• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

フラストレートした磁性体におけるベリー位相とその展開

Publicly Offered Research

Project AreaNovel States of Matter Induced by Frustration
Project/Area Number 22014002
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionUniversity of Tsukuba

Principal Investigator

初貝 安弘  筑波大学, 数理物質系, 教授 (80218495)

Co-Investigator(Kenkyū-buntansha) 丸山 勲  大阪大学, 大学院・基礎工学研究科, 特任助教 (20422339)
濱本 雄治  筑波大学, 数理物質系, 助教 (30584734)
Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2011: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2010: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordsベリー位相 / 量子液体 / 幾何学的位相 / シングレット / カゴメ格子 / パイロクロア格子 / 秩序変数 / 量子相転移 / フラストレーション / スピン液体 / トポロジカル秩序 / Z_2ベリー位相 / パイロクロア / ダイマー / エネルギーギャップ
Research Abstract

フラストレーションを古典的な局所安定構造の非存在と考えるとき局所的な残留エントロピーは十分な量子効果で完全に解放され局所的な安定化構造が形成される。1次元系でのパイエルス不安定性に伴う二量体形成が、このエントロピー解放機構の典型例であり、2次元、3次元の種々のフラストレート系においても一般の多量体形成が実現することは実験ならびに数値的研究において確認されているところである。これらの一般の多量体は量子相において孤立することなく近傍の多量体と相互作用し全体として励起にギャップをもつ量子的にもつれ合った状態が構成される。この観点に立つとき、古典的なフラストレーションに伴う局所エントロピーは量子もつれとして量子系に埋め込まれるのであり、この埋め込まれた古典的な自由度は、バルクの量子的にもつれ合った状態においては、いわゆるエンタングルメントエントロピーとして隠れた実効的な局所自由度(エッジ状態)の形で顕在化する。逆に、このギャップのある量子系において境界にあらわれる局所自由度がバルクエッジ対応の一つの例として量子系を特徴付けるのである。ここでこの議論を逆にして量子もつれ相とは何らかの断熱過程により、孤立した局所的な量子的構造(多量体)の集合体にまで励起ギャップを開けたまま連続変形できるものと定義しよう。このように定義した量子もつれ相は、量子論の準位交差の一般論に従うと単一相となるが系が離散的対称操作の下で不変であるときにはトポロジカルに明確に分類される多様な物質相が存在し得て、その各相は量子化ベリー位相をトポロジカルな秩序変数として分類される。本研究では、ダイマリゼーションを伴う1次元の整数スピン鎖ならびに2次元直交ダイマー系、カゴメ格子、パイロクロア格子上の多量体化に伴う励起ギャップを持つDirac電子系それぞれに対して具体的なトポロジカルな秩序変数を定義しその有効性を確認した。

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (68 results)

All 2012 2011 2010 Other

All Journal Article (18 results) (of which Peer Reviewed: 17 results) Presentation (48 results) Remarks (2 results)

  • [Journal Article] Generalization of chiral symmetry for tilted Dirac cones2012

    • Author(s)
      T.Kawarabayashi, Y.Hatsugai, T.Morimoto, H.Aoki
    • Journal Title

      Int.J.Mod.Phys. : Conf.Ser.

      Volume: (未定)(出版予定)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Topologically protected Landau levels in bilayer graphene in finite electric fields2012

    • Author(s)
      Tohru Kawarabayashi, Yasuhiro Hatsugai, Hideo Aoki
    • Journal Title

      Phys.Rev.B

      Volume: 85 Issue: 16 Pages: 165410-165410

    • DOI

      10.1103/physrevb.85.165410

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Z_Q Topological Invariants for Polyacetylene, Kagome and Pyrochlore lattices2011

    • Author(s)
      Y.Hatsugai, I.Maruyama
    • Journal Title

      Euro Phys Letter

      Volume: 95 Issue: 2 Pages: 20003-20003

    • DOI

      10.1209/0295-5075/95/20003

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Z_2 topological number of local quantum clusters in the orthogonal dimer model2011

    • Author(s)
      I.Maruyama, S.Tanaya, M.Arikawa, Y.Hatsugai
    • Journal Title

      J.Phys. : Conf.Ser.

      Volume: 320 Pages: 012019-012019

    • DOI

      10.1088/1742-6596/320/1/012019

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Manipulation of the Dirac cones and the anomaly in the graphene related quantum Hall effect2011

    • Author(s)
      H.Watanabe, Y Hatsugai, H Aoki
    • Journal Title

      J.Phys. : Conf.Ser.

      Volume: 334 Pages: 012044-012044

    • DOI

      10.1088/1742-6596/334/1/012044

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Edge states in graphene quantum Hall system with bond vs potential disorder2011

    • Author(s)
      M.Arikawa, H.Aoki, Y.Hatsugai
    • Journal Title

      J.Phys. : Conf.Ser.

      Volume: 334 Pages: 012043-012043

    • DOI

      10.1088/1742-6596/334/1/012043

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical study of electronic structure under uniform magnetic field and quantized Hall conductance for multi-band tight-binding models2011

    • Author(s)
      M.Arai, Y.Hatsugai
    • Journal Title

      J.Phys. : Conf.Ser.

      Volume: 334 Pages: 12042-12042

    • DOI

      10.1088/1742-6596/334/1/012042

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Topological aspect of graphene physics2011

    • Author(s)
      Y.Hatsugai
    • Journal Title

      J.Phys. : Conf.Ser.

      Volume: 334(Invited) Pages: 012004-012004

    • DOI

      10.1088/1742-6596/334/1/012004

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wave packet dynamics in the spin torque transfer2011

    • Author(s)
      M.Arikawa, Y.Hatsugai, T.Endoh, K.Shiraishi
    • Journal Title

      J.Phys.Soc.Jpn.

      Volume: 81 Issue: 4 Pages: 044706-044706

    • DOI

      10.1143/jpsj.81.044706

    • NAID

      40019224343

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Topological aspect of grapheme physics2011

    • Author(s)
      Y.Hatsugai
    • Journal Title

      J.Phys.Conf.Ser.

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Edge states in graphene quantum Hall system with bond vs potential disorder2011

    • Author(s)
      M.Arikawa, H.Aoki, Y.Hatsugai
    • Journal Title

      J.Phys.Conf.Ser.

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Manipulation of the Dirac cones and the anomaly in the graphene related quantum Hall effect2011

    • Author(s)
      H.Watanabe, Y.Hatsugai, H.Aoki
    • Journal Title

      J.Phys.Conf.Ser.

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] トピックス グラフェンの魅力:新素材の可能性を越えて2011

    • Author(s)
      初貝安弘
    • Journal Title

      日本分光学会学会誌分光研究

      Volume: 60 Pages: 22-23

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous criticality in the quantum Hall transition at n=0 Landau level of graphene : The role of disorder preserving chiral symmetry2011

    • Author(s)
      T.Kawarabayashi, T.Morimoto, Y.Hatsugai, H.Aoki
    • Journal Title

      Phys.Rev.B

      Volume: 82 Pages: 195426-195426

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Half-integer contributions to the quantum Hall conductivity from single Dirac cones2011

    • Author(s)
      H.Watanabe, Y.Hatsugai, H.Aoki
    • Journal Title

      Phys.Rev.B (RC)

      Volume: 82 Pages: 241403-241403

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] グラフェンの物理2010

    • Author(s)
      初貝安弘、青木秀夫
    • Journal Title

      固体物理

      Volume: 45 Pages: 457-476

    • NAID

      40017361585

    • Related Report
      2010 Annual Research Report
  • [Journal Article] Scattering of Dirac Fermions with Doubling2010

    • Author(s)
      Y.Hatsugai
    • Journal Title

      JPSJ Online-News and Comments

      Volume: September 10

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Topological quantum phase transition in the BEC-BCS crossover2010

    • Author(s)
      M.Arikawa, I.Maruyama, Y.Hatsugai
    • Journal Title

      Phys.Rev.B

      Volume: 82 Pages: 73105-73105

    • NAID

      120007137941

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Short-range entangled系におけるZQ量子化ベリー位相の応用2012

    • Author(s)
      初貝安弘, 丸山勲
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] フェルミオン・ダブリングを伴わないディラック電子のランダウ準位に対するランダムネスの効果2012

    • Author(s)
      本田貴大, 初貝安弘, 青木秀夫, 河原林透
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] 半導体ナノ構造における多電子波束ダイナミクスの印加電圧依存性2012

    • Author(s)
      塩川太郎, 高田幸宏, 尹永択, 岩田潤一, 小鍋哲, 有川晃弘, 村口正和, 遠藤哲郎, 初貝安弘, 白石賢二
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] 2次元パイロクロア格子におけるクロスダイマー相と量子化ベリー位相2012

    • Author(s)
      棚谷翔, 丸山勲, 初貝安弘
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] 2次元半導体ナノ構造における多電子波束ダイナミクスの検討2012

    • Author(s)
      高田幸宏, 塩川太郎, 尹永択, 岩田潤一, 小鍋哲, 有川晃弘, 村口正和, 遠藤哲郎, 初貝安弘, 白石賢二
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電子間相互作用による磁場下グラフェンの局在状態2012

    • Author(s)
      濱本雄治, 青木秀夫, 初貝安弘
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電場中の2層グラフェンにおけるゼロエネルギーランダウ準位のトポロジカルな安定性2012

    • Author(s)
      河原林透, 初貝安弘, 青木秀夫
    • Organizer
      日本物理学会2012年年会
    • Place of Presentation
      関西学院大学(神戸)
    • Year and Date
      2012-03-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] Symmetry, Dirac cones and Berry connections for frustrated fermions2011

    • Author(s)
      Y.Hatsugai
    • Organizer
      26th Nishinomiya-Yukawa Memorial Internation al Workshop "Novel Quantum States in Condensed Matter 2011 (NQS2011)"
    • Place of Presentation
      京都大学基礎物理学研究所(京都)(Invited)
    • Year and Date
      2011-11-17
    • Related Report
      2011 Annual Research Report
  • [Presentation] Quantized Berry phases for characterization of short range entangled states in d-dimensions2011

    • Author(s)
      Y.Hatsugai
    • Organizer
      Kavli Institute for Theoretical Physicsprogram : Topological Insulators and Superconductors
    • Place of Presentation
      KITP-UCSB, Santa Barbara, USA(Invited)
    • Year and Date
      2011-11-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] 対称性が保護するベリー位相の量子化とその電子系での応用2011

    • Author(s)
      初貝安弘, 丸山勲
    • Organizer
      日本物理学会2011年秋季大会(物性)
    • Place of Presentation
      富山大学、富山市
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] 磁場中グラフェンのカイラル対称性と多体状態の数値的研究2011

    • Author(s)
      濱本雄治, 青木秀夫, 初貝安弘
    • Organizer
      日本物理学会2011年秋季大会(物性)
    • Place of Presentation
      富山大学、富山市
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] 半導体中での波束ダイナミクスの印加電圧依存性2011

    • Author(s)
      高田幸宏, 尹永択, 塩川太郎, 岩田潤一, 小鍋哲, 有川晃弘, 村口正和, 遠藤哲郎, 初貝安弘, 白石賢二
    • Organizer
      日本物理学会2011年秋季大会(物性)
    • Place of Presentation
      富山大学、富山市
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] 傾いたディラックコーンにおけるゼロモードのトポロジカルな安定性---カイラル対称性の非エルミートな一般化---2011

    • Author(s)
      河原林透, 初貝安弘, 森本高裕, 青木秀夫
    • Organizer
      日本物理学会2011年秋季大会(物性)
    • Place of Presentation
      富山大学、富山市
    • Year and Date
      2011-09-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] ノートリーフォック近似によるナノ構造中の電子波束ダイナミックス2011

    • Author(s)
      高田幸宏, 尹永択, 塩川太郎, 岩田潤一, 小鍋哲, 有川晃弘, 村口正和, 遠藤哲郎, 初貝安弘, 白石賢二
    • Organizer
      日本物理学会2011年秋季大会(物性)
    • Place of Presentation
      富山大学、富山市
    • Year and Date
      2011-09-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] Suzuki-Trotter法による電子波束ダイナミックスの多体効果2011

    • Author(s)
      尹永択, 塩川太郎, 高田幸宏, 岩田潤一, 小鍋哲, 有川晃弘, 村口正和, 遠藤哲郎, 初貝安弘, 白石賢二
    • Organizer
      日本物理学会2011年秋季大会(物性)
    • Place of Presentation
      富山大学、富山市
    • Year and Date
      2011-09-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] グラフェンにおけるカイラル対称性と電子相関2011

    • Author(s)
      初貝安弘
    • Organizer
      理論核領域,素粒子領域合同シンポジウム強相関物理の新展開18pSJ-6日本物理学会2011年秋季大会(素粒子原子核)
    • Place of Presentation
      弘前大学,弘前市(招待講演)
    • Year and Date
      2011-09-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] 二次元パイロクロア格子上のS=1/2ハイゼンベルク模型の基底状態とZ_2ベリー位相を用いた相分類2011

    • Author(s)
      棚谷翔, 丸山勲, 有川晃弘, 初貝安弘
    • Organizer
      ポリスケール大学間連携研究会
    • Place of Presentation
      東京理科大学長万部キャンパス,長万部町
    • Year and Date
      2011-09-04
    • Related Report
      2011 Annual Research Report
  • [Presentation] グラフェンの特異な物性とカイラル対称性2011

    • Author(s)
      初貝安弘
    • Organizer
      京都大学基礎物理学研究所研究会「熱場の量子論とその応用」
    • Place of Presentation
      京都大学基礎物理学研究所、京都(招待講演)
    • Year and Date
      2011-08-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] 時間反転対称性とトポロジカル絶縁体のエッジ状態:バルクエッジ対応の物理2011

    • Author(s)
      初貝安弘
    • Organizer
      平成23年度第10回飯綱・サイエンスサマー道場
    • Place of Presentation
      ホテルアルカディア飯綱高原、長野(招待講演)
    • Year and Date
      2011-08-17
    • Related Report
      2011 Annual Research Report
  • [Presentation] Chiral Symmetry and, Electron-Electron Interaction in Many-Body Gap Formation in Graphene2011

    • Author(s)
      Y.Hamamoto, Y.Hatsugai, H.Aoki
    • Organizer
      26th International Conference on Low Temperature Physics (LT26)
    • Place of Presentation
      The Beijing International Convention Center, China
    • Year and Date
      2011-08-11
    • Related Report
      2011 Annual Research Report
  • [Presentation] Use of Berry connections in condensed matter physics and the bulk-edge correspondence2011

    • Author(s)
      Y.Hatsugai
    • Organizer
      Workshop on Emergence in Field Theory
    • Place of Presentation
      Nanyang Executive center, Nanyang Technology University, Singapore(Invited)
    • Year and Date
      2011-08-06
    • Related Report
      2011 Annual Research Report
  • [Presentation] Exact ground states of v=1/2 states in graphene2011

    • Author(s)
      Y.Hamamoto, Y.Hatsugai, H.Aoki
    • Organizer
      The 19th international conference on Electronic Properties of Two-Dimensional Systems (EP2DS19)
    • Place of Presentation
      Florida State University Conference Center, USA
    • Year and Date
      2011-07-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] Symmetry protected quantization of Berry phases and applications2011

    • Author(s)
      Y.Hatsugai
    • Organizer
      Workshop and School on Topological Aspects of Condensed Matter Physics
    • Place of Presentation
      International Center for Theoretical Physics (ICTP) Trieste, Italy(Invited)
    • Year and Date
      2011-06-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] Electron correlation and chiral symmetry in half-filled graphene in magnetic fields2011

    • Author(s)
      Y.Hamamoto, Y, Hatsugai, H.Aoki
    • Organizer
      Graphene Week 2011 : Fundamental Science of Graphene and Applications of Graphene-Based Devices
    • Place of Presentation
      Obergurgl, Austria
    • Year and Date
      2011-04-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] Robustness of zero-modes and generalised chiral symmetry for tilted Dirac cones with disorder2011

    • Author(s)
      T.Kawarabayashi, Y.Hatsugai, T.Morimoto, H.Aoki
    • Organizer
      Graphene Week 2011 : Fundamental Science of Graphene and Applications of Graphene-Based Devices
    • Place of Presentation
      Obergurgl, Austria(Selected oral presentation)
    • Year and Date
      2011-04-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] Dirac Fermions with electron-electron interaction in Graphene2011

    • Author(s)
      Y.Hatsugai
    • Organizer
      ISIMS-2011 The Third International Symposium on Interdisciplinary Materials Science
    • Place of Presentation
      Epochal Tsukuba(招待講演)
    • Year and Date
      2011-03-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Z_2 topological number of local quantum clusters in the orthogonal dimer model2011

    • Author(s)
      Isao Maruyama, Sho Tanaya, Mitsuhiro Arikawa, Yasuhiro Hatsugai
    • Organizer
      International Conference on Frustration in Condensed Matter (ICFCM)
    • Place of Presentation
      Sendai International Center, Sendai, Japan
    • Year and Date
      2011-01-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] Wave packet dynamics in the spin torque transfer2010

    • Author(s)
      有川晃弘, 初貝安弘, 白石賢二
    • Organizer
      第15回 半導体スピン工学の基礎と応用 PASPS-15
    • Place of Presentation
      筑波大学計算科学センター
    • Year and Date
      2010-12-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] More than new material, Speaker in the session "Advances in Graphene-Based Science and Application"2010

    • Author(s)
      Yasuhiro Hatsugai
    • Organizer
      12th Japanese-American Frontiers of Science (JAFoS) Symposium
    • Place of Presentation
      Kazusa Arc, Chiba, Japan(スピーカー、招待講演)
    • Year and Date
      2010-12-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] 二次元パイロクロア格子上のS=1/2ハイゼンベルグ模型に対するZ_2ベリー位相を用いた相同定2010

    • Author(s)
      棚谷翔、有川晃弘、丸山勲、初貝安弘
    • Organizer
      第4回 物性科学領域横断研究会
    • Place of Presentation
      東京大学武田先端知ビル5F武田ホール
    • Year and Date
      2010-11-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] グラフェンにおけるトポロジカルな効果とバルクエッジ対応2010

    • Author(s)
      初貝安弘
    • Organizer
      名古屋大学大学院理学研究科物理学教室談話会
    • Place of Presentation
      名古屋大学大学院理学研究科物理学教室(招待講演)
    • Year and Date
      2010-11-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] S=1/2 2次元パイロクロア格子におけるZ2ベリー位相2010

    • Author(s)
      棚谷翔, 有川晃弘, 丸山勲, 初貝安弘
    • Organizer
      日本物理学会 2010年秋季大会(25aTE-12)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] 不規則2層グラフェンのランダウ準位におけるカイラル対称性の効果2010

    • Author(s)
      河原林透, 初貝安弘, 青木秀夫
    • Organizer
      日本物理学会 2010年秋季大会(24pRA-6)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] 開いた軌道の磁気的破壊と量子ホール効果2010

    • Author(s)
      新井正男, 初貝安弘
    • Organizer
      日本物理学会 2010年秋季大会(24aTE-6)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] ベリー位相のZ_Q量子化2010

    • Author(s)
      初貝安弘, 丸山勲
    • Organizer
      日本物理学会 2010年秋季大会(23pTE-6)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] グラフェン関連模型における半整数量子ホール効果への分解2010

    • Author(s)
      渡辺悠樹, 初貝安弘, 青木秀夫
    • Organizer
      日本物理学会 2010年秋季大会(23aXA-10)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] グラフェン端状態のカイラル対称性の破れに対する安定性2010

    • Author(s)
      有川晃弘, 青木秀夫, 初貝安弘
    • Organizer
      日本物理学会 2010年秋季大会(23aXA-7)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] Topological aspects of graphene physics2010

    • Author(s)
      Y.Hatsugai
    • Organizer
      The 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology (HMF-19)
    • Place of Presentation
      Fukuoka International Congress Center(招待講演)
    • Year and Date
      2010-08-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] Edge states in graphene quantum Hall system with bond vs potential disorder2010

    • Author(s)
      Mitsuhiro Arikawa, Hideo Aoki, Yasuhiro Hatsugai
    • Organizer
      The 19th International Conference on the Application of High Magnetic Fields in Semiconductor Physics and Nanotechnology (HMF-19)
    • Place of Presentation
      Fukuoka International Congress Center
    • Year and Date
      2010-08-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] Topological characterization of 2D orthogonal dimer model2010

    • Author(s)
      S.Tanaya, I.Maruyama, M.Arikawa, Y.Hatsugai
    • Organizer
      The international conference Highly Frustrated Magnetism 2010 (HFM 2010)
    • Place of Presentation
      The Homewood campus of the Johns Hopkins University, USA
    • Year and Date
      2010-08-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] Entanglement entropy of the bond order phase in graphene in magnetic fields2010

    • Author(s)
      Mitsuhiro Arikawa, Hideo Aoki, Yasuhiro Hatsugai
    • Organizer
      30th International Conference on the Physics of Semiconductors (ICPS 2010)
    • Place of Presentation
      COEX, Seoul, Korea
    • Year and Date
      2010-07-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Robustness of the edge states in graphene quantum Hall system : does the chiral symmetry degraded by t' matter?2010

    • Author(s)
      Mitsuhiro Arikawa, Hideo Aoki, Yasuhiro Hatsugai
    • Organizer
      30th International Conference on the Physics of Semiconductors (ICPS 2010)
    • Place of Presentation
      COEX, Seoul, Korea
    • Year and Date
      2010-07-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] Z_2 Berry phase in 2D orthogonal dimer model2010

    • Author(s)
      Sho Tanaya, Isao Maruyama, Mitsuhiro Arikawa, Yasuhiro Hatsugai
    • Organizer
      XXIV IUPAP International Conference on Statistical Physics (StatPhys24)
    • Place of Presentation
      Convention Centre, Cairns, Queensland, Australia
    • Year and Date
      2010-07-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Anomalous Criticality at the n=0 Landau Level of Graphene : Manifestation of the Chiral Symmetry2010

    • Author(s)
      T.Kawarabayashi, Y.Hatsugai, H.Aoki
    • Organizer
      International Conference on Science and Technology of Synthetic Metals 2010 (ICSM 2010) : 7D-11
    • Place of Presentation
      Kyoto International Conference Center, Kyoto, JAPAN
    • Year and Date
      2010-07-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] Edge States of Graphene in Magnetic Fields : Effects of Second-Neighbor Hopping2010

    • Author(s)
      M.Arikawa, Y.Hatsugai, H.Aoki
    • Organizer
      International Conference on Science and Technology of Synthetic Metals 2010 (LCSM 2010) : 7D-04
    • Place of Presentation
      京都国際会議会館
    • Year and Date
      2010-07-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] Dirac fermions, Chern numbers and bulk-edge correspondence in graphene with randomness"2010

    • Author(s)
      Y.Hatsugai
    • Organizer
      Localization Phenomena in Novel Phases of Condensed Matter" Abdus Salam ICTP, Trieste, Italy from 17-23 May 2010
    • Place of Presentation
      Abdus Salam ICTP, Trieste, Italy(招待講演)
    • Year and Date
      2010-05-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Chiral Symmetry in Graphene2010

    • Author(s)
      Y.Hatsugai, T.Kawarabayashi, T.Morimoto, H.Aoki (presented by Kawarabayashi)
    • Organizer
      Graphene Week 2010
    • Place of Presentation
      College Park, Maryland, USA
    • Year and Date
      2010-04-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] Anomalous Quantum Hall effect in graphene and organic-conductors : topological number and semi-classical quantization2010

    • Author(s)
      M.Arai, Y.Hatsugai
    • Organizer
      Graphene Week 2010
    • Place of Presentation
      College Park, Maryland, USA
    • Year and Date
      2010-04-21
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://rhodia.ph.tsukuba.ac.jp/~hatsugai

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://rhodia.ph.tsukuba.ac.jp/~hatsugai

    • Related Report
      2010 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2018-03-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi