Investigation and application of terahertz switching dynamics in phase change optical recording media

• Project/Area Number: 22340076
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: University of Tsukuba
• Principal Investigator: HASE Muneaki 筑波大学, 数理物質系, 准教授 (40354211)
• Co-Investigator(Renkei-kenkyūsha): TOMINAGA Junji 産業技術総合研究所, ナノエレクトロニクス研究部門, 首席研究員 (10357577)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000); Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2010: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
• Keywords: 光記録 / コヒーレントフォノン / 相変化 / テラヘルツ

Research Abstract

In this study we aimed to observe lattice dynamics in femto- to pico-second time scales during the crystalline-amorphous phase change in chalcogenide alloy (Ge-Sb-Te mixed crystals), which is extremely important materials for optical recording media. As the results, we could observe ultrafast (< 1 ps) phase change by exciting with double-pulse (pulse-pair). The pump-polarization dependent phase change phenomena have also been found in the pump-probe experiment.

Research Products

• [Journal Article] Ultrafast Optical Manipulation of Atomic Motions in Multilayer Ge-Sb-Te Phase Change Materials (2013)
  • Author(s): K. Makino, J. Tominaga, A.V. Kolobov, P. Fons and M. Hase
  • Journal Title: Ultrafast Phenomena XVIII (M. Chergui, S. Cundiff, K. Yamanouchi, R. Riedle, A. Taylor (Eds.), EDP Sciences - Web of Conferences) Volume: 41 Pages: 3007-3007
  • DOI: 10.1051/epjconf/20134103007
  • Peer Reviewed
• [Journal Article] 相変化光記録膜材料のコヒーレントフォノン分光と超高速光誘起構造変化 (2013)
  • Author(s): 長谷宗明, 牧野孝太郎, 富永淳二
  • Journal Title: 日本物理学会誌 Volume: Vol. 68 Pages: 314-318
  • URL: http://www.jps.or.jp/books/gakkaishi/2013/05/685.html
  • Peer Reviewed
• [Journal Article] 相変化光記録膜材料のコヒーレントフォノン分光と超高速光誘起構造変化 (2013)
  • Author(s): 長谷宗明, 牧野孝太郎, 富永淳二
  • Journal Title: 日本物理学会誌（最近の研究から） Volume: 68
  • Peer Reviewed
• [Journal Article] Bond-selective excitation and following displacement of Ge atoms in GeTe/Sb_2Te_3 superlattice (2012)
  • Author(s): Kotaro Makino, Junji Tominaga, Muneaki Hase
  • Journal Title: Acta Phys. Pol. A Volume: Vol. 121 Pages: 336-339
  • URL: http://przyrbwn.icm.edu.pl/APP/ABSTR/121/a121-2-10.html
  • Peer Reviewed
• [Journal Article] Polarization dependent optical control of atomic arrangement in multilayer Ge-Sb-Te phase change materials (2012)
  • Author(s): K. Makino, J. Tominaga, A.V. Kolobov, P. Fons and M. Hase
  • Journal Title: Applied Physics Letters Volume: 101 Issue: 23 Pages: 232101-232101
  • DOI: 10.1063/1.4768785
  • Peer Reviewed
• [Journal Article] Bond-selective excitation and following displacement of Ge atoms in GeTe/Sb_2Te_3 superlattice (2012)
  • Author(s): K.Makino, J.Tominaga, M.Hase
  • Journal Title: Acta Phys.Pol.A Volume: 121 Pages: 336-339
  • Peer Reviewed
• [Journal Article] Control of carrier transport in GaAs bylongitudinal -optical phonon-carrier scattering using a pair of laser pump pulses (2011)
  • Author(s): Muneaki Hase, Daisuke Hayashi, and J. D.Lee
  • Journal Title: J. Appl. Phys Volume: Vol. 109 Issue: 7 Pages: 73715-73715
  • DOI: 10.1063/1.3562188
  • Peer Reviewed
• [Journal Article] Thermal conductivity of GeTe/Sb2Te3 superlattices measured by coherent phonon spectroscopy (2011)
  • Author(s): Muneaki Hase and Junji Tominaga
  • Journal Title: Appl. Phys. Lett Volume: Vol. 99 Issue: 3 Pages: 31902-31902
  • DOI: 10.1063/1.3611030
  • NAID: 120007130807
  • Peer Reviewed
• [Journal Article] Ultrafast optical manipulation of atomic arrangements in chalcogenide alloy memory materials (2011)
  • Author(s): Kotaro Makino, Junji Tominaga, Muneaki Hase
  • Journal Title: Optics Express Volume: Vol. 19 Issue: 2 Pages: 1260-1270
  • DOI: 10.1364/oe.19.001260
  • NAID: 120007137807
  • Peer Reviewed
• [Journal Article] Ultrafast phase change in Ge2Sb2Te5induced by selective excitation of coherent phonons (2011)
  • Author(s): Kotaro Makino, Junji Tominaga, Muneaki Hase
  • Journal Title: Ultrafast Phenomena XVII Pages: 203-205
  • URL: http://global.oup.com/academic/product/ultrafast-phenomena-xvii-9780199768370?cc=jp&lang=en&tab=overview
  • Peer Reviewed
• [Journal Article] UItrafast optical manipulation of atomic arrangements in chalcogenidealloy memory materials (2011)
  • Author(s): Kotaro Makino, Junji Tominaga, Muneaki Hase
  • Journal Title: Optics Express Volume: 19 Pages: 1260-1270
  • Peer Reviewed
• [Journal Article] Ultrafast phase change in Ge^<2>Sb^<2>Te^<5> induced by selective excitation of coherent phonons (2011)
  • Author(s): Kotaro Makino, Junji Tominaga, Muneaki Hase
  • Journal Title: Ultrafast Phenomena XVII Pages: 203-205
  • Peer Reviewed
• [Presentation] Ultrafast dynamics of coherent phonons in phase change materials: Evaluation of thermal conductivity (2012)
  • Author(s): Muneaki Hase
  • Organizer: The 24thSymposium on Phase Change Optical Information Storage
  • Place of Presentation: ホテルウェルシーズン浜名湖, 日本.
  • Year and Date: 2012-11-29
• [Presentation] Ultrafast dynamics and coherent control of phase changes in Ge-Sb-Te materials (2012)
  • Author(s): Muneaki Hase
  • Organizer: 2012 MRS Spring Meeting
  • Place of Presentation: Moscone West Convention Center, San Francisco, CA, USA.
  • Year and Date: 2012-04-09
• [Presentation] Ultrafast phase change in Ge-Sb-Te based optical recording media (2012)
  • Author(s): Muneaki Hase
  • Organizer: Gordon Research Conference on Ultrafast Phenomena in Cooperative Systems
  • Place of Presentation: Hotel Galvez, Galveston, TX, USA
  • Year and Date: 2012-02-19
• [Presentation] Ultrafast phase change in Ge-Sb-Te based optical recording media (2012)
  • Author(s): Muneaki Hase
  • Organizer: Gordon Research Conference on Ultrafast Phenomena in Cooperative Systems
  • Place of Presentation: Hotel Galvez, Galveston, TX, USA(招待講演)
  • Year and Date: 2012-02-19
• [Presentation] Ultrafast dynamics of coherent optical phonons in GeTe/Sb2Te3 superlattices: Thermal conductivity and coherent control (2012)
  • Author(s): Muneaki Hase
  • Organizer: Photonics West 2012 Conference 8260 "Ultrafast Phenomena and Nanophotonics XVI"
  • Place of Presentation: Moscone Center, San Francisco, CA, USA
  • Year and Date: 2012-01-25
• [Presentation] Ultrafast dynamics of coherent optical phonons in GeTe/Sb_2Te_3 superlattices : Thermal conductivity and coherent control (2012)
  • Author(s): Muneaki Hase, Junji Tominaga
  • Organizer: Photonics West 2012 ; Conference 8260 "Ultrafast Phenomena and Nanophotonics XVI"
  • Place of Presentation: Moscone Center, San Francisco, CA, USA
  • Year and Date: 2012-01-25
• [Presentation] Ultrafast Optical Manipulation of Atomic Motions in Multilayer Ge-Sb-Te Phase Change Materials (2012)
  • Author(s): Kotaro Makino, Junji Tominaga, Alex V. Kolobov, Paul Fons, and Muneaki Hase
  • Organizer: XVIIIth International Conference on Ultrafast Phenomena
  • Place of Presentation: University of Lausanne, Switzerland.
• [Presentation] Ultrafast dynamics of coherent phonons in phase change materials: Evaluation of thermal conductivity (2012)
  • Author(s): Muneaki Hase
  • Organizer: The 24th Symposium on Phase Change Optical Information Storage
  • Place of Presentation: ﾎﾃﾙｳｪﾙｼｰｽﾞﾝ浜名湖
• [Presentation] Ultrafast dynamics and coherent control of phase changes in Ge-Sb-Te materials (2012)
  • Author(s): Muneaki Hase
  • Organizer: 2012 MRS Spring Meeting
  • Place of Presentation: Moscone West Convention Center, USA
  • Invited
• [Presentation] Ultrafast Optical Manipulation of Atomic Motions in Multilayer Ge-Sb-Te Phase Change Materials (2012)
  • Author(s): K. Makino, J. Tominaga, A. V. Kolobov, P. Fons, and M. Hase
  • Organizer: XVIIIth International Conference on Ultrafast Phenomena
  • Place of Presentation: University of Lausanne, Switzerland
• [Presentation] Ultrafast dynamics of phase change in Ge-Sb-Te materials studied by coherent phonon spectroscopy (2011)
  • Author(s): Muneaki Hase
  • Organizer: The 23rd Symposium on Phase Change Optical Information Storage
  • Place of Presentation: 熱海後楽園ホテル, 日本
  • Year and Date: 2011-11-17
• [Presentation] Ultrafast dynamics of phase change in Ge-Sb-Te materials studied by coherent phonon spectroscopy (2011)
  • Author(s): Muneaki Hase
  • Organizer: The Symposium on Phase Change Optical Information Storage
  • Place of Presentation: 熱海後楽園ホテル,日本(招待講演)
  • Year and Date: 2011-11-17
• [Presentation] Ultrafast coherent switching of phase-change in rewritable optical media (2011)
  • Author(s): Muneaki Hase
  • Organizer: Joint International Symposium on Optical Memory & Optical Data Storage (ISOM/ODS)
  • Place of Presentation: Kauai Marriott, Kauai Island, HI, USA
  • Year and Date: 2011-07-19
• [Presentation] Ultrafiast coherent switching of phase-change in rewritable optical media (2011)
  • Author(s): Muneaki Hase
  • Organizer: Joint International Symposium on Optical Memory & Optical Data Storaere (ISOM/ODS)
  • Place of Presentation: Kauai Marriott, Kauai Island, HI, USA(招待講演)
  • Year and Date: 2011-07-19
• [Presentation] Ultrafast phase change in Ge_2Sb_2Te_5 superlattices monitored by coherent phonon spectroscopy (2010)
  • Author(s): Muneaki Hase
  • Organizer: European Phase Change and Ovonics Symposium
  • Place of Presentation: イタリア・ミラノ工科大学
  • Year and Date: 2010-09-07
• [Presentation] Ultrafast phase change in Ge^2Sb^2Te^5 superlattices monitored by coherent phonon spectroscopy (2010)
  • Author(s): Muneaki Hase
  • Organizer: European Phase Change ahd Ovonics Symposium
  • Place of Presentation: イタリア・ミラノ工科大学(招待講演)
  • Year and Date: 2010-09-07
• [Book] 「コヒーレントフォノン制御による物性操作」in光アライアンス (2011)
  • Author(s): 長谷宗明
  • Publisher: 日本工業出版
• [Book] コヒーレントフォノン制御による物性操作(in Vol.22, NO.4) (2011)
  • Author(s): 長谷宗明
  • Publisher: 光アライアンス(日本工業出版)
• [Book] Excitation and Time-Evolution of Coherent Optical Phonons, in Dynamics at Solid State Surfaces and Interfaces (2010)
  • Author(s): Muneaki Hase, O. V. Misochko and Kunie Ishioka
  • Publisher: Inc
• [Book] Excitation and Time-Evolution of Coherent Optical Phonons, in Dynamics at SolidState Surfaces and Interfaces Vol.1 : Current Developments (2010)
  • Author(s): Muneaki Hase, 0.V.Misochko, Kunie Ishioka
  • Total Pages: 25
  • Publisher: John Wiley, Sons, Inc
• [Remarks]
  • URL: http://bukko.bk.tsukuba.ac.jp/~mhase/indexJ.html
• [Remarks] 研究室ホームページ
  • URL: http://bukko.bk.tsukuba.ac.jp/~mhase/indexJ.html
• [Remarks]
  • URL: http://bukko.bk.tsukuba.ac.jp/~mhase/indexJ.html
• [Remarks]
  • URL: http://bukko.bk.tsukuba.ac.jp/-mhase/indexJ.html
• [Patent(Industrial Property Rights)] 相変化記録膜を有する相変化装置、及び相変化記録膜の相変化スイッチング方法 (2010)
  • Inventor(s): 長谷宗明、牧野孝太郎、富永淳二
  • Industrial Property Rights Holder: 筑波大学、産業技術総合研究所
  • Filing Date: 2010-08-09
  • Overseas