Thermal conductivity of ferroelectric nanoregions and the exploration of morphotropic phase boundary through high-pressure synthesis

• Project/Area Number: 20740178
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics I
• Research Institution: National Institute for Materials Science
• Principal Investigator: TACHIBANA Makoto National Institute for Materials Science, 超伝導材料センター, 主任研究員 (40442727)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 誘電体 / リラクサー強誘電体 / モルフォトロピック相境界 / 単結晶育成 / 熱伝導率 / 比熱

Research Abstract

Although relaxor ferroelectrics are known for their exceptional piezoelectric properties, the nanoscale phase separation phenomena found in these materials are not well understood. The specific heat and thermal conductivity measurements on the typical relaxor ferroelectrics (1-x)Pb(Mg_<1/3>Nb_<2/3>)O_3-xPbTiO_3 and (1-x)Pb(Zn_<1/3>Nb_<2/3>)O_3-xPbTiO_3 showed that the thermal properties change from glasslike to crystal-like as the size of ferroelectric regions grow from nanoscale to macroscale.

Research Products

• [Journal Article] キャリアをドープしたBaTiO_3の金属-絶縁体転移と強誘電性 (2011)
  • Author(s): Taras Kolodiazhnyi、橘信
  • Journal Title: 固体物理 46 Pages: 41-47
  • Peer Reviewed
• [Journal Article] Persistence of ferroelectricity in BaTiO_3 through the insulator-metal transition (2010)
  • Author(s): T.Kolodiazhnyi, M.Tachibana, H.Kawaji, J.Hwang, E.Takayama-Muromachi
  • Journal Title: Physical Review Letters 104
  • Peer Reviewed
• [Journal Article] Thermal properties of Cd_2Re_2O_7 and Cd_2Nb_2O_7 at the structural transition (2010)
  • Author(s): Makoto Tachibana, Naoya Taira, Hitoshi Kawaji, Eiji Takayama-Muromachi
  • Journal Title: Physical Review B 82 Pages: 54108-54108
  • Peer Reviewed
• [Journal Article] リラクサー強誘電体のナノスケール分極構造とガラス的熱物性 (2010)
  • Author(s): 橘信
  • Journal Title: 日本物理学会誌 65 Pages: 699-703
  • Peer Reviewed
• [Journal Article] Thermal properties of Cd_2Re_2O_7 and Cd_2Nb_2O_7 at the structural phase transitions (2010)
  • Author(s): Makoto Tachibana
  • Journal Title: Physical Revew B Volume: 82
  • Peer Reviewed
• [Journal Article] リラクサー強誘電体のナノスケール分極構造とガラス的熱物性 (2010)
  • Author(s): 橘信
  • Journal Title: 日本物理学会誌 Volume: 65 Pages: 699-703
  • Peer Reviewed
• [Journal Article] Persistence of ferroelectricity in BaTiO_3 through the insulator-metal transition (2010)
  • Author(s): T.Kolodiazhnyi
  • Journal Title: Physical Review Letters Volume: 104
  • Peer Reviewed
• [Journal Article] Thermal signatures of nanoscale inhomogeneities and ferroelectric order in [PbZn_1/3Nb_2/3O_3]_1-x[PbTiO_3]_x (2009)
  • Author(s): Makoto Tachibana, Kenta Sasame, Hiroshi Kawaji, Tooru Atake, Eiji Takayama-Muromachi
  • Journal Title: Physical Revew B 80
  • Peer Reviewed
• [Journal Article] Thermal conductivity and heat capacity of the relaxor ferroelectric [PbMg_1/3Nb_2/3O_3]_1-x[PbTiO_3]_x (2009)
  • Author(s): Makoto Tachibana, Eiji Takayama-Muromachi
  • Journal Title: Physical Revew B 79
  • Peer Reviewed
• [Journal Article] Thermal signatures of nanoscale inhomogeneities and ferroelectric order in [PbZn_<1/3>Nb_<2/3>O_3]_<1-x>[PbTiO_3]_x (2009)
  • Author(s): 橘信
  • Journal Title: Physical Revew B 80
  • Peer Reviewed
• [Journal Article] 強相関電子系遷移金属酸化物における特異な電子・磁気相図の熱力学的研究 (2009)
  • Author(s): 橘信
  • Journal Title: 熱測定 36 Pages: 189-196
  • NAID: 10025613041
  • Peer Reviewed
• [Journal Article] Thermal conductivity and heat capacity of the relaxor ferroelectrics [PbMg1/3Nb2/3O3]1-x[pbTiO3]x (2009)
  • Author(s): Makoto Tachibana
  • Journal Title: Physical Revew B (Eapid Communication) 79
  • Peer Reviewed
• [Journal Article] Thermal conductivity of perovskite ferroelectrics (2008)
  • Author(s): Makoto Tachibana, Taras Kolodiazhnyi, Eiji Takayama-Muromachi
  • Journal Title: Appl.Phys.Lett. 93
• [Journal Article] Thermal conductivity of colossal magnetoresistive manganites (La_1-xNd_x)_0.7Pb_0.3MnO_3 (2008)
  • Author(s): Makoto Tachibana, Eiji Takayama-Muromachi
  • Journal Title: Appl.Phys.Lett. 92
• [Journal Article] Thermal conductivity of colossal magnetoresistive manganites (La1-xNdx)0.7Pb0.3MnO3 (2008)
  • Author(s): Makoto Tachibana
  • Journal Title: Applied Physics Letters 92
  • Peer Reviewed
• [Journal Article] Thermal conductivity of perovskite ferroelectrics (2008)
  • Author(s): Makoto Tachibana
  • Journal Title: Applied Physics Letters 93
  • Peer Reviewed
• [Presentation] Low temperature thermal properties of relaxor ferroelectrics (2010)
  • Author(s): Makoto Tachibana, Eiji Takayama-Muromachi
  • Organizer: 21st IUPAC International Conference on Chemical Thermodynamics
  • Place of Presentation: Tsukuba Epochal.
  • Year and Date: 2010-08-01
• [Presentation] Low-temperature thermal properties of relaxor ferroelectrics (2010)
  • Author(s): Makoto Tachibana
  • Organizer: 21st IUPAC International Conference on Chemical Thermodynamics
  • Place of Presentation: Tsukuba, Epochal Center
  • Year and Date: 2010-08-01
• [Presentation] Glasslike Thermal Properties of Lead-based Relaxor Ferroelectrics (2010)
  • Author(s): Makoto Tachibana
  • Organizer: The 10th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity
  • Place of Presentation: Yokohama, Tokyo Institute of Technology
  • Year and Date: 2010-06-21
• [Presentation] Glasslike Thermal Properties of Lead-based Relaxor Ferroelectrics (2010)
  • Author(s): Makoto Tachibana, Eiji Takayama-Muromachi
  • Organizer: The 10th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity
  • Place of Presentation: Tokyo Institute of Technology, Yokohama campus.
  • Year and Date: 2010-06-20
• [Presentation] Chemical control of the properties of perovskite oxides (2010)
  • Author(s): Makoto Tachibana
  • Organizer: American Physical Society March Meeting 2010
  • Place of Presentation: Portland, Convention Center.
  • Year and Date: 2010-03-18
• [Presentation] Chemical control of the properties of perovskite oxides (2010)
  • Author(s): 橘信
  • Organizer: American Physical Society March Meeting 2010
  • Place of Presentation: Portland Convention Center
  • Year and Date: 2010-03-18
• [Presentation] リラクサー強誘電体Pb(Mg_1/3Nb_2/3)O_3-PbTiO_3の熱伝導率と熱容量 (2009)
  • Author(s): 橘信、室町英治
  • Organizer: 第45回熱測定討論会
  • Place of Presentation: 首都大学東京八王子キャンパス
  • Year and Date: 2009-09-28
• [Presentation] Pb(Zn1/3Nb2/3)O3-PbTiO3の比熱と熱伝導率 (2009)
  • Author(s): 橘信
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学髪黒キャンパス
  • Year and Date: 2009-09-27
• [Presentation] Pb(Zn_1/3Nb_2/3)O_3-PbTiO_3の比熱と熱伝導率 (2009)
  • Author(s): 橘信、室町英治
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学髪黒キャンパス
  • Year and Date: 2009-09-25
• [Presentation] PPMSを使った強相関系化合物の物質探索 (2009)
  • Author(s): 橘信
  • Organizer: 第45回熱測定ワークショップ「緩和法による熱測定の現状と展望」
  • Place of Presentation: 大阪大学豊中キャンパス
  • Year and Date: 2009-07-24
• [Presentation] Pb(Mg1/3Nb2/3)O3-PbTiO3の熱伝導率と低温比熱 (2009)
  • Author(s): 橘信
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 東京立教大学
  • Year and Date: 2009-03-30
• [Presentation] Pb(Mg_1/3Nb_2/3)O_3-PbTiO_3の熱伝導率と低温比熱 (2009)
  • Author(s): 橘信、室町英治
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教学院池袋キャンパス
  • Year and Date: 2009-03-24
• [Presentation] Low-temperature thermal conductivity and heat capacity of ferroelectric perovskites (2008)
  • Author(s): 橘信
  • Organizer: The 4th International Symposium on the New Frontiers of Thermal Studies of Materials
  • Place of Presentation: 横浜情報文化センター
  • Year and Date: 2008-12-01
• [Presentation] Low-temperature thermal conductivity and heat capacity of ferroelectric perovskites (2008)
  • Author(s): Makoto Tachibana, Taras Kolodiazhnyi, Eiji Takayama-Muromachi
  • Organizer: The 4th International Symposium on the New Frontiers of Thermal
  • Place of Presentation: Yokohama.
  • Year and Date: 2008-11-30
• [Presentation] ペロブスカイト型強誘電体の熱伝導率と低温比熱 (2008)
  • Author(s): 橘信
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 盛岡岩手大学
  • Year and Date: 2008-09-22
• [Presentation] ペロブスカイト型強誘電体の熱伝導率と低温比熱 (2008)
  • Author(s): 橘信、Taras Kolodiazhnyi、室町英治
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学上田キャンパス
  • Year and Date: 2008-09-20
• [Remarks] ホームページ等
  • URL: http://samurai.nims.go.jp/TACHIBANA_Makoto-j.html
• [Remarks]
  • URL: http://samurai.nims.go.jp/TACHIBANA_Makoto-j.html