Organization
Graduate School of Engineering Materials Physics 1 Associate professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Physical Science and Engineering
Title
Associate professor
HATANO Takafumi
Degree 1
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博士（理学） （ 2010.3 東北大学 ）
Research Interests 2
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thin films
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superconductivity
Research Areas 1
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Others / Others / 応用物性
Professional Memberships 3
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The Physical Society of Japan
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The Japan Society of Applied Physics
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Americal Physical Society
Papers 43
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Structural analysis and transport properties of [010]-tilt grain boundaries in Fe(Se,Te)
Iida, K; Yamauchi, Y; Hatano, T; Walter, K; Holzapfel, B; Hänisch, J; Guo, ZM; Gao, HY; Shi, HS; Tokuta, S; Hata, S; Yamamoto, A; Ikuta, H
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS Vol. 25 ( 1 ) 2024.12
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Hatano, T; Qin, DY; Iida, K; Gao, HY; Guo, ZM; Saito, H; Hata, S; Shimada, Y; Naito, M; Yamamoto, A
NPG ASIA MATERIALS Vol. 16 ( 1 ) 2024.8
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Fabrication of microstrips of iron-based superconductor NdFeAs(O,H)
Yoshikawa, A; Hatano, T; Hibino, H; Imanaka, H; Ikuta, H
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 37 ( 8 ) 2024.8
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Takada, K; Shibutani, J; Yagi, K; Ikawa, F; Yokoyama, Y; Hirai, D; Okamoto, Y; Katayama, N; Umena, Y; Chavas, LMGH; Hatano, T; Fujita, A; Takenaka, K
APPLIED PHYSICS LETTERS Vol. 125 ( 4 ) 2024.7
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Takenaka, K; Mizuno, Y; Shibutani, J; Kishida, K; Takada, K; Yagi, K; Yokoyama, Y; Katayama, N; Okamoto, Y; Hirai, D; Hatanó, T; Fujita, A
APPLIED PHYSICS LETTERS Vol. 123 ( 23 ) 2023.12
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Theory of Josephson current on a lattice model of grain boundary in <i>d</i>-wave superconductors Reviewed
Sakamori, T; Kashiwaya, S; Yano, R; Tanaka, Y; Hatano, T; Yada, K
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 36 ( 8 ) 2023.8
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Thin film growth of Ba(Zn,Fe)(2)As-2 by molecular beam epitaxy Reviewed
Ikegami R., Hatano T., Kiyozawa T., Ishida T., Tomizawa Y., Iida K., Ikuta H.
THIN SOLID FILMS Vol. 758 2022.9
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Electrical-field-induced insulator-to-metal transition in samarium monosulfides Reviewed
Kishida, K; Shibutani, J; Hatano, T; Yokoyama, Y; Katayama, N; Okamoto, Y; Nakamura, Y; Kishida, H; Suzuki, HS; Takehana, K; Imanaka, Y; Takenaka, K
APPLIED PHYSICS LETTERS Vol. 121 ( 12 ) 2022.9
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Microstructure, pinning properties, and aging of CSD-grown SmBa2Cu3O7-delta films with and without BaHfO3 nanoparticles Reviewed International coauthorship
Haenisch Jens, Iida Kazumasa, Cayado Pablo, Erbe Manuela, Gruenewald Lukas, Hatano Takafumi, Okada Tatsunori, Gerthsen Dagmar, Awaji Satoshi, Holzapfel Bernhard
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 35 ( 8 ) 2022.8
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Inter- to intra-layer resistivity anisotropy of NdFeAs(O,H) with various hydrogen concentrations Reviewed
Chen M. Y., Iida K., Kondo K., Haenisch J., Hatano T., Ikuta H.
PHYSICAL REVIEW MATERIALS Vol. 6 ( 5 ) 2022.5
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Approaching the ultimate superconducting properties of (Ba,K)Fe<sub>2</sub>As<sub>2</sub> by naturally formed low-angle grain boundary networks Reviewed International coauthorship
Iida, K; Qin, DY; Tarantini, C; Hatano, T; Wang, C; Guo, ZM; Gao, HY; Saito, H; Hata, S; Naito, M; Yamamoto, A
NPG ASIA MATERIALS Vol. 13 ( 1 ) 2021.10
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Guo, ZM; Gao, HY; Kondo, K; Hatano, T; Iida, K; Hänisch, J; Ikuta, H; Hata, S
ACS APPLIED ELECTRONIC MATERIALS Vol. 3 ( 7 ) page： 3158 - 3166 2021.7
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High <i>J</i><sub>c</sub> and low anisotropy of hydrogen doped NdFeAsO superconducting thin film
Iida, K; Hänisch, J; Kondo, K; Chen, MY; Hatano, T; Wang, C; Saito, H; Hata, S; Ikuta, H
SCIENTIFIC REPORTS Vol. 11 ( 1 ) 2021.3
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Realization of epitaxial thin films of the superconductor K-doped BaFe<sub>2</sub>As<sub>2</sub> Reviewed
Qin, DY; Iida, K; Hatano, T; Saito, H; Ma, YM; Wang, C; Hata, S; Naito, M; Yamamoto, A
PHYSICAL REVIEW MATERIALS Vol. 5 ( 1 ) 2021.1
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Kan, D; Hatano, T; Abe, A; Ikuta, H; Shimakawa, Y
APPLIED PHYSICS LETTERS Vol. 117 ( 23 ) 2020.12
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Thin film growth of CaAgAs by molecular beam epitaxy Reviewed
Hatano, T; Nakamura, I; Ohta, S; Tomizawa, Y; Urata, T; Iida, K; Ikuta, H
JOURNAL OF PHYSICS-CONDENSED MATTER Vol. 32 ( 43 ) 2020.10
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NdFeAs(O,H) epitaxial thin films with high critical current density Reviewed
Kondo, K; Motoki, S; Hatano, T; Urata, T; Iida, K; Ikuta, H
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 33 ( 9 ) 2020.9
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Microfabrication of NdFeAs(O,F) thin films and evaluation of the transport properties Reviewed
Tsuji, Y; Hatano, T; Kondo, K; Iida, K; Mawatari, Y; Ikuta, H
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 33 ( 7 ) 2020.7
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Anisotropy of the transport properties of NdFeAs(O,F) thin films grown on vicinal substrates Reviewed
Iida, K; Matsumoto, T; Kondo, K; Hatano, T; Ikuta, H
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 33 ( 4 ) 2020.4
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Microscopic origin of highly enhanced current carrying capabilities of thin NdFeAs(O,F) films Reviewed
Kauffmann-Weiss, S; Iida, K; Tarantini, C; Boll, T; Schneider, R; Ohmura, T; Matsumoto, T; Hatano, T; Langer, M; Meyer, S; Jaroszynski, J; Gerthsen, D; Ikuta, H; Holzapfel, B; Hänisch, J
NANOSCALE ADVANCES Vol. 1 ( 8 ) page： 3036 - 3048 2019.8
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Grain boundary characteristics of oxypnictide NdFeAs(O,F) superconductors Reviewed
Iida, K; Omura, T; Matsumoto, T; Hatano, T; Ikuta, H
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 32 ( 7 ) 2019.7
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Piatti, E; Hatano, T; Daghero, D; Galanti, F; Gerbaldi, C; Guastella, S; Portesi, C; Nakamura, I; Fujimoto, R; Iida, K; Ikuta, H; Gonnelli, RS
PHYSICAL REVIEW MATERIALS Vol. 3 ( 4 ) 2019.4
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Iida, K; Sugimoto, Y; Hatano, T; Urata, T; Langer, M; Holzapfel, B; Hänisch, J; Ikuta, H
APPLIED PHYSICS EXPRESS Vol. 12 ( 1 ) 2019.1
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Hänisch, J; Iida, K; Ohmura, T; Matsumoto, T; Hatano, T; Langer, M; Kauffmann-Weiss, S; Ikuta, H; Holzapfel, B
MRS COMMUNICATIONS Vol. 8 ( 4 ) page： 1433 - 1438 2018.12
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Nonmonotonic and anisotropic magnetoresistance effect in antiferromagnet CaMn2Bi2 Reviewed
Kawaguchi N., Urata T., Hatano T., Iida K., Ikuta H.
PHYSICAL REVIEW B Vol. 97 ( 14 ) 2018.4
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Nonmonotonic and anisotropic magnetoresistance effect in antiferromagnet CaMn2Bi2
Kawaguchi N., Urata T., Hatano T., Iida K., Ikuta H.
PHYSICAL REVIEW B Vol. 97 page： 140403 2018.4
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Daghero Dario, Tortello Mauro, Ummarino Giovanni A., Piatti Erik, Ghigo Gianluca, Hatano Takafumi, Kawaguchi Takahiko, Ikuta Hiroshi, Gonnelli Renato S.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 31 ( 3 ) 2018.3
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Effect of alpha-particle irradiation on a NdFeAs (O,F) thin film
Tarantini C., Iida K., Sumiya N., Chihara M., Hatano T., Ikuta H., Singh R. K., Newman N., Larbalestier D. C.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY Vol. 31 ( 3 ) 2018.3
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FABRICATION OF GRAIN BOUNDARY JUNCTIONS USING NdFeAs(O,F) SUPERCONDUCTING THIN FILMS
Omura T., Matsumoto T., Hatano T., Iida K., Ikuta H.
30TH INTERNATIONAL SYMPOSIUM ON SUPERCONDUCTIVITY (ISS2017) Vol. 1054 2018
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Hall effect measurements of high-quality Mn3CuN thin films and the electronic structure
Matsumoto Toshiki, Hatano Takafumi, Urata Takahiro, Iida Kazumasa, Takenaka Koshi, Ikuta Hiroshi
PHYSICAL REVIEW B Vol. 96 ( 20 ) 2017.11
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Selective mass enhancement close to the quantum critical point in BaFe2(As1-xPx)(2)
Grinenko V., Iida K., Kurth F., Efremov D. V., Drechsler S. -L., Cherniavskii I., Morozov I., Haenisch J., Foerster T., Tarantini C., Jaroszynski J., Maiorov B., Jaime M., Yamamoto A., Nakamura I., Fujimoto R., Hatano T., Ikuta H., Huehne R.
SCIENTIFIC REPORTS Vol. 7 2017.7
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Effect of ion irradiation on surface morphology and superconductivity of BaFe2(As1-xPx)(2) films
Daghero D., Tortello M., Gozzelino L., Gonnelli R. S., Hatano T., Kawaguchi T., Ikuta H.
APPLIED SURFACE SCIENCE Vol. 395 page： 9 - 15 2017.2
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Direct growth of superconducting NdFeAs(O,F) thin films by MBE Reviewed
M. Chihara, N. Sumiya, K. Arai, A. Ichinose, I. Tsukada, T. Hatano, K. Iida, H. Ikuta
Physica C: Superconductivity and its Applications Vol. 518 page： 69 2015
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強相関酸化物における電界効果 Reviewed
中野匡規、畑野敬史、澤彰仁、岩佐義宏
固体物理 Vol. 49 ( 6 ) page： 381 2014
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Highly textured oxypnictide superconducting thin films on metal substrates Reviewed
K. Iida, F. Kurth, M. Chihara, N. Sumiya, V. Grinenko, A. Ichinose, I. Tsukada, J. Hanisch, V. Matias, T. Hatano, B. Holzapfel, and H. Ikuta
Applied Physics Letters Vol. 104 page： 023507 2014
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Gate Control of Percolative Conduction in Strongly Correlated Manganite Films
T. Hatano, Z. G. Sheng, M. Nakamura, M. Nakano, M. Kawasaki, Y. Iwasa, Y. Tokura
Advanced Materials Vol. 6 page： 2874 2014
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Electrically Tunable Anomalous Hall Effect in Pt Thin Films
S. Shimizu, K. S. Takahashi, T. Hatano, M. Kawasaki,Y. Tokura,Y. Iwasa
Physical Review Letters Vol. 111 page： 216803 2013
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Gate Control of ElectronicPhases in a Quarter-Filled Manganite
T. Hatano, Y. Ogimoto, N. Ogawa, M. Nakano, S. Ono, Y. Tomioka, K. Miyano, Y. Iwasa, Y. Tokura
Scientific Reports Vol. 3 page： 2904 2013
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Infrared-sensitive electrochromic device based on VO2
M. Nakano, K. Shibuya, N. Ogawa, T. Hatano, M. Kawasaki, Y. Iwasa, Y. Tokura
Applied Physics Letters Vol. 103 page： 153503 2013
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Gate control of surface transport in MBE-grown topological insulator (Bi1-xSbx)2Te3 thin films
S. Shimizu, R. Yoshimi, T. Hatano, K. S. Takahashi, A. Tsukazaki, M. Kawasaki, Y. Iwasa, Y. Tokura
Physical Review B Vol. 86 page： 045319 2012
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Collective bulk carrier delocalization driven by electrostatic surface charge accumulation
M. Nakano, K. Shibuya, D. Okuyama, T. Hatano, S. Ono, M. Kawasaki, Y. Iwasa, Y. Tokura
Nature Vol. 487 page： 459 2012
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Transverse Photo Voltage Induced by Circularly Polarized Light
T. Hatano, T. Ishihara, S. G. Tikhodeev, N. A. Gippius
Physical Review Letters Vol. 103 page： 103906 2009
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Optical rectification effect in 1D metallic photonic crystal slabs with asymmetric unit cell
T. Hatano, B. Nishikawa, M. Iwanaga, T. Ishihara
Optics Express Vol. 16 page： 8236 2009
Presentations 2
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トポタクティック反応による鉄系超伝導体NdFeAs(O,H)薄膜の作製と物性評価
第75回日本物理学会年次大会
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NdFeAs(O,F)およびNdFeAs(O,H)超伝導薄膜における 超伝導特性の比較
畑野敬史
2020年度日本物理学会秋季大会
Research Project for Joint Research, Competitive Funding, etc. 6
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マンガン窒化物を用いた温度無応答抵抗素子の開発
2022.5
立松財団研究助成
Grant amount：\1500000
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マンガン窒化物を用いた温度安定性の高い次世代抵抗素子の実現
2022.5
日比科学技術振興財団 日比科学技術振興財団研究助成
畑野敬史
Authorship：Principal investigator Grant type：Competitive
Grant amount：\2000000
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高い熱伝導率を示す新規III-V族半導体ヒ化ホウ素の薄膜作製
2020.6
村田学術振興財団 村田学術振興財団研究助成
畑野敬史
Authorship：Principal investigator Grant type：Competitive
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高い温度安定を示す高性能抵抗素子の開発
2019.11
住友財団基礎科学研究助成
畑野敬史
Grant type：Competitive
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機能性薄膜材料における軽元素量の電界制御
2016.4 - 2018.3
挑戦的萌芽研究
Authorship：Principal investigator Grant type：Competitive
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電気二重層トランジスタを用いた鉄酸化物の酸化還元反応制御
2014.4 - 2016.3
若手研究(B)
Grant type：Competitive
KAKENHI (Grants-in-Aid for Scientific Research) 5
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30K以上の温度域で動作する鉄系超伝導体ベース単一光子検出器の開発
Grant number：23H01444 2023.4 - 2026.3
科学研究費助成事業 基盤研究(B)
畑野 敬史, 生田 博志, 山下 太郎
Authorship：Principal investigator
Grant amount：\18590000 （ Direct Cost: \14300000 、 Indirect Cost：\4290000 ）
超伝導現象を活用した単一光子検出器(SPD)は、検出効率/検出精度/検出速度など多くの点で既存の半導体SPDを凌駕するため、量子暗号通信などにおけるキーデバイスとして期待されている。しかし超伝導SPDは、超伝導転移温度以下でしか機能しない。加えて薄膜化、微細加工によって転移温度が劣化するため、現行検出器の動作温度は極低温にとどまり、その超性能を活用することが困難である。以上を受け、鉄系高温超伝導体NdFeAs(O,H)に注目する。本系は50 Kを超える転移温度を示すだけでなく、他の超伝導体と比べて高い微細加工耐性を有する。本系の高品位極薄膜の作製と極微細化を実現し高温動作超伝導SPDを目指す。
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30K以上の温度域で動作する鉄系超伝導体ベース単一光子検出器の開発
Grant number：23K26138 2023.4 - 2026.3
科学研究費助成事業 基盤研究(B)
畑野 敬史, 生田 博志, 山下 太郎
Authorship：Principal investigator
Grant amount：\18590000 （ Direct Cost: \14300000 、 Indirect Cost：\4290000 ）
超伝導現象を活用した単一光子検出器(SPD)は、検出効率/検出精度/検出速度など多くの点で既存の半導体SPDを凌駕するため、量子暗号通信などにおけるキーデバイスとして期待されている。しかし超伝導SPDは、超伝導転移温度以下でしか機能しない。加えて薄膜化、微細加工によって転移温度が劣化するため、現行検出器の動作温度は極低温にとどまり、その超性能を活用することが困難である。以上を受け、鉄系高温超伝導体NdFeAs(O,H)に注目する。本系は50 Kを超える転移温度を示すだけでなく、他の超伝導体と比べて高い微細加工耐性を有する。本系の高品位極薄膜の作製と極微細化を実現し高温動作超伝導SPDを目指す。
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Grant number：20H02681 2020.4 - 2023.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
IIDA Kazumasa
Authorship：Coinvestigator(s) Grant type：Competitive
In this study, we have fabricated epitaxial thin films of the high-Tc iron-based superconductor NdFeAs(O,H), in which the oxygen site is partially replaced by hydrogen, and evaluated the physical properties of NdFeAs(O,H). As a result, NdFeAs(O,H) has higher superconducting properties (e.g. critical current density Jc, irreversibility field and low anisotropy), than NdFeAs(O,F). However, the decay of Jc with external magnetic fields was large, hence it is necessary to improve the in-field Jc. Although the inter-grain Jc has already begun to decay at a grain boundary angle of 6 degree, the absolute value was 6.2 MA/cm2, which is more than one order of magnitude higher than that in iron-based superconductors. Therefore, NdFeAs(O,H) is a suitable material for application among iron-based superconductors.
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Growth of high-quality thin films of the novel ZnAs-based magnetic semiconductors and improving the properties
Grant number：17H02921 2017.4 - 2020.3
Ikuta Hiroshi
Authorship：Coinvestigator(s)
We studied thin film growth of BaZn2As2, the mother compound of novel dilute magnetic semiconductors that are drawing considerable attention in recent years. The thin film growth of this compound had been possible only by a complex, five-step process until the start of the present study, while we have established a simple one-step growth method by means of molecular beam epitaxy. Thin films in which Fe was partially substituted for Zn were also grown. Transport measurements revealed that the partially Fe substituted films are n-type semiconductors, and the energy gap decreased with Fe content. The magnetization measurements showed that the Fe substituted films exhibit ferromagnetic behavior. Single crystals of compounds in which As was replaced by Sb or P were also grown, and the physical properties were studied. In particular, we observed a ferromagnetic behavior at room temperature for the Sb-based compound.
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field effect tuning of light elements in functional thin films
Grant number：16K13684 2016.4 - 2018.3
Hatano Takafumi
Authorship：Principal investigator
Grant amount：\3770000 （ Direct Cost: \2900000 、 Indirect Cost：\870000 ）
Some of functional materials contain light elements such as oxygen, nitrogen, fluorine. It is often found difficulty in the control of the amount of light elements in these material system.
In this research, we aim to control the amount of light elements in materials by using a strong electric field generated in electric double layer transistors . We succeeded to induce the resistance changes by applying gate voltages, which seems to be attributable to changes of the amount of light elements in some materials, such as nitride thin films and iron based superconductors containing fluorine.
Teaching Experience (On-campus) 10
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Physical Science and Engineering Laboratory 3
2022
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Seminar on Materials Physics 1A
2021
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電子物性工学セミナーIB
2020
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電子物性工学セミナーIA
2020
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物理工学実験第２・３
2020
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物理工学実験第１
2020
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電子物性工学セミナーIC
2020
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電子物性工学特別実験および演習B
2020
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電子物性工学特別実験および演習A
2020
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電子物性工学セミナーID
2020
Media Coverage 1
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名大・東京農工大・九大、鉄系高温超伝導体での超伝導電流で成果 Internet
日本経済新聞 2021.10