- Address
- 305-0044 茨城県つくば市並木1-1 [アクセス]
研究内容
- Keywords
Multiferroic, High pressure, Memory elements
- Multiferroic and ferroelectric materials.
Mutriferroics are an interesting class of materials from viewpoints of application and basic physics. In multiferroics, two or all three of (anti)ferroelectricity, (anti)ferromagnetism, and ferroelasticity are observed in the same phase. We recently investigated ferroelectric, magnetic, and multiferroic properties of BiMO3 and PbMO3 prepared at high pressure of 6 GPa. Even in these simple systems we could find new compounds such as PbVO3, BiAlO3, BiGaO3, BiInO3, and 'BiVO3'. Some of them show promising ferroelectric properties. We could also clarify structural and magnetic properties of BiScO3, BiMnO3, and BiCrO3. In a very adaptive structural type of β-Ca3(PO4)2 that allows different substitution in all sublattices, ferroelectric and antiferroelectric properties were found depending on the cation compositions, e.g., Sr9Lu(VO4)7 and Ca9Fe(PO4)7 are ferroelectric and Sr9In(PO4)7 and Sr9NiLi(PO4)7 are antiferroelectric.
- Low-dimensional magnets.
One of the best-known so far one-dimensional Heisenberg S = 1/2 antiferromagnet was discovered, Sr2Cu(PO4)2. The importance of super-superexchange interactions in determination of magnetic lattice was demonstrated in a large number of compounds, e.g., MCuP2O7 (M = Ca, Sr, Ba, and Pb) and MCu2(PO4)2 (M = Sr and Pb). New spin-gap systems were found (MCu2(PO4)2 and Cu2PO4OH).
出版物2004年以降のNIMS所属における研究成果や出版物を表示しています。
論文
- Andreas Dönni, Vladimir Y. Pomjakushin, Lei Zhang, Kazunari Yamaura, Alexei A. Belik. Magnetic properties and ferrimagnetic structures of Mn self-doped perovskite solid solutions (Ho1−xMnx)MnO3. Journal of Alloys and Compounds. 857 (2021) 158230 10.1016/j.jallcom.2020.158230
- P A Agzamova, A A Belik, S V Streltsov. Structural stability of CuAl2O4 under pressure. Journal of Physics: Condensed Matter. 33 [3] (2021) 035403 10.1088/1361-648x/abba68
- Jie Chen, Xiao Wang, Zhiwei Hu, Liu Hao Tjeng, Stefano Agrestini, Manuel Valvidares, Kai Chen, Lucie Nataf, Francois Baudelet, Masahiro Nagao, Yoshiyuki Inaguma, Alexei A. Belik, Yoshihiro Tsujimoto, Yoshitaka Matsushita, Taras Kolodiazhnyi, Raimundas Sereika, Masahiko Tanaka, Kazunari Yamaura. Enhanced magnetization of the highest- TC ferrimagnetic oxide Sr2CrOsO6. Physical Review B. 102 [18] (2020) 10.1103/physrevb.102.184418
会議録
- Iana S. Glazkova, Alexey A. Belik, Alexey V. Sobolev, Igor A. Presniakov. 57Fe Mössbauer investigation of multiferroics BiMn0.9657Fe0.04O3 and BiMn0.7Fe0.3O3. AIP CONFERENCE PROCEEDINGS. 2014
- Alexey Sobolev, Igor Presniakov, Vyacheslav Rusakov, Alexey Belik, Mikhail Matsnev, Dmitry Gorchakov, Iana Glazkova. Mössbauer investigations of hyperfine interactions features of 57Fe nuclei in BiFeO3 ferrite. AIP CONFERENCE PROCEEDINGS. 2014
- I. Presniakov, V. Rusakov, A. Sobolev, A. Gapochka, M. Matsnev, A. A. Belik. 57Fe Mössbauer study of new multiferroic AgFeO2. HYPERFINE INTERACTIONS. 2014, 9999-9999
口頭発表
- BELIK, Alexei, R. D. Johnson, L. Ding, D. D. Khalyavin, P. Manuel, F. Orlandi, YI, Wei, ZHANG, Lei, TERADA, Noriki, YAMAURA, Kazunari. Unusual Magnetic Properties and Spin Structures in Quadruple and Simple Exotic Perovskites. VII Euro-Asian Symposium “Trends in Magnetism” (EASTMAG-2019). 2019
- CHEN, Jie, H. L. Feng, MATSUSHITA, Yoshitaka, BELIK, Alexei, TSUJIMOTO, Yoshihiro, KATSUYA, Yoshio, TANAKA, Masahiko, M.-R. Li, H. Liang, L. Zheng, YAMAURA, Kazunari. High-pressure synthesis, crystal structure, and magnetic properties of Ba3CuOs2O9. 32nd European Crystal. Meeting (ECM 32). 2019
- BELIK, Alexei. Unusual Spin Structures in Quadruple and Simple Exotic Perovskites. European Conference on Neutron Scattering (ECNS 2019). 2019
その他の文献
- Masaki AZUMA, Kengo OKA, Masahiko TSUJIMOTO, Takashi SAITO, Seiji SODA, Yuichi SHIMAKAWA, Mikio TAKANO, Seiji NIITAKA, Alexei Belik, Shintaro ISHIWATA. Structure Science in Bi, Pb-3d Transition Metal Perovskites. Nihon Kessho Gakkaishi. 49 [6] (2007) 335-340 10.5940/jcrsj.49.335
- 東 正樹, 幸坂祐生, 山田幾也, ベリック アレクセイ, 高木英典, 高野幹夫. 高圧下での酸化物単結晶育成と新物質探索. OYO BUTURI. 74 [1] (2005) 27-31