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原田 尚之

原田 尚之 (HARADA, Takayuki) 0000-0002-8657-2258

Address
305-0044 茨城県つくば市並木1-1 [アクセス]

[論文] | [書籍] | [会議録] | [口頭発表] | [その他の文献] | [特許]

論文 TSV

2023
  1. T. Harada, T. Nagai, M. Oishi, Y. Masahiro. Sputter-grown c-axis-oriented PdCoO2 thin films. Journal of Applied Physics. 133 [8] (2023) 085302 10.1063/5.0136749
  2. Tomoki Kawamoto, Anjana Krishnadas, Chia-Hsiu Hsu, Markel Pardo-Almanza, Yuita Fujisawa, Guoqing Chang, Takayuki Harada, Yoshinori Okada. Visualization of robust two-dimensional bulk states with suppressed surface state on epitaxial PdCoO2 thin films with bipolar surfaces. Physical Review Materials. 7 [2] (2023) 024001 10.1103/physrevmaterials.7.024001
2022
  1. Atsushi Kobayashi, Shunya Kihira, Takahito Takeda, Masaki Kobayashi, Takayuki Harada, Kohei Ueno, Hiroshi Fujioka. Crystal‐Phase Controlled Epitaxial Growth of NbN x Superconductors on Wide‐Bandgap AlN Semiconductors. Advanced Materials Interfaces. 9 [31] (2022) 2201244 10.1002/admi.202201244
  2. Takayuki Harada, Yoshinori Okada. Metallic delafossite thin films for unique device applications. APL Materials. 10 [7] (2022) 070902 10.1063/5.0097269
2021
  1. Jin Hong Lee, Takayuki Harada, Felix Trier, Lourdes Marcano, Florian Godel, Sergio Valencia, Atsushi Tsukazaki, Manuel Bibes. Nonreciprocal Transport in a Rashba Ferromagnet, Delafossite PdCoO2. Nano Letters. 21 [20] (2021) 8687-8692 10.1021/acs.nanolett.1c02756
  2. T. Harada. Thin-film growth and application prospects of metallic delafossites. Materials Today Advances. 11 (2021) 100146 10.1016/j.mtadv.2021.100146
  3. T. Harada, P. Bredol, H. Inoue, S. Ito, J. Mannhart, A. Tsukazaki. Determination of the phase coherence length of PdCoO2 nanostructures by conductance fluctuation analysis. Physical Review B. 103 [4] (2021) 045123 10.1103/physrevb.103.045123
2020
  1. T. Miyakawa, T. Harada, S. Ito, A. Tsukazaki. Inhomogeneous interface dipole effect at the Schottky junctions of PdCrO2 on β-Ga2O3 ( 2 ¯ 01 ) substrates. Journal of Applied Physics. 128 [2] (2020) 025302 10.1063/5.0011783
  2. T. Harada, A. Tsukazaki. Dynamic characteristics of PdCoO2/β-Ga2O3 Schottky junctions. Applied Physics Letters. 116 [23] (2020) 232104 10.1063/5.0008137
  3. T. Harada, A. Tsukazaki. Control of Schottky barrier height in metal/β-Ga2O3 junctions by insertion of PdCoO2 layers. APL Materials. 8 [4] (2020) 041109 10.1063/1.5145117
  4. T. Harada, K. Sugawara, K. Fujiwara, M. Kitamura, S. Ito, T. Nojima, K. Horiba, H. Kumigashira, T. Takahashi, T. Sato, A. Tsukazaki. Anomalous Hall effect at the spontaneously electron-doped polar surface of PdCoO2 ultrathin films. Physical Review Research. 2 [1] (2020) 013282 10.1103/physrevresearch.2.013282
2019
  1. T. Harada, S. Ito, A. Tsukazaki. Electric dipole effect in PdCoO2/β-Ga2O3 Schottky diodes for high-temperature operation. Science Advances. 5 [10] (2019) eaax5733 10.1126/sciadv.aax5733
  2. H. Boschker, T. Harada, T. Asaba, R. Ashoori, A. V. Boris, H. Hilgenkamp, C. R. Hughes, M. E. Holtz, L. Li, D. A. Muller, H. Nair, P. Reith, X. Renshaw Wang, D. G. Schlom, A. Soukiassian, J. Mannhart. Ferromagnetism and Conductivity in Atomically Thin SrRuO3. Physical Review X. 9 [1] (2019) 011027 10.1103/physrevx.9.011027
2018
  1. T Harada, J Shiogai, T Miyakawa, T Nojima, A Tsukazaki. Critical current enhancement driven by suppression of superconducting fluctuation in ion-gated ultrathin FeSe. Superconductor Science and Technology. 31 [5] (2018) 055003 10.1088/1361-6668/aab4ea
  2. T. Harada, K. Fujiwara, A. Tsukazaki. Highly conductive PdCoO2 ultrathin films for transparent electrodes. APL Materials. 6 [4] (2018) 046107 10.1063/1.5027579
2017
  1. Takayuki Harada, Atsushi Tsukazaki. A versatile patterning process based on easily soluble sacrificial bilayers. AIP Advances. 7 [8] (2017) 085011 10.1063/1.4993660
2016
  1. T. Harada, M. Matvejeff, R. Takahashi, M. Lippmaa. Superconducting coupling across a spin-filtering manganite tunnel barrier with magnetic disorder. EPL (Europhysics Letters). 115 [6] (2016) 67005 10.1209/0295-5075/115/67005
  2. J. Zabaleta, V. S. Borisov, R. Wanke, H. O. Jeschke, S. C. Parks, B. Baum, A. Teker, T. Harada, K. Syassen, T. Kopp, N. Pavlenko, R. Valentí, J. Mannhart. Hydrostatic pressure response of an oxide-based two-dimensional electron system. Physical Review B. 93 [23] (2016) 235117 10.1103/physrevb.93.235117
2015
  1. C. Woltmann, T. Harada, H. Boschker, V. Srot, P. A. van Aken, H. Klauk, J. Mannhart. Field-Effect Transistors with Submicrometer Gate Lengths Fabricated fromLaAlO3−SrTiO3-Based Heterostructures. Physical Review Applied. 4 [6] (2015) 064003 10.1103/physrevapplied.4.064003
2013
  1. K. Yoshimatsu, H. Wadati, E. Sakai, T. Harada, Y. Takahashi, T. Harano, G. Shibata, K. Ishigami, T. Kadono, T. Koide, T. Sugiyama, E. Ikenaga, H. Kumigashira, M. Lippmaa, M. Oshima, A. Fujimori. Spectroscopic studies on the electronic and magnetic states of Co-doped perovskite manganite Pr0.8Ca0.2Mn1−yCoyO3thin films. Physical Review B. 88 [17] (2013) 174423 10.1103/physrevb.88.174423
  2. Takayuki Harada, Ryota Takahashi, Mikk Lippmaa. Nonmagnetic Sc Substitution in a Perovskite Ferromagnetic Insulator Pr0.8Ca0.2MnO3. Journal of the Physical Society of Japan. 82 [1] (2013) 014801 10.7566/jpsj.82.014801
2011
  1. T. Harada, I. Ohkubo, M. Lippmaa, Y. Matsumoto, M. Sumiya, H. Koinuma, M. Oshima. Modulation of the ferromagnetic insulating phase in Pr0.8 Ca0.2 MnO3 by Co substitution. physica status solidi (RRL) - Rapid Research Letters. 5 [1] (2011) 34-36 10.1002/pssr.201004467
2010
  1. G. Sugano, I. Ohkubo, T. Harada, T. Ohnishi, M. Lippmaa, Y. Matsumoto, H. Koinuma, M. Oshima. Device size dependence of resistance switching performance in metal/manganite/metal trilayers. Materials Science and Engineering: B. 173 [1-3] (2010) 3-6 10.1016/j.mseb.2009.11.022
2009
  1. T. Harada, I. Ohkubo, M. Oshima. Dependence of Magnetic Properties on Laser Ablation Conditions for Epitaxial La0.6Sr0.4MnO3 Thin Films Grown by Pulsed Laser Deposition. MATERIALS TRANSACTIONS. 50 [5] (2009) 1081-1084 10.2320/matertrans.mc200817
2008
  1. T. Harada, I. Ohkubo, K. Tsubouchi, H. Kumigashira, T. Ohnishi, M. Lippmaa, Y. Matsumoto, H. Koinuma, M. Oshima. Trap-controlled space-charge-limited current mechanism in resistance switching at Al/Pr0.7Ca0.3MnO3 interface. Applied Physics Letters. 92 [22] (2008) 222113 10.1063/1.2938049
  2. I. Ohkubo, K. Tsubouchi, T. Harada, H. Kumigashira, K. Itaka, Y. Matsumoto, T. Ohnishi, M. Lippmaa, H. Koinuma, M. Oshima. Field-induced resistance switching at metal/perovskite manganese oxide interface. Materials Science and Engineering: B. 148 [1-3] (2008) 13-15 10.1016/j.mseb.2007.09.004
  3. K. Tsubouchi, I. Ohkubo, T. Harada, H. Kumigashira, Y. Matsumoto, T. Ohnishi, M. Lippmaa, H. Koinuma, M. Oshima. Modification of reflection high-energy electron diffraction system for in situ monitoring of oxide epitaxy at high oxygen pressure. Materials Science and Engineering: B. 148 [1-3] (2008) 16-18 10.1016/j.mseb.2007.09.005
2007
  1. Akihiko Tsuda, Md. Akhtarul Alam, Takayuki Harada, Tatsuya Yamaguchi, Noriyuki Ishii, Takuzo Aida. Spectroscopic Visualization of Vortex Flows Using Dye-Containing Nanofibers. Angewandte Chemie International Edition. 46 [43] (2007) 8198-8202 10.1002/anie.200703083

書籍 TSV

会議録 TSV

2018
  1. David J. Rogers, David C. Look, Ferechteh H. Teherani, Atsushi Tsukazaki, Takayuki Harada. Microfabrication of SrRuO3 thin films on various oxide substrates using LaAlO3/BaOx sacrificial bilayers. . (2018) 10.1117/12.2299958
2015
  1. T. Harada, C. R. Hughes, R. Ashoori, A. V. Boris, H. Hilgenkamp, M. E. Holtz, L. Li, J. Mannhart, D. A. Muller, D. G. Schlom, A. Soukiassian, X. R. Wang, H. Boschker. Properties of single RuO<inf>2</inf> layer embedded in SrTiO<inf>3</inf>. . (2015) 10.1109/intmag.2015.7157250

口頭発表 TSV

2022
  1. HARADA, Takayuki. Polar interfaces of a high-conductivity layered oxide PdCoO2 and wide-bandgap semiconductors. 9th International Symposium on Control of Semiconductor Interfaces (ISCSI-IX). 2022
2021
  1. 原田 尚之. 酸化ガリウムデバイスの動向と酸化物電極の開発. 第34回『長野実装フォーラム』. 2021
  2. 原田 尚之. Delafossite electrodes for harsh-environment semiconductor devices. The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC-12) . 2021

その他の文献 TSV

2022
  1. HARADA, Takayuki. Surface and interface properties of quasi-two-dimensional metallic oxides. JSAP Review. (2022) 220303-220303 10.11470/jsaprev.220303
  2. 原田 尚之. 擬二次元金属酸化物の表面・界面を利用した電子・磁気機能の開拓. 応用物理. 91 [7] (2022) 406-410 10.11470/oubutsu.91.7_406

特許 TSV

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