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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] | [公開特許出願]

論文 TSV

2024
  1. Erika Fukushi, Fumiya Mori, Kota Munefusa, Takayuki Harada, Hiroyuki Oguchi. Epitaxial Thin Film Growth of Perovskite Hydrides MLiH3 (M : Sr, Ba) for the Study of Intrinsic Hydride-Ion Conduction. ACS Applied Energy Materials. 7 [7] (2024) 2810-2815 10.1021/acsaem.3c03188 Open Access
  2. Hitoshi Takane, Takayoshi Oshima, Takayuki Harada, Kentaro Kaneko, Katsuhisa Tanaka. Rutile-type Ge x Sn1−x O2 alloy layers lattice-matched to TiO2 substrates for device applications. Applied Physics Express. 17 [1] (2024) 011008 10.35848/1882-0786/ad15f3 Open Access
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 Open Access
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 Open Access
  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 Open Access
  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 Open Access
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 Open Access
  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 Open Access
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 Open Access
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 Open Access
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. 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
  3. 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
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

2024
  1. TAKANE, Hitoshi, OSHIMA, Takayoshi, HARADA, Takayuki, KANEKO, Kentaro, TANAKA, Katsuhisa. Lattice-matching epitaxy of rutile-type GexSn1−xO2 alloy films on TiO2 substrates for device applications. Compound Semiconductor Week 2024. 2024
  2. 原田 尚之. 金属性デラフォサイトの表面・界面物性と応用展開. 第73回化合物新磁性材料専門研究会. 2024 招待講演
2023
  1. HARADA, Takayuki. Application prospects of metallic delafossite thin films. 4th International Workshop on Nanoelectronics 2023. 2023 招待講演
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 招待講演
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 招待講演
  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 招待講演

その他の文献 TSV

2022
  1. 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
  2. Takayuki Harada. Surface and interface properties of quasi-two-dimensional metallic oxides. JSAP Review. (2022) 220303 10.11470/jsaprev.220303

公開特許出願 TSV

  1. パラジウムコバルト酸化物薄膜、デラフォサイト型酸化物薄膜、デラフォサイト型酸化物薄膜を有するショットキー電極、パラジウムコバルト酸化物薄膜の製造方法及びデラフォサイト型酸化物薄膜の製造方法 (2024)

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