Search for oxide hypermaterials using a high-pressure synthesis method

• Project Area: Hypermaterials: Inovation of materials scinece in hyper space
• Project/Area Number: 20H05276
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: National Institute for Materials Science
• Principal Investigator: 山浦 一成 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, グループリーダー (70391216)
• Project Period (FY): 2020-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000); Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
• Keywords: 酸化物準結晶 / 高圧合成 / 準結晶 / 酸化物

Outline of Research at the Start

1980年代に合金系で発見された準結晶は、2010代になって超伝導や反強磁性や量子臨界現象が次々と発見され、その機能性に注目が集まっている。さらに材料としての発展性を担保するためには酸化物系の準結晶（焼結体や単結晶などのバルク体）の開拓が必須と思われるが、その合成は困難を極めている。いまだに成功例がない。継続的な実験努力が求められている。本課題では、高圧合成法を主に活用して酸化物系準結晶のバルク体の合成に挑戦する。

Outline of Annual Research Achievements

亜酸化物は、電気陰性度が小さな金属元素同士が多数結合した金属クラスターと、そのクラスター間に挿入された酸素を特徴とする特異な酸化物として研究されてきた経緯がある。かつてはCs11O3やRb9O2のように大気中で不安定な亜酸化物が多かったが、近年では大気中でも安定なTiを含む3元系亜酸化物Ti7Ga2O6， Ti3GaO， Ti5Ga3Oが合成され (H. Yamane, S. Amano, Inorg. Chem. 57, 9941, 2018)、さらには新規超伝導体Nb5Ir3O （Tc＝10.5 K）とTi4M2O (M = Co, Rh, Ir) (Tc＝2.3～5.4 K)が合成されるなど新物質開発が進展している (K.Y. Ma, et al. Chem. Mater. 23, 8722, 2021)。
我々は、亜酸化物のクラスター構造的な特徴に着目して物質探索を進め、正20面体的な特徴を備える、かつ大気中でも安定な新規亜酸化物の創製を目指して、特にTi系亜酸化物の周辺物質・関連物質の合成、および新物質の探索を進めた。実験手段として、新物質合成に有効な高圧合成法を用いた。昨年度に続き、Ti-Ga-O系の亜酸化物の高圧環境下での合成実験を進め、さらに単一ステップから複数ステップの熱処理へと実験条件を最適化し、さらにまたGeや他の金属元素との固溶体の合成を進めた。これまでのところ明確な特徴を備えた新物質や、重要な周辺物質・関連物質の合成には至らなかったが、第2期の公募研究課題として探索を継続する。
なお探索の過程で、酸化物準結晶と直接関係ないが、Ba-Ti-O系の新規高圧相を合成したため、その特異な構造的特徴と併せて学術論文として公表する準備を進めた。

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Paul Scherrer Institute/ETH Zurich(スイス)
• [Int'l Joint Research] the State University of New Jersey/Oak Ridge National Laboratory/University of Texas at Austin(米国)
• [Int'l Joint Research] STFC RUTHERFORD APPLETON LABORATORY/UNIVERSITY COLLEGE LONDON/UNIVERSITY OF OXFORD(英国)
• [Int'l Joint Research] INSTITUTE OF PHYSICS CAS/SHANGHAITECH UNIVERSITY(中国)
• [Int'l Joint Research] OAK RIDGE NATIONAL LABORATORY(米国)
• [Int'l Joint Research] TECHNISCHE UNIVERSITAT DRESDEN(ドイツ)
• [Int'l Joint Research] PAUL SCHERRER INSTITUTE(スイス)
• [Journal Article] Melting of magnetic order in NaOsO3 by femtosecond laser pulses (2022)
  • Author(s): Giorgianni, F.; Burian, M.; Gurung, N.; Kubli, M.; Esposito, V.; Staub, U.; Beaud, P.; Johnson, S. L.; Windsor, Y. W.; Rettig, L.; Ozerov, D.; Lemke, H.; Saha, S.; Pressacco, F.; Collins, S. P.; Togashi, T.; Katayama, T.; Owada, S.; Yabashi, M.; Yamaura, K.; Tanaka, Y.; Scagnoli, V.
  • Journal Title: Phys. Rev. B Volume: 105 Issue: 15 Pages: 155147-155147
  • DOI: 10.1103/physrevb.105.155147
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multiple magnetic transitions and complex magnetic behaviour of the perovskite manganite NdMn7O12 (2022)
  • Author(s): Belik, A. A.; Liu, R.; Zhang, L.; Terada, N.; Tanaka, M.; Yamaura, K.
  • Journal Title: J. Solid State Chem. Volume: 309 Pages: 122969-122969
  • DOI: 10.1016/j.jssc.2022.122969
  • Peer Reviewed
• [Journal Article] Strongly correlated electrons in the ferroelectric metal LiOsO3 (2021)
  • Author(s): Zhou, J. S.; Li, X.; He, J. M.; Chen, J.; Yamaura, K.
  • Journal Title: Phys. Rev. B Volume: 104 Issue: 11
  • DOI: 10.1103/physrevb.104.115130
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetic Properties of S = 1/2 Distorted Kagome Antiferromagnet CdCu3(OH)6Cl2 with Low-Symmetry Orbital Arrangement (2021)
  • Author(s): Yoshida Hiroyuki K.、Noguchi Naoya、Ishii Yuto、Oda Migaku、Chen Jie、Yamaura Kazunari、Yamashita Satoshi、Nakazawa Yasuhiro、Kida Takanori、Narumi Yasuo、Hagiwara Masayuki
  • Journal Title: Journal of the Physical Society of Japan Volume: 90 Issue: 4 Pages: 044714-044714
  • DOI: 10.7566/jpsj.90.044714
  • NAID: 40022540074
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] La3Ga3Ge2S3O10: An Ultraviolet Nonlinear Optical Oxysulfide Designed by Anion-Directed Band Gap Engineering (2021)
  • Author(s): Yan, H.; Matsushita, Y.; Yamaura, K.; Tsujimoto, Y.
  • Journal Title: Angew. Chem. Int. Ed. Volume: 60 Issue: 51 Pages: 26561-26565
  • DOI: 10.1002/anie.202112692
  • Peer Reviewed
• [Journal Article] Magnetic properties of the Shastry-Sutherland lattice material BaNd2ZnO5 (2021)
  • Author(s): Ishii Yuto、Sala G.、Stone M. B.、Garlea V. O.、Calder S.、Chen Jie、Yoshida Hiroyuki K.、Fukuoka Shuhei、Yan Jiaqiang、dela Cruz Clarina、Du Mao-Hua、Parker David S.、Zhang Hao、Batista Cristian D.、Yamaura Kazunari、Christianson A. D.
  • Journal Title: Physical Review Materials Volume: 5 Issue: 6 Pages: 064418-064418
  • DOI: 10.1103/physrevmaterials.5.064418
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Probing spin fluctuations in NaOsO3 by muon spin rotation and NMR spectroscopy (2021)
  • Author(s): Gurung, N.; Wang, C.; Bingham, N. S.; Verezhak, J. A. T.; Yamaura, K.; Allodi, G.; Forino, P. C.; Sanna, S.; Luetkens, H.; Scagnoli, V.
  • Journal Title: J. Phys.: Condens. Matter. Volume: 33 Issue: 33 Pages: 335802-335802
  • DOI: 10.1088/1361-648x/ac06eb
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Antiferromagnetic Order Breaks Inversion Symmetry in a Metallic Double Perovskite, Pb2NiOsO6 (2021)
  • Author(s): Feng, H. L.; Kang, C.-J.; Manuel, P.; Orlandi, F.; Su, Y.; Chen, J.; Tsujimoto, Y.; Hadermann, J.; Kotliar, G.; Yamaura, K.; McCabe, E. E.; Greenblatt, M.
  • Journal Title: Chem. Mater. Volume: 33 Issue: 11 Pages: 4188-4195
  • DOI: 10.1021/acs.chemmater.1c01032
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Temperature evolution of 3d- and 4f-electron magnetic ordering in the ferrimagnetic Mn self-doped perovskite (Yb0.667Mn0.333)MnO3 (2021)
  • Author(s): Donni, A.; Pomjakushin, V. Y.; Zhang, L.; Yamaura, K.; Belik, A. A.
  • Journal Title: J. Phys.: Condens. Matter. Volume: 33 Issue: 20 Pages: 205804-205804
  • DOI: 10.1088/1361-648x/abe516
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetic properties and ferrimagnetic structures of Mn self-doped perovskite solid solutions (Ho1-xMnx)MnO3 (2021)
  • Author(s): Donni Andreas、Pomjakushin Vladimir Y.、Zhang Lei、Yamaura Kazunari、Belik Alexei A.
  • Journal Title: Journal of Alloys and Compounds Volume: 857 Pages: 158230-158230
  • DOI: 10.1016/j.jallcom.2020.158230
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ferrimagnetic and relaxor ferroelectric properties of R2MnMn(MnTi3)O12 perovskites with R = Nd, Eu, and Gd (2021)
  • Author(s): Liu Ran、Tanaka Masahiko、Mori Hiromu、Inaguma Yoshiyuki、Yamaura Kazunari、Belik Alexei A.
  • Journal Title: Journal of Materials Chemistry C Volume: 9 Issue: 3 Pages: 947-956
  • DOI: 10.1039/d0tc04463f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Flux Crystal Growth, Crystal Structure, and Magnetic Properties of a Ternary Chromium Disulfide Ba9Cr4S19 with Unusual Cr4S15 Tetramer Units (2021)
  • Author(s): Yan Hong、Matsushita Yoshitaka、Chikamatsu Akira、Hasegawa Tetsuya、Yamaura Kazunari、Tsujimoto Yoshihiro
  • Journal Title: ACS Omega Volume: 6 Issue: 10 Pages: 6842-6847
  • DOI: 10.1021/acsomega.0c06017
  • Peer Reviewed / Open Access
• [Journal Article] Enhanced magnetization of the highest-TC ferrimagnetic oxide Sr2CrOsO6 (2020)
  • Author(s): Chen Jie、Wang Xiao、Hu Zhiwei、Tjeng Liu Hao、Agrestini Stefano、Valvidares Manuel、Chen Kai、Nataf Lucie、Baudelet Francois、Nagao Masahiro、Inaguma Yoshiyuki、Belik Alexei A.、Tsujimoto Yoshihiro、Matsushita Yoshitaka、Kolodiazhnyi Taras、Sereika Raimundas、Tanaka Masahiko、Yamaura Kazunari
  • Journal Title: Physical Review B Volume: 102 Issue: 18 Pages: 184418-184418
  • DOI: 10.1103/physrevb.102.184418
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-pressure synthesis, crystal structure, and magnetic properties of the Shastry-Sutherland-lattice oxides BaLn2ZnO5 (Ln = Pr, Sm, Eu) (2020)
  • Author(s): Ishii Yuto, Chen Jie, Yoshida Hiroyuki K., Oda Migaku, Christianson Andrew D., Yamaura Kazunari
  • Journal Title: Journal of Solid State Chemistry Volume: 289 Pages: 121489-121489
  • DOI: 10.1016/j.jssc.2020.121489
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetically induced metal-insulator transition in Pb2CaOsO6 (2020)
  • Author(s): Jacobsen Henrik、Feng Hai L.、Princep Andrew J.、Rahn Marein C.、Guo Yanfeng、Chen Jie、Matsushita Yoshitaka、Tsujimoto Yoshihiro、Nagao Masahiro、Khalyavin Dmitry、Manuel Pascal、Murray Claire A.、Donnerer Christian、Vale James G.、Sala Marco Moretti、Yamaura Kazunari、Boothroyd Andrew T.
  • Journal Title: Physical Review B Volume: 102 Issue: 21 Pages: 214409-214409
  • DOI: 10.1103/physrevb.102.214409
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Coupled magnetic and structural phase transitions in the antiferromagnetic polar metal Pb2CoOsO6 under pressure (2020)
  • Author(s): Jiao Yuanyuan、Fang Yue-Wen、Sun Jianping、Shan Pengfei、Yu Zhenhai、Feng Hai L.、Wang Bosen、Ma Hanming、Uwatoko Yoshiya、Yamaura Kazunari、Guo Yanfeng、Chen Hanghui、Cheng Jinguang
  • Journal Title: Physical Review B Volume: 102 Issue: 14 Pages: 144418-144418
  • DOI: 10.1103/physrevb.102.144418
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Emergence of a Magnetostructural Dipolar Glass in the Quadruple Perovskite Dy1-δMn7+δO12 (2020)
  • Author(s): Johnson R.D.、Khalyavin D.D.、Manuel P.、Zhang L.、Yamaura K.、Belik A.A.
  • Journal Title: Physical Review Letters Volume: 125 Issue: 9 Pages: 097601-097601
  • DOI: 10.1103/physrevlett.125.097601
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-Pressure Synthesis, Crystal Structures, and Properties of A-Site Columnar-Ordered Quadruple Perovskites NaRMn2Ti4O12 with R = Sm, Eu, Gd, Dy, Ho, Y (2020)
  • Author(s): Liu Ran、Scatena Rebecca、Khalyavin Dmitry D.、Johnson Roger D.、Inaguma Yoshiyuki、Tanaka Masahiko、Matsushita Yoshitaka、Yamaura Kazunari、Belik Alexei A.
  • Journal Title: Inorganic Chemistry Volume: 59 Issue: 13 Pages: 9065-9076
  • DOI: 10.1021/acs.inorgchem.0c00938
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetically driven loss of centrosymmetry in metallic Pb2CoOsO6 (2020)
  • Author(s): Princep A. J.、Feng H. L.、Guo Y. F.、Lang F.、Weng H. M.、Manuel P.、Khalyavin D.、Senyshyn A.、Rahn M. C.、Yuan Y. H.、Matsushita Y.、Blundell S. J.、Yamaura K.、Boothroyd A. T.
  • Journal Title: Physical Review B Volume: 102 Issue: 10 Pages: 104410-104410
  • DOI: 10.1103/physrevb.102.104410
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effects of magnetic dilution in the ferrimagnetic columnar ordered Sm2MnMnMn4-xTixO12 perovskites (2020)
  • Author(s): Vibhakar Anuradha M.、Khalyavin Dmitry D.、Manuel Pascal、Liu Ran、Yamaura Kazunari、Belik Alexei A.、Johnson Roger D.
  • Journal Title: Physical Review B Volume: 102 Issue: 21 Pages: 214428-214428
  • DOI: 10.1103/physrevb.102.214428
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Static and dynamic spin properties in the quantum triangular lattice antiferromagnet Ag2CoO2 (2020)
  • Author(s): Yoshida H. K.、Dissanayake S. E.、Christianson A. D.、dela Cruz C. R.、Cheng Y.-Q.、Okamoto S.、Yamaura K.、Isobe M.、Matsuda M.
  • Journal Title: Physical Review B Volume: 102 Issue: 2 Pages: 024445-024445
  • DOI: 10.1103/physrevb.102.024445
  • Peer Reviewed / Open Access / Int'l Joint Research