How magnetism will change when the dimension of sample changes

• Project/Area Number: 23540432
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Ehime University
• Principal Investigator: NAITO Toshio 愛媛大学, 理工学研究科, 教授 (20227713)
• Co-Investigator(Renkei-kenkyūsha): MAYAMA Hiroyuki 北海道大学, 電子科学研究所, 助教 (70360948)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 物性基礎論 / フラクタル / フラクタル次元 / アルキルケテンダイマー / ネール温度 / 超伝導特性 / 格子欠陥 / 転移温度 / 磁気秩序 / 酸化コバルト / 反強磁性体

Research Abstract

The purpose of this research project is to clarify the relationship between fractal dimension (D) and ordering in cooperative phenomena such as magnetic and superconducting transitions by presenting experimental data. The novelty of this research lies in the realization of control of D of given samples and elucidation of their electronic properties. For three years the study has achieved most of the purposes. The followings have been clarified by measurements of the physical properties of samples with various farctal dimensions; the relationship between Neel temperature of CoO and its fractal dimension, and that between critical current density of high-T_C copper oxide superconductors and its fractal dimension. These results are published in scientific journals after patent was applied.

Research Products

• [Journal Article] Magnetic Ordering of Spin Systems Having Fractal Dimensions Experimental Study (2013)
  • Author(s): T. Naito, H. Yamamoto, K. Okuda. K. Konishi, H. Mayama, D. Yamaguchi, S. Koizumi, K. Kubo, T. Nakamura, T. Yamada, H. Kitagawa, and S. Hayami
  • Journal Title: Eur. Phys. J. B Volume: 86 Issue: 10 Pages: 410-410
  • DOI: 10.1140/epjb/e2013-40353-3
  • Peer Reviewed
• [Journal Article] What Happens at the Interface between TTF and TCNQ Crystals (TTF = Tetrathiafulvalene and TCNQ = 7,7,8,8-Tetracyanoquinodimethane) (2012)
  • Author(s): Y. Takahashi, K. Hayakawa, T. Naito, T. Inabe
  • Journal Title: J. Phys. Chem. C Volume: 116 Pages: 700-703
  • Peer Reviewed
• [Journal Article] Structural Characteristics in a Stable Metallic ET Salt with Unusually High Oxidation State (ET = bis(ethylenedithio)tetrathiafulvalene) (2012)
  • Author(s): H. Minemawari, Judy Fe F. Jose, Y. Takahashi, T. Naito and T. Inabe
  • Journal Title: Bull. Chem. Soc. Jpn Volume: 85 Pages: 335-340
  • NAID: 10030219247
  • Peer Reviewed
• [Journal Article] Charge Distribution in the Surface BEDT-TTF Layer of alpha-(BEDT-TTF) 2I3 at Room Temperature with Scanning Tunneling Microscopy (2012)
  • Author(s): E. Mori, H. Usui, H. Sakamoto, K. Mizoguchi, and T. Naito
  • Journal Title: J. Phys. Soc. Jpn Volume: 81
  • Peer Reviewed
• [Journal Article] Carrier dynamics in a series of organic magnetic superconductors (2012)
  • Author(s): T. Naito, S. Matsuo, T. Inabe, Y. Toda
  • Journal Title: J. Phys. Chem. C Volume: 116 Pages: 2588-2593
  • Peer Reviewed
• [Journal Article] Local Spin Susceptibility of alpha-D2I3 (D = bis(ethylendithio)tetraselenafulvalene (BETS) and bis(ethylendithio)dithiadiselenafulvalene (BEDT-STF)) Studied by 77Se NMR. (2011)
  • Author(s): K. Hiraki, S. Harada, K. Arai, Y. Takano, T. Takahashi, N. Tajima, R. Kato, T. Naito
  • Journal Title: J. Phys. Soc. Jpn. Volume: 80
  • Peer Reviewed
• [Journal Article] Growth of Nanocrystals in a Single Crystal of Different Materials: A Way of Giving Function to Molecular Crystals. (2011)
  • Author(s): T. Naito, A. Kakizaki, T. Inabe, R. Sakai, E. Nishibori, H. Sawa
  • Journal Title: Cryst. Growth & Design Volume: 11 Pages: 501-506
  • Peer Reviewed
• [Journal Article] Stable pai-pai dependent electron conduction band of TPP[M(Pc)L2]2 molecular conductors (TPP = tetraphenylphosphonium;M = Co, Fe; Pc = phthalocyaninato; L = CN, Cl, Br) (2011)
  • Author(s): Derrick Ethelbhert C. Yu, Masaki Matsuda, Hiroyuki Tajima, Toshio Naito, Tamotsu Inabe
  • Journal Title: Dalton Trans. Volume: 40 Pages: 2283-2288
  • Peer Reviewed
• [Journal Article] Charge-transport in tin-iodide perovskite CH3NH3SnI3: origin of high conductivity (2011)
  • Author(s): Yukari Takahashi, Rena Obara, Zheng-Zhong Lin, Yukihiro Takahashi, Toshio Naito, Tamotsu Inabe, Shoji Ishibashi, Kiyoyuki Terakura
  • Journal Title: Dalton Trans. Volume: 40 Pages: 5563-5568
  • Peer Reviewed
• [Journal Article] Time-Resolved Photoresponse Measurements of the Electrical Conductivity of the Quasi-Two-Dimensional Organic Superconductor β-(BEDT-TTF)2I3 Using a Nanosecond Laser Pulse (2011)
  • Author(s): T. Iimori, F. Sabeth, T. Naito, N. Ohta
  • Journal Title: J. Phys. Chem. C Volume: 115 Pages: 23998-24003
  • NAID: 120003660595
  • Peer Reviewed
• [Journal Article] Femtosecond Carrier Relaxation Dynamics and Photoinduced Phase Separation in κ-(BEDT-TTF)2Cu[N(CN)2]X (X=Br,Cl) (2011)
  • Author(s): Y. Toda, T. Mertelj, T. Naito, and D. Mihailovic
  • Journal Title: Phys. Rev. Lett. Volume: 107
  • Peer Reviewed
• [Presentation] 電荷移動錯体結晶表面に成長するナノサイズ結晶(1) (2012)
  • Author(s): 高橋 幸裕・早川 渓・中川 裕貴・長谷川 裕之・稲辺 保・内藤 俊雄
  • Organizer: 日本化学会第９２春季年会
  • Place of Presentation: 慶応大学日吉キャンパス
• [Presentation] 電荷移動錯体結晶表面に成長するナノサイズ結晶(2) (2012)
  • Author(s): 中川 裕貴・高橋 幸裕・長谷川 裕之・稲辺 保・内藤 俊雄
  • Organizer: 日本化学会第９２春季年会
  • Place of Presentation: 慶応大学日吉キャンパス
• [Presentation] 有機超伝導体beta-(BEDT-TTF)2I3の光励起ダイナミクスとその同位体効果 (2012)
  • Author(s): 飯森 俊文，Sabeth Farzana, 内藤 俊雄，太田 信廣
  • Organizer: 日本化学会第９２春季年会
  • Place of Presentation: 慶応大学日吉キャンパス
• [Presentation] 光応答性が期待される分子性伝導体の構造と物性 (2012)
  • Author(s): 内藤 俊雄，烏谷 知明，森 重樹, 小原 敬士, 小西 健介, 高野 崇廣，高橋 幸裕，稲辺 保
  • Organizer: 日本化学会第９２春季年会
  • Place of Presentation: 慶応大学日吉キャンパス
• [Presentation] 接触型ドーピングを用いた分子性結晶界面エレクトロニクス (2012)
  • Author(s): 中島悠希，横倉聖也，早川 渓，高橋幸裕，長谷川裕之，稲辺保，内藤俊雄
  • Organizer: 日本化学会第９２春季年会
  • Place of Presentation: 慶応大学日吉キャンパス
• [Presentation] 鉄フタロシアニン化合物における磁場誘起転移 (2012)
  • Author(s): 中西成一郎，瀧川 仁，松田真生，花咲徳亮，田島裕之，内藤俊雄，稲辺保
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] ゼロギャップ伝導体alpha-(BEDT-TTF)2I3の熱起電力２ (2012)
  • Author(s): 北村竜一，加藤礼三，田村雅史，内藤俊雄，田嶋尚也，西尾豊，梶田晃示
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
• [Presentation] Crystal Structure and Physical Properties of meso-Substituted Porphyrin Charge-Transfer Complexes (2011)
  • Author(s): Jose, J. F. F., Y. Takahashi, I. Inabe，T. Naito
  • Organizer: 日本化学会北海道支部2011年夏季研究発表会
  • Place of Presentation: 室蘭工業大学
• [Presentation] 電荷移動錯体結晶表面に成長するナノサイズ結晶 (2011)
  • Author(s): 中川裕貴, 室井俊介, 高橋幸裕, 稲辺保, 内藤俊雄
  • Organizer: 日本化学会北海道支部2011年夏季研究発表会
  • Place of Presentation: 室蘭工業大学
• [Presentation] (Pb, Sn)-I系層状ペロブスカイトのFET特性 (2011)
  • Author(s): 工藤勇, 高橋由香利, 高橋幸裕, 内藤俊雄, 稲辺保
  • Organizer: 日本化学会北海道支部2011年夏季研究発表会
  • Place of Presentation: 室蘭工業大学
• [Presentation] ２つの相転移を有する電荷移動錯体の整流特性 (2011)
  • Author(s): 横倉聖也, 高橋幸裕, 稲辺保, 内藤俊雄
  • Organizer: 日本化学会北海道支部2011年夏季研究発表会
  • Place of Presentation: 室蘭工業大学
• [Presentation] Rectification Device of a CT Complex with Asymmetric Electrodes (2011)
  • Author(s): S. YOKOKURA, Y. TAKAHASHI, T. NAITO, T. INABE
  • Organizer: International Conference on Materials for Advanced Technologies（ICMAT2011）
  • Place of Presentation: Suntec, Singapore
• [Presentation] Transport Characteristics of Carrier Doped Molecular Solids by Conjugating with Donor Crystal (2011)
  • Author(s): Y. TAKAHASHI, K. HAYAKAWA, S. YOKOKURA, Y. NAKAGAWA, T. NAITO, T. INABE
  • Organizer: International Conference on Materials for Advanced Technologies（ICMAT2011）
  • Place of Presentation: Suntec, Singapore
• [Presentation] Physical Properties of MV[Ni(dmit)2]2 with Optically Responsive Conduction (2011)
  • Author(s): T. TAKANO, Y. TAKAHASHI, T. NAITO, T. INABE
  • Organizer: International Conference on Materials for Advanced Technologies（ICMAT2011）
  • Place of Presentation: Suntec, Singapore
• [Presentation] Functional Nano-size Crystals Grown on the Surface of Molecular Crystal (2011)
  • Author(s): K. HAYAKAWA, S. MUROI, S. YOKOKURA, Y. TAKAHASHI, T. NAITO, T. INABE
  • Organizer: International Conference on Materials for Advanced Technologies（ICMAT2011）
  • Place of Presentation: Suntec, Singapore
• [Presentation] Contact Carrier Doping to the Organic Mott Insulator ET-F2TCNQ Single Crystal (2011)
  • Author(s): Y. NAKAGAWA, S. MUROI, Y. TAKAHASHI, T. NAITO, T. INABE
  • Organizer: International Conference on Materials for Advanced Technologies（ICMAT2011）
  • Place of Presentation: Suntec, Singapore
• [Presentation] Carrier Doping and Patterning Electrodes on Molecular Crystals by Conjugating Donor Crystal (2011)
  • Author(s): Y. Takahashi, K. Hayakawa, Y. Nakagawa, S. Yokokura, T. Inabe, and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Hole Doping in Soluble Organic-Inorganic Hybrid Perovskites using organic dications (2011)
  • Author(s): Y. Takahashi, Y. Takahashi, T. Inabe and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Charge-Transfer Complexes of meso-Substituted Porphyrins (2011)
  • Author(s): J. F. F. Jose, Y. Takahashi, T. Inabe and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Physical and FET Properties of Alloyed Organic-Inorganic Hybrids (2011)
  • Author(s): Y. Kudo, Y. Takahashi, Y. Takahashi, T. Inabe and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Contact Carrier Doping to the Organic Mott Insulator Single Crystal (2011)
  • Author(s): Y. Nakagawa, S. Muroi, Y. Takahashi, T. Inabe and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Electrical Properties of MV[Ni(dmit)2]2 with Optically Responsive Conduction (2011)
  • Author(s): T. TAKANO, Y. TAKAHASHI, T. INABE, T. NAITO
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Functional Nano-size Crystals Grown on the Surface Of the TCNQ Complex Crystal (2011)
  • Author(s): K. Hayakawa, S. Muroi, S. Yokokura, Y. Takahashi, T. Inabe and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] Reversible Rectfication of a CT Complex at Structural Phase Transitions (2011)
  • Author(s): S. Yokokura, Y. Takahashi, T. Inabe and T. Naito
  • Organizer: European Conference on Molecular Electronics（ECME2011）
  • Place of Presentation: Barcelona, Spain
• [Presentation] 光誘起酸化還元特性を持つ電荷移動錯体の輸送特性 (2011)
  • Author(s): 高野 崇廣，高橋 幸裕，稲辺 保，内藤 俊雄
  • Organizer: 第５回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
• [Presentation] 時間分解分光法による有機磁性超伝導体BETS塩の電荷担体緩和挙動の観察 (2011)
  • Author(s): 内藤 俊雄，松尾 早織，稲辺 保, 戸田 泰則
  • Organizer: 第５回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
• [Presentation] 鉄フタロシアニン伝導体の電子物性 (2011)
  • Author(s): 吉田泰輔，田島裕之，木俣基，D.C.E.Yu，内藤俊雄，稲辺保, 松田真生，花咲徳亮
  • Organizer: 第５回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
• [Presentation] kappa-(BEDT-TTF)2Cu[N(CN)2]Brおよびbeta-(BEDT-TTF)2I3の電気伝導と磁化の光照射効果 (2011)
  • Author(s): 飯森 俊文，Sabeth Farzana，内藤 俊雄，藤原 基靖，太田 信廣
  • Organizer: 第５回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
• [Presentation] ゼロギャップ伝導体alpha-(BEDT-TTF)2I3の熱起電力１ (2011)
  • Author(s): 西尾 豊，田嶋尚也，梶田晃示，加藤礼三，田村雅史，内藤俊雄
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス
• [Presentation] STMによるα-ET2I3の表面電子状態の考察 (2011)
  • Author(s): 溝口憲治、森英一、坂本浩一、内藤俊雄
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス
• [Presentation] 巨大磁気抵抗を示すフタロシアニン分子系伝導体における電荷秩序の磁場中融解 (2011)
  • Author(s): 花咲徳亮，立石拓麻，野上由夫，松田真生，田島裕之，瀧川仁，内藤俊雄，稲辺保
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス
• [Presentation] 鉄フタロシアニン錯体におけるパイ－d電子系の磁気秩序と磁場誘起相転移 (2011)
  • Author(s): 瀧川仁，松田真生，花咲徳亮，田島裕之，内藤俊雄，稲辺保
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス
• [Presentation] 光応答性を示す分子性結晶の電気物性 (2011)
  • Author(s): 高野 崇廣，高橋 幸裕，稲辺 保，内藤 俊雄
  • Organizer: 第20回有機結晶シンポジウム
  • Place of Presentation: 富山大学五福キャンパス
• [Remarks]
  • URL: http://chem.sci.ehime-u.ac.jp/~physchem01/220131118_Press.jpg
• [Remarks]
  • URL: http://chem.sci.ehime-u.ac.jp/~physchem01/131029_Press_2.png
• [Remarks] 愛媛大学 理工学研究科 環境機能科学専攻 固体物理化学研究室 プレスリリース
  • URL: http://chem.sci.ehime-u.ac.jp/~physchem01/131029_Press_2.png
• [Remarks] 愛媛大学 理工学研究科 環境機能科学専攻 固体物理化学研究室 プレスリリース
  • URL: http://chem.sci.ehime-u.ac.jp/~physchem01/220131118_Press.jpg
• [Patent(Industrial Property Rights)] フラクタル物体およびフラクタル物体の製造方法 (2013)
  • Inventor(s): 内藤俊雄
  • Industrial Property Rights Holder: 国立大学法人, 愛媛大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2013-09-24
• [Patent(Industrial Property Rights)] フラクタル物体およびフラクタル物体の製造方法 (2013)
  • Inventor(s): 内藤 俊雄
  • Industrial Property Rights Holder: 愛媛大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2013-09-24