Growth of large-sized crystals of high-Tc superconductors and their physical properties

• Project/Area Number: 22560018
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: ITO Toshimitsu 独立行政法人産業技術総合研究所, 電子光技術研究部門, 上級主任研究員 (80356485)
• Co-Investigator(Renkei-kenkyūsha): TOMIOKA Yasuhide 独立行政法人産業技術総合研究所, 電子光技術研究部門, 主任研究員 (60357572)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 超伝導体 / 結晶成長 / レーザ加熱 / 酸化物高温超伝導体 / 低温物性 / 電子輸送特性 / 1/8異常

Research Abstract

In order to grow large-sized crystals of high-Tc superconductors that are important but difficult to grow, we tried to grow such crystals by laser heating which suppress undesirable reactions by well-controlled focusing. We have successfullygrown large-si

Research Products

• [Journal Article] Laser-diode-heated floating zone (LDFZ) method appropriate to crystal growth of incongruently melting materials (2013)
  • Author(s): T. Ito, Y. Tomioka, 他
  • Journal Title: J. Cryst. Growth Volume: Vol. 363, No. 1 Pages: 264-269
  • DOI: 10.1016/j.jcrysgro.2012.10.059
  • Peer Reviewed
• [Journal Article] Ca_2Y_2Cu_5O_<10>: The First Frustrated Quasi-1D Ferromagnet Close to Criticality (2012)
  • Author(s): R. O. Kuzian, T. Ito, 他 10名
  • Journal Title: Phys. Rev. Lett Volume: Vol. 109, No. 11 Issue: 11
  • DOI: 10.1103/physrevlett.109.117207
  • Peer Reviewed
• [Journal Article] Electric Polarization induced by Neel Order without Magnetic Superlattice : Experimental Study of Cu_3Mo_2O_9 and Numerical Study of a Small Spin Cluster (2011)
  • Author(s): H.Kuroe, T.Hosaka, S.Hachiuma, T.Sekine, M.Hase, K.Oka, T.Ito, H.Eisaki, M.Fujisawa, S.Okubo, H.Ohta
  • Journal Title: Journal of the Physical Society of Japan Volume: 80 Issue: 8 Pages: 083705-083705
  • DOI: 10.1143/jpsj.80.083705
  • Peer Reviewed
• [Journal Article] Crystal growth of Cu3-xZnxMo2O9 by continuous solid-state crystallization method (2011)
  • Author(s): K.Oka, T.Ito, et al
  • Journal Title: Journal of Crystal Growth Volume: 334 Issue: 1 Pages: 108-112
  • DOI: 10.1016/j.jcrysgro.2011.08.031
  • Peer Reviewed
• [Journal Article] Photoemission Study of La_<8-x>Sr_xCu_8O_<20>: Impact of the Charge and Spin Density Waves on the Electronic Structure (2010)
  • Author(s): N. L. Saini, T. Ito, 他
  • Journal Title: J. Phys. Soc. Jpn Volume: Vol. 79, No. 11 Issue: 11 Pages: 114718-114718
  • DOI: 10.1143/jpsj.79.114718
  • Peer Reviewed
• [Journal Article] Photoemission study of La_<8-X> Sr_xCu_8O_20 : Impact of the charge and spindensity waves on the electronic structure (2010)
  • Author(s): N.L.Saini, T.Ito, 他
  • Journal Title: Journal of the Physical Society of Japan Volume: 79
  • Peer Reviewed
• [Presentation] レーザ加熱結晶育成装置の開発と結晶育成への適用 (2011)
  • Author(s): 伊藤利充
  • Organizer: 第41回結晶成長国内会議
  • Place of Presentation: つくば国際会議場(茨城県)
  • Year and Date: 2011-11-03
• [Presentation] 産総研の先端結晶育成技術 (2011)
  • Author(s): 伊藤利充
  • Organizer: 第35回結晶成長討論会
  • Place of Presentation: ビアスパークしもつま(茨城県)(招待講演)
  • Year and Date: 2011-09-08
• [Presentation] Growth and physical properties of La_<2-x>Ba_xCuO_4 single crystals by use of newly developed floating-zone furnace with laser irradiation (2011)
  • Author(s): T.Ito, T.Ushiyama, Y.Tomioka
  • Organizer: 11th Korea-Japan-Taiwan Symposium on Strongly Correlated Electron System
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2011-02-11
• [Presentation] 新開発 LDFZ 法により育成した La_<2-x>Ba_xCuO_4(x～1/8)単結晶の物性 (2010)
  • Author(s): 伊藤利充
  • Organizer: 日本物理学会 2010 年秋季大会
  • Place of Presentation: 大阪府立大学(大阪府)
  • Year and Date: 2010-09-23
• [Presentation] 新開発LDFZ法により育成したLa_<2-x> Ba_xCuO_4(x～1/8)単結晶の物性 (2010)
  • Author(s): 伊藤利充、牛山智晴、富岡泰秀
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学中百舌鳥キャンパス
  • Year and Date: 2010-09-23
• [Presentation] Bulk synthesis and crystal growth of magnetic and superconducting functional materials (2010)
  • Author(s): T. Ito
  • Organizer: 12th International Conference on Modern Materials and Technologies
  • Place of Presentation: 12th International Conference on Modern Materials and Technologies
  • Year and Date: 2010-06-10
• [Presentation] Bulk synthesis and crystal growth of magnetic and superconducting functional materials (2010)
  • Author(s): T.Ito, Y.Yanagisawa, Y.Tomioka
  • Organizer: 12th International Conference on Modern Materials and Technologies (CIMTEC 2010)
  • Place of Presentation: Montecatini Terme, Italy
  • Year and Date: 2010-06-10
• [Remarks]
  • URL: http://staff.aist.go.jp/t.ito
• [Remarks] 伊藤利充のHP
  • URL: http://staff.aist.go.jp/t.ito
• [Remarks]
  • URL: http://staff.aist.go.jp/t.ito
• [Remarks]
  • URL: http://unit.aist.go.jp/nano-ele/ce-eng/top/index.html
• [Patent(Industrial Property Rights)] 単結晶育成装置および単結晶育成方法 (2010)
  • Inventor(s): 伊藤利充、他 4 名
  • Industrial Property Rights Holder: 産業技術総合研究所、他 2 法人
  • Filing Date: 2010-12-28
  • Overseas
• [Patent(Industrial Property Rights)] 単結晶育成装置および単結晶育成方法 (2010)
  • Inventor(s): 伊藤利充, 他
  • Industrial Property Rights Holder: 産業技術総合研究所, 他
  • Filing Date: 2010-12-28
  • Overseas