Structural analysis of double borates with rare-earth and alkali-earth element by X-ray diffraction

• Project/Area Number: 23760003
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Tohoku University
• Principal Investigator: SIMURA Rayko 東北大学, 金属材料研究所, 助教 (90420009)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 複ホウ酸塩 / Ｘ線構造解析 / 希土類元素 / 希土類ほう酸塩 / 光学材料 / X線異常散乱 / 結晶成長 / X線構造解析

Research Abstract

Basic features of A3R(BO3)3(A=Ba; R=Y, Sm-Yb) double borates were investigated with high-temperature X-ray structural analysis; R=Sm-Tb show H phase, R=Tm-Yb show L phase, and R=Dy,Ho,Y show H phase in high temperature and L phase in low temperature. Three cation sites (3a,3b, and 18f) in Sr3Y(BO3)3 were investigated by X-ray structural analysis with anomalous scattering, and the sites 3a was confirmed to be occupied by Y, 3b by Sr, and 18f by Sr/Y, suggesting the rare-earth doped element occupies 18f. Single crystal of Ce doped A3R(BO3)3 was grown by FZ method and the scintillation signal of the crystal excited by alpha-particles were clearly observed, suggesting the application as scintillator crystals.

Research Products

• [Journal Article] Site Determination of Sr in Sr_3YB_3O_3 Crystals by Anomalous X-ray Scattering (2014)
  • Author(s): R. Simura and K. Sugiyama
  • Journal Title: Journal of Physics : Conference Series Volume: 502 Pages: 012028-012028
  • DOI: 10.1088/1742-6596/502/1/012028
• [Journal Article] Site Determination of Sr in Sr3YB3O9 Crystals by Anomalous X-ray Scattering (2014)
  • Author(s): R Simura and K Sugiyama
  • Journal Title: IOP conference series Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Growth of Ce-doped Ba3Gd(BOe)3 and Sr3Gd(BO3)3 single crystals by micro-pulling-down method and analysis of luminescence propertes (2013)
  • Author(s): R. Simura, T. Yagi, K. Sugiyama, T. Yanagida, A. Yoshikawa
  • Journal Title: Journal of Crystal Growth Volume: 362 Pages: 145-148
  • DOI: 10.1016/j.jcrysgro.2011.11.086
  • Peer Reviewed
• [Journal Article] Valence state and scintillation properies of Ce-doped Sr3Y(BO3)3 crystal (2013)
  • Author(s): R. Simura, S. Kawai, K. Sugiyama, T. Yanagida, T. Sugawara, T. Shishido, A. Yoshikawa
  • Journal Title: Journal of Crystal Growth Volume: 362 Pages: 296-299
  • DOI: 10.1016/j.jcrysgro.2011.11.089
  • Peer Reviewed
• [Journal Article] Valence state and scintillation properies of Ce-doped Sr3Y(BO3)3 crystal. (2013)
  • Author(s): R. Simura, S. Kawai, K. Sugiyama, T. Yanagida, T. Sugawara, T. Shishido, A. Yoshikawa
  • Journal Title: Journal of Crystal Growth Volume: 362 Pages: 296-299
  • Peer Reviewed
• [Journal Article] Growth of Ce-doped Ba3Gd(BO3)3 and Sr3Gd(BO3)3 single crystals by micro-pulling-down method and analysis of luminescence properties (2012)
  • Author(s): Simura, R., Yagi, T., Sugiyama, K., Yanagida, T., Yoshikawa, A.
  • Journal Title: Journal of Crystal Growth Volume: in press
  • Peer Reviewed
• [Journal Article] Valence state of dopant and scintillation properties of Ce-doped Sr 3Y(BO 3) 3 crystal (2012)
  • Author(s): Simura, R., Kawai, S., Sugiyama, K., Yanagida, T., Shishido, T., Yoshikawa, A.
  • Journal Title: Journal of Crystal Growth Volume: in press
  • Peer Reviewed
• [Presentation] Crystal site determination of Sr in Sr_3YB_3O_9 by the anomalous X-ray scattering (2013)
  • Author(s): R. Simura and K. Sugiyama
  • Organizer: The 1^<st > International Conference on Light and Particle Beams in Materials Science
  • Place of Presentation: Tsukuba, Japan
• [Presentation] Crystal site determination of Sr in Sr3YB3O9 by the anomalous X-ray scattering method (2013)
  • Author(s): R Simura and K Sugiyama
  • Organizer: Light and Particle Beams in Materials Science 2013
  • Place of Presentation: Tsukuba, Japan
• [Presentation] 希土類元素=アルカリ土類金属系の新規複ホウ酸塩結晶(Sr_3Yb(_6 BO_3) _8)の構造解析 (2012)
  • Author(s): 河合祥平、志村玲子
  • Organizer: 平成24年度日本結晶学会年会
  • Place of Presentation: 仙台
• [Presentation] X線異常散乱を利用した単結晶X線構造解析による結晶原子席の特定~アルカリ土類金属=希土類ホウ酸塩結晶の例~ (2012)
  • Author(s): 志村玲子、杉山和正
  • Organizer: 日本鉱物科学会2012年年会
  • Place of Presentation: 京都
• [Presentation] 希土類元素＝アルカリ土類金属系の新規複ホウ酸塩結晶（Sr3Yb（6 BO3）8）の構造解析 (2012)
  • Author(s): 河合祥平、志村玲子、杉山和正
  • Organizer: 平成24年度日本結晶学会年会
  • Place of Presentation: 仙台
• [Presentation] X線異常散乱を利用した単結晶X線構造解析 による 結晶原子席の特定 ～アルカリ土類金 属＝希土類ホウ酸塩結晶の例～ (2012)
  • Author(s): 志村玲子、杉山和正
  • Organizer: 日本鉱物科学会2012年年会
  • Place of Presentation: 京都
• [Presentation] 発光材料応用バリウム希土類複ホウ酸塩(Ba_3REB_3O_3)の結晶構造と相変態 (2011)
  • Author(s): 河合祥平、志村玲子、杉山和正、柳田孝之、吉川彰
  • Organizer: 第41回結晶成長国内会議
  • Place of Presentation: つくば市
• [Presentation] Growth and Optical Properties of Ce-doped (Ba or Sr) _3Gd(BO_3) _3 (2011)
  • Author(s): R. Simura, T. Yagi, K. Sugiyama, T. Yanagida, and A. Yoshikawa
  • Organizer: The fifth Asian conference on Crystal Growth and Crystal Technology
  • Place of Presentation: SunTec, Singapore
• [Presentation] Growth and Optical Properties of Ce-doped Strontium Yttorium Double Borate (2011)
  • Author(s): R. Simura, S. Kawai, K. Sugiyama, T. Yanagida, T. Shishido, and A. Yoshikawa
  • Organizer: The fifth Asian conference on Crystal Growth and Crystal Technology
  • Place of Presentation: SunTec, Singapore
• [Presentation] Growth and Optical Properties of Ce-doped (Ba or Sr)3Gd(BO3)3 (2011)
  • Author(s): Simura, R., Yagi, T., Sugiyama, K., Yanagida, T., Yoshikawa, A.
  • Organizer: The fifth Asian conference on Crystal Growth and Crystal Technology
  • Place of Presentation: SunTec,Singapore
• [Presentation] 発光材料応用バリウム希土類複ホウ酸塩(Ba3REB3O9)の結晶構造と相変態 (2011)
  • Author(s): 河合祥平、志村玲子、杉山和正、柳田孝之、吉川彰
  • Organizer: 第41回結晶成長国内会議(NCCG-41)
  • Place of Presentation: 茨城県つくば市