Next Generation Super High DensityFerroelectric Data Storage UsingScanning Nonlinear Dielectric Microscopy Technique

2008 Fiscal Year Self-evaluation Report

• Project/Area Number: 18002005
• Research Category: Grant-in-Aid for Specially Promoted Research
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering; Engineering
• Research Institution: Tohoku University
• Principal Investigator: CHO Yasuo Tohoku University, 電気通信研究所, 教授 (40179966)
• Project Period (FY): 2006 – 2010
• Keywords: 強誘電体記録 / 高密度記録 / SNDM

Research Abstract

本研究では走査型非線形誘電率顕微鏡と薄片化単結晶記録媒体作製技術,を研究開発の核にして,人工的に作製可能で物理的に安定な最小の強誘電ナノドメインドットの大きさや強誘電性の消失する限界の試料厚の確定,スイッチングスピードの詳細な計測や強誘電体のドメイン壁の実測などの基礎的研究を行い,これらの結果と新開発の非接触SNDM法等プローブメモリ技術の諸問題点を根本から解決できる多数のSNDM関連技術を組み合わせ,実用化技術として発展させることを目的とする.

Research Products

• [Journal Article] Scanning Nonlinear Dielectric Microscopy Nano-Science and Technology for Next Generation High Density Ferroelectric Data Storage (2008)
  • Author(s): Kenkou TANAKA, Yuichi KURIHASHI, Tomoya UDA, Yasuhiro DAIMON, Nozomi ODAGAWA, Ryusuke HIROSE, Yoshiomi HIRANAGA, and Yasuo CHO
  • Journal Title: Jpn. J. Appl. Phys Vol.47, No.5 Pages: 3311-3325
  • Peer Reviewed
• [Journal Article] Novel HDD-type SNDM Ferroelectric Data Storage System Aimed at High-Speed Data Transfer with Single Probe Operation (2007)
  • Author(s): Yoshiomi Hiranaga, Tomoya Uda, Yuichi Kurihashi, Kenkou Tanaka, and Yasuo Cho
  • Journal Title: IEEE TRANSACTION ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL Vol.54, No.12 Pages: 2523-2528
  • Peer Reviewed
• [Journal Article] Atomic Dipole Moment Distribution of Si Atoms on a Si(111)-(7×7) Surface Studied Using Noncontact Scanning Nonlinear Dielectric Microscopy (2007)
  • Author(s): Yasuo Cho and Ryusuke Hirose
  • Journal Title: Physical Review Letters Vol.99, No.18 Pages: 186101-1-186101-4
  • Peer Reviewed
• [Journal Article] Cross- sectional observation of nanodomain dots formed in both congruent and stoichiometric LiTaO3 crystals (2007)
  • Author(s): Yasuhiro Daimon and Yasuo Cho
  • Journal Title: Appl. Phys. Lett. Vol.90 Pages: 192906-1-192906-3
  • Peer Reviewed
• [Journal Article] Wall behavior of nanodomains as a function of their initial state (2006)
  • Author(s): Nozomi Odagawa and Yasuo Cho
  • Journal Title: Appl. Phys. Lett. Vol.89 Pages: 192906-1-192906-3
  • Peer Reviewed
• [Journal Article] Long-term- retention characteristics of small inverted dots formed on congruent single-crystal LiTaO_3 (2006)
  • Author(s): Nozomi Odagawa and Yasuo Cho
  • Journal Title: Appl. Phys. Lett. Vol.89 Pages: 102906-1-102906-3
  • Peer Reviewed
• [Presentation] Next Generation Ferroelectric high Density Data Storage Based on Scanning Nonlinear Dielectric Microscopy (2008)
  • Author(s): Yasuo Cho, Yoshiomi Hiranaga, Kenkou Tanaka, Yuichi Kurihashi, and Tomoya Uda
  • Organizer: The 2nd IEEE Nanotechnology Materials and Devices Conference, Abstract
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 20081020-22
• [Presentation] Scanning Nonlinear Dielectric Microscopy Nano Science and Technology for Next Generation High Density Ferroelectric Data Storage (2008)
  • Author(s): Yasuo Cho, Kenkou Tanaka, Yuichi Kurihashi, Tomoya Uda, Yasuhiro Daimon, Nozomi Odagawa, Ryusuke Hirose and Yoshiomi Hiranaga
  • Organizer: 20th International Symposium on Integrated Ferroelectrics
  • Place of Presentation: Biopolis, Singapore
  • Year and Date: 20080609-12
• [Presentation] Non-Contact Probe Control and High-Speed Writing for Rotated-Disk-Type Ferroelectric Data Storage Devices (2007)
  • Author(s): Y. Hiranaga, T. Uda, Y. Kurihashi, K. Tanaka, N. Odagawa and Y. Cho
  • Organizer: The 16th IEEE International Symposium on the Applications of Ferroelectrics, Proceedings
  • Place of Presentation: Nara, Japan
  • Year and Date: 20070527-31
• [Remarks]
  • URL: http://www.d-nanodev.riec.tohoku.ac.jp/research2/for3.htm