Quantum dynamical study of ultrafast dynamics in early processes of photoinduced phase transitions

• Project/Area Number: 23740232
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: University of Tsukuba
• Principal Investigator: MAESHIMA Nobuya 筑波大学, 数理物質系, 講師 (90390658)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 光物性 / 強相関系 / 光誘起相転移 / 強相関電子系 / 電子格子相互作用 / モット絶縁体

Research Abstract

There are many materials which show so-called photoinduced phase transitions, macroscopic changes of electronic states induced by photoirradiation. In this study, we theoretically clarify physical properties of photoexcited states generated immediately after the photoirradiation and the subsequent dynamics. In particular, we carry out numerical analysis of the photoexcited states and dynamical properties of one-dimensional (1D) electron-lattice systems corresponding to quasi-1D organic compounds and a multi-band Hubbard model which is a minimal model of transition metal oxides.

Research Products

• [Journal Article] Spin and Orbital Correlations in Photoexcited States of Multi-Orbital Hubbard Models (2014)
  • Author(s): Hikaru Takenaka, Nobuya Maeshima and Ken-ichi Hino
  • Journal Title: JPS Conference Proceedings Volume: (to be published)
  • Peer Reviewed
• [Journal Article] Optical response of polarons and solitons in one-dimensional Peierls-Hubbard model (2012)
  • Author(s): Nobuya Maeshima, Kosuke Moriya, and Ken-ichi Hino
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Issue: 10 Pages: 104708-104708
  • DOI: 10.1143/jpsj.81.104708
  • NAID: 40019447531
  • Peer Reviewed
• [Journal Article] Dimerization-induced spin-charge coupling in one-dimensional Mott insulators revealed by femtosecond reflection spectroscopy of Rb-tetracyanoquinodimethane salts (2012)
  • Author(s): H. Uemura, N. Maeshima, K. Yonemitsu, and H. Okamoto
  • Journal Title: Phys. Rev. B Volume: 85
  • Peer Reviewed
• [Journal Article] Dynamical properties of photogenerated polarons in one-dimensional dimerized Mott Insulators (2012)
  • Author(s): K. Moriya, N. Maeshima and K. I. Hino
  • Journal Title: Eur. Phys. J. B Volume: 85 Issue: 10 Pages: 350-350
  • DOI: 10.1140/epjb/e2012-30690-0
  • Peer Reviewed
• [Journal Article] Dynamical Fano resonance of an exciton in laser-driven semiconductor superlattices (2012)
  • Author(s): Nobuya Maeshima and Ken-ichi Hino
  • Journal Title: Phys. Rev. B Volume: 85 Issue: 20
  • DOI: 10.1103/physrevb.85.205305
  • NAID: 120007130614
  • Peer Reviewed
• [Presentation] 2軌道縮退ハバード模型における光誘起ダイナミクス (2014)
  • Author(s): 井本文裕,前島展也,日野健一
  • Organizer: 日本物理学会 第69回年次大会
  • Place of Presentation: 東海大学
  • Year and Date: 2014-03-29
• [Presentation] 2軌道縮退ハバード模型における光誘起ダイナミクス (2014)
  • Author(s): 井本文裕，前島展也，日野健一
  • Organizer: 日本物理学会 第69回年次大会
  • Place of Presentation: 東海大学(神奈川)
• [Presentation] 2軌道縮退ハバード模型における光励起状態のスピン・軌道相関II (2013)
  • Author(s): 前島展也,竹中光,日野健一
  • Organizer: 日本物理学会 2013年秋季大会
  • Place of Presentation: 徳島大学
  • Year and Date: 2013-09-26
• [Presentation] Spin and Orbital Correlations in Photoexcited States of Multi-Orbital Hubbard Models (2013)
  • Author(s): H. Takenaka, N. Maeshima, K. Hino
  • Organizer: SCES2013
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2013-08-07
• [Presentation] 2軌道縮退ハバード模型における光励起状態のスピン・軌道相関 (2013)
  • Author(s): 竹中光,前島展也,日野健一
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-28
• [Presentation] Spin and Orbital Correlations in Photoexcited States of Multi-Orbital Hubbard Models (2013)
  • Author(s): H. Takenaka, N. Maeshima and K. Hino
  • Organizer: SCES2013
  • Place of Presentation: 東京大学(東京)
• [Presentation] 2軌道縮退ハバード模型における光励起状態のスピン・軌道相関II (2013)
  • Author(s): 前島展也, 竹中光，日野健一
  • Organizer: 日本物理学会 2013年秋季大会
  • Place of Presentation: 徳島大学(徳島)
• [Presentation] 2軌道縮退ハバード模型における光励起状態のスピン・軌道相関 (2013)
  • Author(s): 竹中光，前島展也，日野健一
  • Organizer: 日本物理学会 第68回年次大会
  • Place of Presentation: 広島大学 東広島キャンパス
• [Presentation] Dynamical properties of photogenerated polarons and solitons in one-dimensional dimerized Mott insulators (2012)
  • Author(s): Kosuke Moriya, Nobuya Maeshima, and Ken-ichi Hino1
  • Organizer: EXCON 2012
  • Place of Presentation: Groningen, the Netherlands
  • Year and Date: 2012-07-03
• [Presentation] 擬一次元ハロゲン架橋金属錯体の光誘起ダイナミクスにおける鎖間相互作用の効果II (2012)
  • Author(s): 齋藤陽平,前島展也,日野健一
  • Organizer: 日本物理学会 第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] Laser-controlled excitonic Fano resonance in semiconductor superlattice (2012)
  • Author(s): Nobuya Maeshima, Kohei Yamada, and Ken-ichi Hino
  • Organizer: EXCON 2012
  • Place of Presentation: Groningen, the Netherlands
• [Presentation] Laser-induced Fano resonance in semiconductor superlattice (2012)
  • Author(s): Nobuya Maeshima, Kohei Yamada, and Ken-ichi Hino
  • Organizer: ICPS 2012
  • Place of Presentation: Zurich, Switzerland
• [Presentation] 擬一次元ハロゲン架橋金属錯体の光誘起ダイナミクスにおける鎖間相互作用の効果II (2012)
  • Author(s): 齋藤陽平，前島展也，日野健一
  • Organizer: 日本物理学会 第67回年次大会
  • Place of Presentation: 関西学院大学(西宮市)
• [Presentation] 擬一次元ハロゲン架橋金属錯体の光誘起ダイナミクスにおける鎖間相互作用の効果 (2011)
  • Author(s): 齋藤陽平,前島展也,日野健一
  • Organizer: 日本物理学会 2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] 擬一次元ハロゲン架橋金属錯体の光誘起ダイナミクスにおける鎖間相互作用の効果 (2011)
  • Author(s): 齋藤陽平，前島展也，日野健一
  • Organizer: 日本物理学会 2011年秋季大会
  • Place of Presentation: 富山大学(富山市)