Search Results - "Kawamura, Minoru"

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  1. 1

    Current-induced switching of proximity-induced ferromagnetic surface states in a topological insulator by Mogi, Masataka, Yasuda, Kenji, Fujimura, Reika, Yoshimi, Ryutaro, Ogawa, Naoki, Tsukazaki, Atsushi, Kawamura, Minoru, Takahashi, Kei S., Kawasaki, Masashi, Tokura, Yoshinori

    Published in Nature communications (03-03-2021)
    “…Electrical manipulation of magnetization could be an essential function for energy-efficient spintronics technology. A magnetic topological insulator,…”
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  2. 2

    Large non-reciprocal charge transport mediated by quantum anomalous Hall edge states by Yasuda, Kenji, Morimoto, Takahiro, Yoshimi, Ryutaro, Mogi, Masataka, Tsukazaki, Atsushi, Kawamura, Minoru, Takahashi, Kei S., Kawasaki, Masashi, Nagaosa, Naoto, Tokura, Yoshinori

    Published in Nature nanotechnology (01-10-2020)
    “…The topological nature of the quantum anomalous Hall effect (QAHE) causes a dissipationless chiral edge current at the sample boundary 1 , 2 . Of fundamental…”
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  3. 3

    Current-induced magnetization switching at charge-transferred interface between topological insulator (Bi,Sb)2Te3 and van der Waals ferromagnet Fe3GeTe2 by Fujimura, Reika, Yoshimi, Ryutaro, Mogi, Masataka, Tsukazaki, Atsushi, Kawamura, Minoru, Takahashi, Kei S., Kawasaki, Masashi, Tokura, Yoshinori

    Published in Applied physics letters (19-07-2021)
    “…Ferromagnetic two-dimensional van der Waals materials attract enormous interest as a platform to explore spin-related quantum phenomena, especially in…”
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  4. 4

    Visualization of an axion insulating state at the transition between 2 chiral quantum anomalous Hall states by Allen, Monica, Cui, Yongtao, Ma, Eric Yue, Mogi, Masataka, Kawamura, Minoru, Fulga, Ion Cosma, Goldhaber-Gordon, David, Tokura, Yoshinori, Shen, Zhi-Xun

    “…Quantum-relativistic materials often host electronic phenomena with exotic spatial distributions. In particular, quantum anomalous Hall (QAH) insulators…”
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  5. 5

    Quantum anomalous Hall effect with a permanent magnet defines a quantum resistance standard by Okazaki, Yuma, Oe, Takehiko, Kawamura, Minoru, Yoshimi, Ryutaro, Nakamura, Shuji, Takada, Shintaro, Mogi, Masataka, Takahashi, Kei S., Tsukazaki, Atsushi, Kawasaki, Masashi, Tokura, Yoshinori, Kaneko, Nobu-Hisa

    Published in Nature physics (01-01-2022)
    “…The quantum anomalous Hall effect (QAHE) 1 – 6 is a transport phenomenon where the Hall resistance is quantized to the von Klitzing constant due to the…”
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  6. 6

    Tailoring tricolor structure of magnetic topological insulator for robust axion insulator by Mogi, Masataka, Kawamura, Minoru, Tsukazaki, Atsushi, Yoshimi, Ryutaro, Takahashi, Kei S, Kawasaki, Masashi, Tokura, Yoshinori

    Published in Science advances (06-10-2017)
    “…Exploration of novel electromagnetic phenomena is a subject of great interest in topological quantum materials. One of the unprecedented effects to be…”
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  7. 7

    Gate-electric-field and magnetic-field control of versatile topological phases in a semi-magnetic topological insulator by Watanabe, Ryota, Yoshimi, Ryutaro, Takahashi, Kei S., Tsukazaki, Atsushi, Kawasaki, Masashi, Kawamura, Minoru, Tokura, Yoshinori

    Published in Applied physics letters (30-10-2023)
    “…Surface states of a topological insulator demonstrate interesting quantum phenomena, such as the quantum anomalous Hall (QAH) effect and the quantum…”
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  8. 8

    Precise resistance measurement of quantum anomalous Hall effect in magnetic heterostructure film of topological insulator by Okazaki, Yuma, Oe, Takehiko, Kawamura, Minoru, Yoshimi, Ryutaro, Nakamura, Shuji, Takada, Shintaro, Mogi, Masataka, Takahashi, Kei S., Tsukazaki, Atsushi, Kawasaki, Masashi, Tokura, Yoshinori, Kaneko, Nobu-Hisa

    Published in Applied physics letters (06-04-2020)
    “…The accuracy of Hall resistance in the quantum anomalous Hall effect has been studied at zero magnetic field using Crx(Bi,Sb) 2 − x Te3-based magnetic…”
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  9. 9

    Laughlin charge pumping in a quantum anomalous Hall insulator by Kawamura, Minoru, Mogi, Masataka, Yoshimi, Ryutaro, Morimoto, Takahiro, Takahashi, Kei S., Tsukazaki, Atsushi, Nagaosa, Naoto, Kawasaki, Masashi, Tokura, Yoshinori

    Published in Nature physics (19-01-2023)
    “…Adiabatic charge pumping is one of the most salient features of topological phases of matter 1 – 3 . Laughlin’s charge pumping in a quantum Hall system is the…”
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  10. 10

    Enhancement of anomalous Hall effect in epitaxial thin films of intrinsic magnetic topological insulator MnBi2Te4 with Fermi-level tuning by Watanabe, Ryota, Yoshimi, Ryutaro, Kawamura, Minoru, Kaneko, Yoshio, Takahashi, Kei S., Tsukazaki, Atsushi, Kawasaki, Masashi, Tokura, Yoshinori

    Published in Applied physics letters (17-01-2022)
    “…The recently discovered intrinsic magnetic topological insulator MnBi2Te4 has attracted keen interest for exotic quantum states such as a quantum anomalous…”
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  11. 11

    Current-Driven Instability of the Quantum Anomalous Hall Effect in Ferromagnetic Topological Insulators by Kawamura, Minoru, Yoshimi, Ryutaro, Tsukazaki, Atsushi, Takahashi, Kei S, Kawasaki, Masashi, Tokura, Yoshinori

    Published in Physical review letters (07-07-2017)
    “…The instability of the quantum anomalous Hall (QAH) effect has been studied as a function of the electric current and temperature in ferromagnetic topological…”
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  12. 12

    Electronic Magnetization of a Quantum Point Contact Measured by Nuclear Magnetic Resonance by Kawamura, Minoru, Ono, Keiji, Stano, Peter, Kono, Kimitoshi, Aono, Tomosuke

    Published in Physical review letters (17-07-2015)
    “…We report an electronic magnetization measurement of a quantum point contact (QPC) based on nuclear magnetic resonance (NMR) spectroscopy. We find that NMR…”
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  13. 13

    Excitatory effect of Neurotropin® on noradrenergic neurons in rat locus coeruleus by Okai, Hisashi, Okazaki, Ryohei, Kawamura, Minoru, Yoshimura, Megumu

    Published in Life sciences (1973) (01-09-2015)
    “…Although the clinical use of Neurotropin® as an analgesic for chronic pain has been firmly established, its analgesic mechanism is still unclear. In this…”
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  14. 14

    Nonreciprocal charge transport in topological superconductor candidate Bi2Te3/PdTe2 heterostructure by Masuko, Makoto, Kawamura, Minoru, Yoshimi, Ryutaro, Hirayama, Motoaki, Ikeda, Yuya, Watanabe, Ryota, He, James Jun, Maryenko, Denis, Tsukazaki, Atsushi, Takahashi, Kei S., Kawasaki, Masashi, Nagaosa, Naoto, Tokura, Yoshinori

    Published in npj quantum materials (30-10-2022)
    “…In a hybrid system of topological insulator (TI)/superconductor (SC), the proximity-induced topological superconductivity is expected to appear at the…”
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  15. 15

    Peculiar magnetotransport properties in epitaxially stabilized orthorhombic Ru3+ perovskite LaRuO3 and NdRuO3 by Zhang, Lingfei, Fujita, Takahiro C., Masutake, Yuuki, Kawamura, Minoru, Arima, Taka-hisa, Kumigashira, Hiroshi, Tokunaga, Masashi, Kawasaki, Masashi

    Published in Communications materials (14-03-2024)
    “…Complex oxides are interesting materials where multiple physical properties and functionalities can be realized by integrating different elements in a single…”
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  16. 16

    Second morning urine method is superior to the casual urine method for estimating daily salt intake in patients with hypertension by Kawamura, Minoru, Ohmoto, Akihiro, Hashimoto, Tomoko, Yagami, Fukuko, Owada, Masahiko, Sugawara, Takashi

    Published in Hypertension research (01-06-2012)
    “…The accuracy of the casual urine (CU) method for estimating daily salt intake was compared with the second morning urine (SMU) method and with 24-h urine…”
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  17. 17

    Seasonal Variation in the Daily Urinary Sodium Excretion in Outpatients from the Morioka Region of Northern Japan by Kawamura, Minoru, Hashimoto, Tomoko, Ogino, Tadayoshi, Kaneko, Hirosumi, Mifune, Shinichi, Watanabe, Tatsuo, Usui, Yasuo, Tsuchikawa, Goro, Shozushima, Masakazu, Kudou, Hiroshi

    Published in Internal Medicine (01-01-2017)
    “…Objective Although the daily urinary sodium excretion (UNaV) is considered to provide the most reliable estimate of the daily sodium intake, it may be affected…”
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  18. 18

    Effectiveness of a Spot Urine Method in Evaluating Daily Salt Intake in Hypertensive Patients Taking Oral Antihypertensive Drugs by Kawamura, Minoru, Kusano, Yuki, Takahashi, Toru, Owada, Masahiko, Sugawara, Takashi

    Published in Hypertension research (01-06-2006)
    “…Kawasaki et al. developed a spot urine method (SUM) for evaluating daily salt intake using one pre-breakfast sample obtained after initial voiding upon…”
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  19. 19

    The influence of posture on the estimation of daily salt intake by the second morning urine method by Kawamura, Minoru, Hashimoto, Tomoko, Owada, Masahiko, Sugawara, Takashi

    Published in Hypertension research (01-05-2010)
    “…The second morning urine (SMU) method was developed to evaluate daily salt intake, but the posture that should be adopted until the SMU collection remains…”
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  20. 20

    Seasonal Variation of Severe Hypoglycemia in Hospitalized Patients 60 years of Age or Older Presenting to an Emergency Center Hospital between 2004 and 2010 by Hashimoto, Tomoko, Morita, Ai, Hashimoto, Yo, Yagami, Fukuko, Sakamoto, Kazutaka, Owada, Masahiko, Sugawara, Takashi, Kawamura, Minoru

    Published in Internal Medicine (01-01-2013)
    “…Objective To investigate the seasonal variation of severe hypoglycemia in hospitalized elderly patients. Methods Among the patients hospitalized in our…”
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