Electrical Properties of Transition Metal Oxychalcogenides with Two Dimensional Lattice

• Project/Area Number: 15K05441
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic chemistry
• Research Institution: Hokkaido University
• Principal Investigator: Wakeshima Makoto 北海道大学, 理学研究院, 准教授 (10292046)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 二次元正方格子 / 磁性 / 遷移金属オキシカルコゲナイド / オキシカルコゲナイド / 遷移金属 / 正方格子 / 複合アニオン

Outline of Final Research Achievements

Quinary iron oxyselenide was synthesized by a solid-state reaction. In this compound, Cu ions are coordinated by four selenide ions, forming CuSe layers, and Fe ions are coordinated by five oxide ions, forming Fe-O layers with corner-sharing the FeO5 pyramids. These CuSe and Fe-O layers with square lattices stack alternately along the c-axis.
The Cu and Fe ions are in the monovalent and trivalent states, respectively, and the Fe ion shows the two dimensional magnetic ordering below room temperature.
Through powder neutron diffraction measurements, it was found that the Fe and Cu ions occupy the crystallographically independent sites and that the Fe ions have a long-range magnetic ordering at low temperatures.

Research Products

• [Journal Article] Crystal structures, magnetic properties, and DFT calculation of B-site defected 12L-perovskites Ba2La2MW2O12 (M = Mn, Co, Ni, Zn) (2017)
  • Author(s): Yoshihiro Doi, Makoto Wakeshima, Keitaro Tezuka, Yue Jin Shan, Kenji Ohoyama, Sanghyun Lee, Shuki Torii, Takashi Kamiyama, and Yukio Hinatsu
  • Journal Title: Journal of Physics: Condensed Matter Volume: 29 Issue: 36 Pages: 3658021-11
  • DOI: 10.1088/1361-648x/aa7c9b
  • NAID: 120006517683
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetic Properties of the Melilite-type Oxysulfide Sr2MGe2S6O: Magnetic Interactions Enhanced by Anion Substitution (2017)
  • Author(s): T. Endo, Y. Doi, M. Wakeshima, K. Suzuki, Y. Matsuo, K. Tezuka, T. Otsuki, Y. J. Shan and Y. Hinatsu
  • Journal Title: Inorg. Chem. Volume: 56 Issue: 5 Pages: 2459-2466
  • DOI: 10.1021/acs.inorgchem.6b02505
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Chemical Vapor Dposition of NbS2 from a Chloride Source with H2 Flow: Orientation Control of Ultrathin Crystals Directly Grown on SiO2/Si Substrate and Charge Wave Transition (2016)
  • Author(s): akashi Yanase, Sho Watanabe Mengting Weng, Makoto Wakeshima, Yukio Hinatsu, Taro Nagahama, Toshihiro Shimada
  • Journal Title: Crystal Growth & design Volume: 16 Issue: 8 Pages: 4467-4472
  • DOI: 10.1021/acs.cgd.6b00601
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 低次元構造を持つPbMn2Ni6Te3O18型化合物の新規合成と物性評価 (2018)
  • Author(s): 溝口 誠祥、土井 貴弘、分島 亮、日夏 幸雄
  • Organizer: 第56回セラミックス基礎科学討論会
• [Presentation] 三元系ロジウムカルコゲナイドの電気的，磁気的性質 (2016)
  • Author(s): 佐藤孝憲、分島亮、日夏幸雄
  • Organizer: 日本セラミックス協会 第29回秋季シンポジウム
  • Place of Presentation: 広島大学(広島県東広島市)
  • Year and Date: 2016-09-07
• [Presentation] Crystal Structures and Magnetic Properties of New Quasi-one-dimensional Rare Earth Molybdenum Oxides (2016)
  • Author(s): Makoto Wakeshima
  • Organizer: Rare Earths 2016
  • Place of Presentation: 北海道大学(北海道札幌市)
  • Year and Date: 2016-06-06
  • Int'l Joint Research