vortex states in high-T_c superconductors with artificial antidot lattice

• Project/Area Number: 21560024
• 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 for Materials Science
• Principal Investigator: OOI Shuuichi 独立行政法人物質・材料研究機構, 超伝導物性ユニット, 主任研究員 (10354292)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2011: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
• Keywords: 銅酸化物超伝導体 / アンチドット格子 / 磁束量子 / マッチング効果 / 渦糸フロー / 銅酸化物高温超伝導体 / 磁束線フロー / 固有ジョセフソン接合

Research Abstract

We have systematically investigated the influence of artificial micro-holes on the vortex system using high-quality single-crystal thin films and the intrinsic Josephson junction of Bi_2Sr_2CaCu_2O_<8+y>. As a result, several interesting properties are revealed : the vortex phase diagram with the micro-holes array, relation between the geometrical parameters of micro-holes array and the vortex states, and change of the c-axis coupling of vortices in the matching effect.

Research Products

• [Journal Article] Antidot diameter dependence of matching effect in Bi_2Sr_2CaCu_2O_<8+y> with antidot array (2011)
  • Author(s): Shuuichi Ooi, Takashi Mochiku, Kazuto Hirata
  • Journal Title: Physica Volume: C471 Pages: 804-807
  • Peer Reviewed
• [Journal Article] Antidot diameter dependence of matching effect in Bi2Sr2CaCu2O8+y with antidot array (2011)
  • Author(s): S.Ooi, T.Mochiku, K.Hirata
  • Journal Title: PHYSICA C SUPERCONDUCTIVITY AND ITS APPLICATIONS Volume: 471 Issue: 21-22 Pages: 804-807
  • DOI: 10.1016/j.physc.2011.05.060
  • Peer Reviewed
• [Journal Article] Influence of flat milling on vortex matching effect in Bi_2Sr_2CaCu_2O_<8+y> with antidot array (2010)
  • Author(s): Shuuichi Ooi, Takashi Mochiku, Kazuto Hirata
  • Journal Title: Physica Volume: C470 Pages: 1115-1117
  • Peer Reviewed
• [Journal Article] Fractional matching effect of vortices in Bi_2Sr_2CaCu_2O_<8+y> with square lattice of antidots (2010)
  • Author(s): Shuuichi Ooi, Takashi. Mochiku, Kazuto. Hirata
  • Journal Title: Physica Volume: C470
  • Peer Reviewed
• [Journal Article] Influence of flat milling on vortex matching effect in Bi2Sr2CaCu2O8+y with antidot array (2010)
  • Author(s): S.Ooi, T.Mochiku, K.Hirata
  • Journal Title: PHYSICA C SUPERCONDUCTIVITY AND ITS APPLICATIONS Volume: 470 Pages: 1115-1117
  • Peer Reviewed
• [Journal Article] Fractional matching effect of vortices in Bi2Sr2CaCu2O8py with square lattice of antidots (2010)
  • Author(s): S.Ooi, T.Mochiku, K.Hirata
  • Journal Title: PHYSICA C SUPERCONDUCTIVITY AND ITS APPLICATIONS Volume: 470
  • Peer Reviewed
• [Journal Article] Fractional matching effect of vortices in Bi2Sr2CaCu2O8+y with squarelattice of antidots (2010)
  • Author(s): S.Ooi, T.Mochiku, K.Hitara
  • Journal Title: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS (In press)
  • Peer Reviewed
• [Journal Article] Fractional matching effect in single-crystal films of Bi_2Sr_2CaCu_2O_<8+y> with antidot lattice (2009)
  • Author(s): Shuuichi Ooi, Takashi. Mochiku, Kazuto. Hirata
  • Journal Title: Physica Volume: C469 Pages: 1113-1115
  • Peer Reviewed
• [Journal Article] Fractional matching effect in single-crystal films of Bi2Sr2CaCu2O8+y with antidot lattice (2009)
  • Author(s): S.Ooi, T.Mochiku, K.Hitara
  • Journal Title: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 469 Pages: 1113-1115
  • Peer Reviewed
• [Journal Article] (2009)
  • Author(s): 福山秀敏、秋光純, 他45名
  • Journal Title: 超伝導ハンドブック(「微細構造超伝導体中の渦糸」セクション執筆)(朝倉書店)
• [Presentation] c軸輸送特性でみた微細孔格子をもつBi_2Sr_2CaCu_2O_<8+y>の渦糸状態 (2012)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県西宮市)
  • Year and Date: 2012-03-27
• [Presentation] c軸輸送特性でみる微細孔格子をもつBi_2Sr_2CaCu_2O_<8+y>の渦糸状態 (2011)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 第19回超伝導渦糸物理国内会議
  • Place of Presentation: 物質・材料研究機構(つくば市)
  • Year and Date: 2011-12-08
• [Presentation] c軸輸送特性でみる微細孔格子をもつBi2Sr2CaCu2O8+yの渦糸状態 (2011)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 第19回超伝導渦糸物理国内会議
  • Place of Presentation: 物質・材料研究機構(つくば市)
  • Year and Date: 2011-12-08
• [Presentation] c軸臨界電流でみた微細孔格子をもつBi2212の渦糸状態 (2011)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学(富山市)
  • Year and Date: 2011-09-24
• [Presentation] Vortex phase diagram of Bi_2Sr_2CaCu_2O_<8+y> with various antidot lattices (2011)
  • Author(s): Shuuichi Ooi, Takashi Mochiku, Kazuto Hirata
  • Organizer: The 13th international workshop on vortex matter in superconductors
  • Place of Presentation: Millennium Knickerbocker Hotel Chicago(Chicago USA)
  • Year and Date: 2011-08-02
• [Presentation] Vortex phase diagram of Bi2Sr2CaCu2O8+y with various antidot lattices (2011)
  • Author(s): Shuuichi Ooi, Takashi Mochiku, Kazuto Hirata
  • Organizer: The 13th international workshop on vortex matter in superconductors
  • Place of Presentation: Millennium Knickerbocker Hotel Chicago, Chicago, USA(招待講演)
  • Year and Date: 2011-08-02
• [Presentation] アンチドット格子を持つBi2212固有ジョセフソン接合 (2011)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会第66回年次大会
  • Year and Date: 2011-03-28
• [Presentation] 様々な微細孔格子を導入したBi2212における渦糸系の相転移 (2010)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 第18回渦糸国内研究会
  • Place of Presentation: 日本原子力研究開発機構(東京都)
  • Year and Date: 2010-12-01
• [Presentation] 微細孔格子をもつBi2212の渦糸相図における一次相転移の出現条件 (2010)
  • Author(s): 大井修一、茂筑高士、平田和人
  • 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: 2010-09-26
• [Presentation] 微細孔格子を導入したBi2Sr2CaCu2O8+yにおける渦糸相図の孔径依存性 (2010)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会 第65回年次大会
  • Place of Presentation: 岡山大学(岡山市)
  • Year and Date: 2010-03-23
• [Presentation] 微細孔格子をもつ高温超伝導体の渦糸状態 (2010)
  • Author(s): 大井修一
  • Organizer: 日本物理学会 第65回年次大会 シンポジウム
  • Place of Presentation: 岡山大学(岡山市)
  • Year and Date: 2010-03-21
• [Presentation] 微細孔格子をもつBi_2Sr_2CaCu_2O_<8+y>の渦糸状態-孔径依存性- (2009)
  • Author(s): 大井修一
  • Organizer: 第17回渦糸物理国内会
  • Place of Presentation: 大阪府立大学(大阪市)
  • Year and Date: 2009-12-01
• [Presentation] 微細孔格子をもつBi2Sr2CaCu2O8+yの渦糸状態-孔径依存性- (2009)
  • Author(s): 大井修一
  • Organizer: 第17回渦糸物理国内会
  • Place of Presentation: 大阪府立大学(大阪市)
  • Year and Date: 2009-12-01
• [Presentation] Influence of flat milling on vortex matching effect in Bi_2Sr_2CaCu_2O_<8+y> with antidot array (2009)
  • Author(s): Shuuichi Ooi, Takashi Mochiku, Kazuto Hirata
  • Organizer: International Symposium on Superconductivity
  • Place of Presentation: Epochal Tsukuba(つくば市)
  • Year and Date: 2009-11-04
• [Presentation] Influence of flat milling on vortex matching effect in Bi2Sr2CaCu2O8+y with antidot array (2009)
  • Author(s): Ooi S, Mochiku T, Hirata K
  • Organizer: International Symposium on Superconductivity
  • Place of Presentation: Epochal Tsukuba(つくば市)
  • Year and Date: 2009-11-04
• [Presentation] アンチドット格子導入によるBi_2Sr_2CaCu_2O_<8+y>における渦糸相図の変化 (2009)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学(熊本市)
  • Year and Date: 2009-09-28
• [Presentation] アンチドット格子導入によるBi2Sr2CaCu2O8+yにおける渦糸相図の変化 (2009)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会 2009年秋季大会
  • Place of Presentation: 熊本大学(熊本市)
  • Year and Date: 2009-09-28
• [Presentation] Vortex phase diagram of Bi_2Sr_2CaCu_2O_<8+y> with antidot lattice (2009)
  • Author(s): Shuuichi Ooi
  • Organizer: 12th International Workshop on Vortex Matter in Superconductors
  • Place of Presentation: 東京大学山中湖セミナーハウス(山梨県)
  • Year and Date: 2009-09-15
• [Presentation] Vortex phase diagram of Bi2Sr2CaCu2O8+y with antidot lattice (2009)
  • Author(s): Ooi S
  • Organizer: 12th International Workshop on Vortex Matter in Superconductors
  • Place of Presentation: 東京大学山中湖セミナーハウス(山梨県)
  • Year and Date: 2009-09-15
• [Presentation] Fractional Matching Effect of Vortices in Bi_2Sr_2CaCu_2O_<8+y> with Square Lattice of Antidots (2009)
  • Author(s): Shuuichi Ooi
  • Organizer: 9th MMS international conference
  • Place of Presentation: 京王プラザホテル(東京都)
  • Year and Date: 2009-09-10
• [Presentation] Fractional Matching Effect of Vortices in Bi2Sr2CaCu2O8+y with Square Lattice of Antidots (2009)
  • Author(s): Ooi S
  • Organizer: 9th MMS international conference
  • Place of Presentation: 京王プラザホテル(東京都)
  • Year and Date: 2009-09-10
• [Presentation] 微細孔格子を導入したBi_2Sr_2CaCu_2O_<8+y>における渦糸相図の孔径依存性 (2009)
  • Author(s): 大井修一、茂筑高士、平田和人
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学(岡山市)
  • Year and Date: 2009-03-23
• [Presentation] 微細孔格子をもつ高温超伝導体の渦糸状態 (2009)
  • Author(s): 大井修一
  • Organizer: 日本物理学会第65回年次大会シンポジウム
  • Place of Presentation: 岡山大学(岡山市)
  • Year and Date: 2009-03-21
• [Book] 超伝導ハンドブック「微細構造超伝導体中の渦糸」 (2009)
  • Author(s): 福山秀敏、秋光純, 他45名
  • Publisher: 朝倉書店