Fluxon Dynamics of High-TC superconductor and device application for THz wave.
| Project/Area Number |
20360151
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Yamagata University |
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Principal Investigator |
NAKAJIMA Kensuke Yamagata University, 大学院・理工学研究科, 教授 (70198084)
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| Co-Investigator(Kenkyū-buntansha) |
WANG HuaーBing (独)物質・材料研究機構, 研究員 (70421427)
WATANABE Takao 弘前大学, 大学院・理工学研究科, 教授 (40431431)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2010: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2009: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2008: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | 高温超伝導体 / 固有ジョセフソン接合 / ボルテクス / テラヘルツ / 磁束量子 / ジョセフソン効果 / ナノデバイス |
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| Research Abstract |
Bi_2Sr_2CaCu_2O_8(Bi-2212) High-T_C superconductor intrinsic Josephson junction(IJJ) is a promising candidate of intense terahertz emitting device. At present, elucidation of the interaction between the traveling fluxons and electromagnetic wave in the junction (Josephson plasma modes) are key to succeed in the terahertz emissions. In this research, we have elucidated (1) Antenna integration effects on flux-flow properties of Bi-2212 IJJ, (2) Excitation phenomena of plasma resonance mode of Bi-2212 IJJ by flux-flow, and demonstrated (3) Terahertz plasma resonance emission from current-injected Bi-2212 IJJ. In addition to above mentioned results, we have comprehensively studied carrier control of Bi-2212 single crystal which dominates junction parameters of Bi-2212 IJJ. As the result, we have found that a partial substitution of Ca site by Y can controls carrier concentration with no degradation in T_C.
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Report
(4 results)
Research Products
(39 results)
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[Journal Article] Intrinsic Surface Resistance of YBCO Thin, Films under DC Magnetic Field, IEEE Trans.2011
Author(s)
K.Nakagawa, T.Honma, K.Takeda, S.Ono, H.Kai, A.Saito, M.Mukaida, K.Nakajima, S.Ohshima
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Journal Title
Appl.Supercond. (in press.)
Related Report
Peer Reviewed
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[Journal Article] Coherent Terahertz Emission of Intrinsic Josephson Junction Stacks in the Hot Spot Regime2010
Author(s)
H.B.Wang, S.Guenon, B.Gross, J.Yuan, Z.G.Jiang, Y.Y.Zhong, M.Grunzweig, A.Iishi, P.H.Wu, T.Hatano, D.Koelle, R.Kleiner
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Journal Title
Phys.Rev.Lett. 105
Pages: 57002-57002
Related Report
Peer Reviewed
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[Journal Article] Terahertz wave emission from intrinsic Josephson junctions in high-Tc superconductors2009
Author(s)
L.Ozyuzer, Y.Simsek, H.Koseoglu, F.Turkoglu, C.Kurter, U.Welp, A.E.Koshelev, K.E.Gray, W.K.Kwok, T.Yamamoto, K.Kadowaki, Y.Koval, H.B.Wang, P Mueller
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Journal Title
Supercond.Sci.Technol. 22
Pages: 114009-114009
Related Report
Peer Reviewed
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[Journal Article] Fast Josephson vortex ratchet made of intrinsic Josephson junctions in Bi2Sr2CaCu2O82009
Author(s)
H.B.Wang, B.Y.Zhu, C.Gurlich, M.Ruoff, S.Kim, T.Hatano, B.R.Zhao, Z.X.Zhao, E.Goldobin, D.Koelle, R.Kleiner
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Journal Title
Related Report
Peer Reviewed
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[Presentation] THz Emission from Large Intrinsic Josephson Junctions2008
Author(s)
H. B. Wang, S. Guenon, J. Yuan, A. Iishi, S. Arisawa, et.al.
Organizer
The 6^<th> Int. Symp. on Intrinsic Josephson Effect and Plasma Oscillations in High-Tc Superconductors (Plasma 2008)
Place of Presentation
Pohang University of Science and Technology
Year and Date
2008-07-17
Related Report
