. B 99, 220505(R) (2019)
Metallic Spin Liquid-like Behavior of LiV2_2O4_41812.05843v1 · H. Okabe, M. Hiraishi, A. Koda et al.2018 · 11 citationsPhys. Rev. B 99, 041113 (2019)
Local Electronic Structure of Interstitial Hydrogen in Iron Disulfide1808.06153v1 · H. Okabe, M. Hiraishi, S. Takeshita et al.2018 · 12 citationsPhys. Rev. B 98, 075210 (2018)
Electronic correlation in the quasi-two-dimensional electride Y2_2C1806.11260v2 · M. Hiraishi, K. M. Kojima, I. Yamauchi et al.2018 · 23 citationsarXivon Valency
Observation of a Metastable P-Heterocyclic Radical by Muonium Addition to a 1,3-Diphosphacyclobutane-2,4-diyl.29790272 · Ito, Shigekazu, Ueta, Yasuhiro, Koshino, Kota et al.2019 · 23 citationsAngewandte Chemie (International ed. in English). 2018;57(28):8608-8613
Local spin structure of the α\alpha-RuCl3_3 honeycomb-lattice magnet observed via muon spin rotation/relaxation1804.06064v1 · Ichihiro Yamauchi, Masatoshi Hiraishi, Hirotaka Okabe et al.2018 · 15 citationsPhys. Rev. B 97, 134410 (2018)
Metal-Insulator Transition and Pseudogap in Bi1.76_{1.76}Pb0.35_{0.35}Sr1.89_{1.89}CuO6+δ_{6+\delta} High-TcT_c Cuprates1608.06352v2 · M. Miyazaki, R. Kadono, M. Hiraishi et al.2016 · 1 citationPhys. Rev. B 94, 115123 (2016)
Cage Electron-Hydroxyl Complex State as Electron Donor in Mayenite1602.06692v1 · M. Hiraishi, K. M. Kojima, M. Miyazaki et al.2016 · 8 citationsPhys. Rev. B 93, 121201(R) (2016)
Positioning for Endovenous Laser Ablation: Comparative Study with Thigh Stripping.27738455 · Tabuchi, Atsushi, Masaki, Hisao, Yunoki, Yasuhiro et al.2020 · 3 citationsAnnals of vascular diseases. 2016;9(3):154-159
Temperature evolution of correlation strength in the superconducting state of high-Tc cuprates1510.00176v1 · S. Kudo, T. Yoshida, S. Ideta et al.2015 · 3 citationsPhys. Rev. B 92, 195135 (2015)
Structural anomalies and short-range magnetic correlations in the orbitally degenerated system Sr2_2VO4_41507.04139v1 · Ichihiro Yamauchi, Kazuhiro Nawa, Masatoshi Hiraishi et al.2015 · 11 citationsarXiv
Muonium in stishovite: implications for the possible existence of neutral atomic hydrogen in the earth's deep mantle.25675890 · Funamori, Nobumasa, Kojima, Kenji M, Wakabayashi, Daisuke et al.2015 · 3 citationsScientific reports. 2015;5:8437
Bulk superconductivity in undoped T'-La1.9_{1.9}Y0.1_{0.1}CuO4_4 probed by muon spin rotation1405.4594v1 · K. M. Kojima, Y. Krockenberger, I. Yamauchi et al.2014 · 23 citationsPhysical Review B 89, 180508(R) (2014)
Bipartite magnetic parent phases in the iron-oxypnictide superconductor1403.6021v1 · Masatoshi Hiraishi, Soshi Iimura, Kenji M. Kojima et al.2014 · 130 citationsarXiv
Assessment of the characteristics and detectability of skin perfusion pressure measured using a thermostatic heating probe.24386021 · Watanabe, Yoshiko, Masaki, Hisao, Kojima, Kenji et al.2014 · 4 citationsAnnals of vascular diseases. 2013;6(4):718-24
An energy scale directly related to superconductivity in the high-TcT_c cuprate superconductors: Universality from the Fermi arc picture1104.0313v1 · S. Ideta, T. Yoshida, A. Fujimori et al.2011 · 35 citationsPhys. Rev. B 85,104515 (2012)
Enhanced superconducting gaps in the trilayer high-temperature Bi2Sr2Ca2Cu3O(10+δ) cuprate superconductor.20867198 · Ideta, S, Takashima, K, Hashimoto, M et al.2011 · 85 citationsPhysical review letters. 2010;104(22):227001
Evolution of the optical spectrum with doping in iron pnictides Ba(Fe1-xCox)2As21003.5038v1 · M. Nakajima, S. Ishida, K. Kihou et al.2010 · 130 citationsPhys. Rev. B 81, 104528 (2010)
Career total: 360 works. 86 are in this corpus.Showing the 50 most recent.

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