Magnetic and electric properties of inhomogeneous dilute magneticsemiconductors calculated by the cluster CPA method

• Project/Area Number: 19740239
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: Osaka University
• Principal Investigator: SATO Kazunori Osaka University, 大学院基礎工学研究科, 特任准教授(常勤) (60379097)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,690,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2007: ¥2,000,000 (Direct Cost: ¥2,000,000)
• Keywords: 第一原理計算 / 材料設計 / スピントロニクス / 不規則系 / 希薄磁性半導体 / コヒーレントポテンシャル近似 / 局所環境効果 / クラスター法 / マテリアルデザイン / 磁性半導体 / クラスター / 拡散 / スピンエレクトロニクス

Research Abstract

単一サイトCPAによる希薄磁性半導体の電子状態計算に、クラスター埋め込み法により局所環境効果を取り入れる計算機プログラムを開発し、磁性不純物間の磁気的相互作用への影響を調べた。その結果、特に第一近接原子間の磁気的相互作用が局所環境効果の影響を大きく受けることがわかり、不純物の配置によっては磁気的相互作用が符号を変える場合もあることが示された。しかしこの効果は磁気的なパーコレーションのために系のキュリー温度には大きく影響しない。

Research Products

• [Journal Article] Computational nano-materials design for the wide band gap and high T_C semiconductor spintronics (2008)
  • Author(s): H. Katayama-Yoshida, K. Sato, T. Fukushima, M. Toyoda, H. Kizaki and V. A. Dinh
  • Journal Title: Semiconductors and Semimetals 82 Pages: 433-454
  • Peer Reviewed
• [Journal Article] New high-T_C half Heusler ferromagnetis NiMnZ (Z = Si, P, Ge, As) (2008)
  • Author(s): V. A. Dinh, K. Sato, H. Katayama-Yoshida
  • Journal Title: J. Phys. Soc. Jpn. 77
  • Peer Reviewed
• [Journal Article] Computational nano-manterials design for II-VI compound semiconductor-based spintronics (2008)
  • Author(s): H. Katayama-Yoshida, K. Sato T. Fukushima, M. Toyoda, H. Kizaki, V. A. Dinh, P. H. Dederichs
  • Journal Title: J. Kor. Phys. Soc. 53 Pages: 1-12
  • Peer Reviewed
• [Journal Article] New high-Tc half Heusler ferromagnetis NiMnZ (Z=Si, P, Ge, As) (2008)
  • Author(s): V. A. Dinh, K. Sato and H. Katayama-Yoshida
  • Journal Title: J. Phys. Soc. Jpn 77
  • Peer Reviewed
• [Journal Article] Computational nano-manterials design for II-VI compound semiconductor-based spintronics (2008)
  • Author(s): H. Katayama-Yoshida, K Sato T. Fukushima, M. Toyoda, H. Kizaki, V. A. Dinh and P. H. Dederichs
  • Journal Title: J. Kor. Phys. Soc 53 Pages: 1-12
  • Peer Reviewed
• [Journal Article] Materials design of CuAlO2-based dilute magnetic semiconductors by first-principles calculations and Monte Carlo simulations (2008)
  • Author(s): H. Kizaki, K. Sato and H. Katayama-Yoshida
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 6488-6495
  • NAID: 40016211040
  • Peer Reviewed
• [Journal Article] Computational nano-materials design for the wide band gap and high T_C semiconductor spintronics (2008)
  • Author(s): H. Katayama-Yoshida, K. Sato, TFukushima, M. Toyoda, H. Kizaki and V. A. Dinh
  • Journal Title: emiconductors and Semimetals 82 Pages: 433-454
  • Peer Reviewed
• [Journal Article] First-principles study on the ferromagnetism and Curie temperature of Mn-doped AlX and InX (X = N, P, As and Sb) (2007)
  • Author(s): K. Sato, P. H. Dederichs, H. Katayama-Yoshida
  • Journal Title: J. Phys. Soc. Jpn. 76
  • NAID: 110006203537
  • Peer Reviewed
• [Journal Article] Effective exchange interactions in CuAlO_2-based dilute magetic semiconductors by first-principles calculations (2007)
  • Author(s): H. Kizaki, K. Sato, H. Katayama-Yoshida
  • Journal Title: Physica B 401 Pages: 462-464
  • Peer Reviewed
• [Journal Article] Super-paramagnetic blocking phenomena and room-temperature ferromagnetism in wide band-gap dilute magnetic semiconductor (Ga, Mn)N' (2007)
  • Author(s): K. Sato, T. Fukushima, H. Katayama-Yoshida
  • Journal Title: Jpn. J. Appl. Phys. 46
  • NAID: 210000064044
  • Peer Reviewed
• [Journal Article] Ferromagnetism and spinodal decomposition in dilute magnetic nitride semiconductors (2007)
  • Author(s): K. Sato, T. Fukushima, H. Katayama-Yoshida
  • Journal Title: J. Phys. Condens. Matter 19
  • Peer Reviewed
• [Journal Article] Design of colossal solubility of magnetic impurities for semiconductor spintronics by the co-doping method (2007)
  • Author(s): K. Sato, H. Katayama-Yoshida
  • Journal Title: Jpn. J. Appl. Phys 46
  • NAID: 210000063800
  • Peer Reviewed
• [Journal Article] First-principles study on the ferromagnetism and Curie temperature of Mn-doped AIX and InX (X = N, P,As and Sb) (2007)
  • Author(s): K. Sato, P. H. Dederichs, H. Katayama-Yoshida
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 2471712-2471712
  • Peer Reviewed
• [Journal Article] Super-paramagnetic blocking phenomena and room-temperature ferromagnetism in wide band-gap dilute magnetic semiconductor (Ga, Mn)N (2007)
  • Author(s): K. Sato, T. Fukushima, H. Katayama-Yoshida
  • Journal Title: Jpn. J. Appl. Phys. 46 Pages: 682-684
  • NAID: 210000064044
  • Peer Reviewed
• [Journal Article] Dilute magnetic semiconductors based on half-Heusler alloys (2007)
  • Author(s): T. Fukushima, K. Sato, H. Katayama-Yoshida, P. H. Dederichs
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 947135-947135
  • NAID: 110006418616
  • Peer Reviewed
• [Presentation] Control of spinodal decomposition in dilute magnetic semiconductors and computational materials design for semiconductor spintronics (invited) (2008)
  • Author(s): K. Sato
  • Organizer: Computational Magnetism and Spintronics International Workshop
  • Place of Presentation: Dresden.Germany
  • Year and Date: 2008-11-07
• [Presentation] Control of spinodal decomposition in dilute magnetic semiconductors and computational materials design for semiconductor spintronics (2008)
  • Author(s): K. Sato
  • Organizer: Computational Magnetism and Spintronics International Workshop
  • Place of Presentation: Dresden. Germany(invited)
  • Year and Date: 2008-11-07
• [Presentation] Design of Dilute Magnetic Semiconductors by Controlling Spinodal Decomposition (2008)
  • Author(s): K. Sato, T. Fukushima, and H. Katavama-Yoshida
  • Organizer: Fifth International Conference on Physicsand Applications of Spin-related Phenomena in Semiconductors
  • Place of Presentation: Iguacu, Brazil
  • Year and Date: 2008-08-04
• [Presentation] Design of Dilute Magnetic Semiconductors with room Temperature Ferromagnetism by Controlling Spinodal Decompostion (2008)
  • Author(s): K. Sato, T. Fukushima, and H. K. -Yoshida
  • Organizer: 29th International Conference on the Physics of Semiconductors
  • Place of Presentation: Rio de Janeiro, Brazil
  • Year and Date: 2008-07-29
• [Presentation] Design of dilute magnetic semiconductors with room temperature ferromagnetism by controlling spinodal decomposition (2008)
  • Author(s): K. Sato, T. Fukushima, H. Katayama-Yoshida
  • Organizer: The 1st International Conference of the Grand Challenge to Next-Generation Integrated Nanoscience
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2008-06-04
• [Presentation] Design of dilute magnetic semiconductors with room temperature ferromagnetism by controlling spinodal decomposition (2008)
  • Author(s): K. Sato, T. Fukushima and H. Katayama-Yoshida
  • Organizer: International Conference on Quantum Simulation and Design 2008
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2008-06-02
• [Presentation] 3dと4d遷移金属の同時添加による希薄磁性半導体の物質設計 (2008)
  • Author(s): 佐藤和則、吉田博
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-24
• [Presentation] Design of dilute magnetic semiconductors with room temperature ferromagnetism by controlling spinodal decomposition (invited) (2008)
  • Author(s): K. Sato
  • Organizer: American Physical Society March Meeting
  • Place of Presentation: New Orleans, LA, USA
  • Year and Date: 2008-03-13
• [Presentation] 希薄磁性半導体の第一原理電子状態計算と高温強磁性半導体のマテリアルデザイン(招待講演) (2008)
  • Author(s): 佐藤和則
  • Organizer: 日本磁気学会「半導体のスピン機能とデバイス応用」研究会
  • Place of Presentation: 化学会館、東京
  • Year and Date: 2008-03-03
• [Presentation] Design of colossal solubility of magnetic impurities for semiconductor spintronics by using the co-doping method (2007)
  • Author(s): K. Sato, H. Katayama-Yoshida
  • Organizer: The 12th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS12)
  • Place of Presentation: 大阪大学
  • Year and Date: 2007-12-20
• [Presentation] Design of colossal solubility of magnetic impurities for semiconductor spintronoics by using the co-doping method (2007)
  • Author(s): K. Sato, H. Katayama-Yoshida
  • Organizer: The 10th Asian Workshop on First-Principles Electronic Structure Calculation
  • Place of Presentation: Hiroshima University
  • Year and Date: 2007-10-30
• [Presentation] ナノスケールスピノダル分解によるスピン流と制御法のデザイン (2007)
  • Author(s): 佐藤和則、吉田博
  • Organizer: 東北大学電気通信研究所共同プロジェクト研究会「スピンエレクトロニクスの新展開」
  • Place of Presentation: 東北大学電気通信研究所
  • Year and Date: 2007-10-05
• [Presentation] Inhomogeneity and Its Effects on the Ferromagnetism of Dilute Magnetic Semiconductors (2007)
  • Author(s): K. Sato, T. Fukushima, H. Katayama-Yoshida
  • Organizer: Handai Nanoscience and Nanotechnology International Symposium
  • Place of Presentation: Osaka University
  • Year and Date: 2007-09-26
• [Presentation] 同時ドーピング法によるスピノダル分解の制御と希薄磁性半導体のマテリアルデザイン (2007)
  • Author(s): 佐藤和則、福島鉄也、豊田雅之、木崎栄年、ディンバンアン、吉田博
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-22
• [Presentation] Computational nano-materials design for semiconductor spintronics (invited) (2007)
  • Author(s): K. Sato, T. Fukushima, M. Toyoda, H. Katayama-Yoshida
  • Organizer: The 4^<th> conference of the Asian consortium on computational materaisl science
  • Place of Presentation: Seoul, Korea
  • Year and Date: 2007-09-13
• [Presentation] Computational nano-materials design for semiconductor spintronics (invited) (2007)
  • Author(s): K. Sato, T. Fukushima, M. Toyoda, H. Katayama-Yoshida
  • Organizer: The 4th conference of the Asian consortium on computational materaisl science
  • Place of Presentation: Seoul, Korea
  • Year and Date: 2007-09-13
• [Presentation] Self-organization and super-paramagnetism in dilute magnetic semiconductors (2007)
  • Author(s): K. Sato, T. Fukushima, H. Katayama-Yoshida
  • Organizer: 24th International Conference on Defects in Semiconductors (ICDS24)
  • Place of Presentation: Albuquerque, NM, USA
  • Year and Date: 2007-07-26
• [Presentation] Spinodal decomposition and super-paramagnetism in dilute magnetic semiconductors (2007)
  • Author(s): K. Sato
  • Organizer: 4th International School and Conference on Spintronics and Quantum lnformation Technology (Spintech IV)
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2007-06-21
• [Presentation] Design of colossal solubility of magnetic impurities for semiconductor spintronics by using the co-doping method (2007)
  • Author(s): K. Sato, H. Katayama-Yoshida
  • Organizer: The 11th SANKEN International Symposium
  • Place of Presentation: 淡路夢舞台国際会議場
  • Year and Date: 2007-02-04
• [Presentation] Spinodal decomposition and super-paramagnetism in dilute magnetic semiconductors (2007)
  • Author(s): K. Sato
  • Organizer: International Conferencen on Nanospintronics Design and Realization (ICNDR2007)
  • Place of Presentation: Dresden, Germany
• [Book] ZnO系の最新技術と応用(八百隆文監修), 第9.1章酸化亜鉛ベース希薄磁性半導体のマテリアルデザイン (2007)
  • Author(s): 佐藤和則, 豊田雅之, 吉田博
  • Publisher: シーエムシー出版
• [Book] Computational materials design of ZnO-based semiconductor spintronics, in Magnetism in semiconducting oxides (Ed. N. G. Hong) (2007)
  • Author(s): K. Sato, M. Toyoda, T. Fukushima, V. A. Dinh, H. Kizaki, H. Katayama-Yoshida
  • Total Pages: 140
  • Publisher: Transworld research network, Kerala, India
• [Remarks]
  • URL: http://www-suzuki.mp.es.osaka-u.ac.jp
• [Remarks]
  • URL: http://www.cmp.sanken.osaka-u.ac.jp/index_jp.html