ANDREY LEONOVLEONOV ANDREY
Last Updated :2024/09/02
- 所属・職名
- 大学院先進理工系科学研究科 准教授
- メールアドレス
- leonovhiroshima-u.ac.jp
基本情報
主な職歴
- 2016年12月01日, 2017年03月31日, 広島大学, 大学院理学研究科, 研究員
- 2017年04月01日, 2020年03月31日, 広島大学, 大学院理学研究科, 助教
- 2016年01月01日, 2016年10月15日, グローニンゲン大学(オランダ)ゼルニケ先端材料研究所, ポスドク
- 2015年05月01日, 2015年12月31日, IFW-ドレスデン、理論物理学研究所, ゲストサイエンティスト
- 2012年09月01日, 2015年02月01日, グローニンゲン大学ゼルニケ研究所, ポスドク
- 2012年06月01日, 2012年08月31日, マックスプランク複雑系物理学研究所(ドレスデン), ゲストサイエンティスト
学位
- Dr.rer.nat. (IFW-Dresden)
教育活動
授業担当
- 2024年, 教養教育, 1ターム, Fundamental Chemistry A
- 2024年, 学部専門, セメスター(前期), 卒業研究
- 2024年, 学部専門, セメスター(後期), 卒業研究
- 2024年, 修士課程・博士課程前期, 3ターム, Chiral Topological Solitons
- 2024年, 修士課程・博士課程前期, セメスター(前期), 化学特別演習A
- 2024年, 修士課程・博士課程前期, セメスター(後期), 化学特別演習B
- 2024年, 修士課程・博士課程前期, 年度, 化学特別研究
- 2024年, 博士課程・博士課程後期, 年度, 化学特別研究
研究活動
学術論文(★は代表的な論文)
- Asymmetric isolated skyrmions in polar magnets with easy-plane anisotropy, PHYSICAL REVIEW B, 96巻, 1号, 20170717
- Equilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet, SCIENTIFIC REPORTS, 7巻, 20170808
- Helimagnon Resonances in an Intrinsic Chiral Magnonic Crystal, PHYSICAL REVIEW LETTERS, 119巻, 23号, 20171206
- Skyrmion robustness in noncentrosymmetric magnets with axial symmetry: The role of anisotropy and tilted magnetic fields, PHYSICAL REVIEW B, 96巻, 21号, 20171208
- Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3, PHYSICAL REVIEW B, 97巻, 13号, 20180405
- Crossover of skyrmion and helical modulations in noncentrosymmetric ferromagnets, NEW JOURNAL OF PHYSICS, 20巻, 20180412
- Homogeneous and heterogeneous nucleation of skyrmions in thin layers of cubic helimagnets, Physical Review B, 98巻, pp. 054404, 20180806
- Spin textures induced by quenched disorder in a reentrant spin glass: vortices versus frustrated skyrmions, Physical Review B, 98巻, pp. 014420, 2018
- Crossover of skyrmion and helical modulations in noncentrosymmetric ferromagnets, New Journal of Physics, 20巻, pp. 043017, 2018
- Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3, Physical Review B, 97巻, pp. 134403, 2018
- Spin textures induced by quenched disorder in a reentrant spin glass: Vortices versus "frustrated" skyrmions, PHYSICAL REVIEW B, 98巻, 1号, 20180719
- Homogeneous and heterogeneous nucleation of skyrmions in thin layers of cubic helimagnets, PHYSICAL REVIEW B, 98巻, 5号, 20180806
- Toggle-switch-like crossover between two types of isolated skyrmions within the conical phase of cubic helimagnets, PHYSICAL REVIEW B, 98巻, 6号, 20180823
- ★, New magnetic phase of the chiral skyrmion material Cu2OSeO3, SCIENCE ADVANCES, 4巻, 9号, 201809
- Spintronics via non-axisymmetric skyrmions, Applied Physics Letters, 109巻, 172404号, 2016
- Scaling Study and Thermodynamic Properties of the cubic Helimagnet FeGe, Physical Review B, 94巻, pp. 144424, 2016
- ★, Chiral surface twists and skyrmion stability in nanolayers of cubic helimagnets, Physical Review Letters, 117巻, 087202号, pp. 087202, 2016
- ★, The properties of isolated chiral skyrmions in thin magnetic films, New Journal of Physics, 18巻, 065003号, pp. 065003, 2016
- Skyrmion dynamics under uniaxial anisotropy, Physical Review B, 94巻, 014406号, pp. 014406, 2016
- Internal structure of hexagonal skyrmion lattices in cubic helimagnets, New Journal of Physics, 18巻, 095004号, pp. 095004, 2016
- Three-dimensional chiral skyrmions with attractive interparticle interactions, Journal of Physics: Condensed Matter, 28巻, 35LT01号, pp. 35LT01, 2016
- ★, Multiply periodic states and isolated skyrmions in an anisotropic frustrated magnet, Nature Communications, 6巻, 8275号, pp. 8275, 2015
- Néèl skyrmions in confined geometries and at nonzero temperatures, Physical Review B, 92巻, 134405号, pp. 134405, 2015
- Theory of skyrmion states in liquid crystals, Physical Review E, 90巻, 042502号, 2014
- ★, The quantum origins of skyrmions and half-skyrmions in Cu2OSeO3, Nature Communications, 5巻, 5376号, pp. 5376, 2014
- Skyrmion clusters and conical droplets in bulk helimagnets with cubic anisotropy, PHYSICAL REVIEW B, 99巻, 14号, 20190412
- ★, Real-space observation of skyrmion clusters with mutually orthogonal skyrmion tubes, Physical Review B, 100巻, 104401号, 2019
- ★, Skyrmions and spirals in MnSi under hydrostatic pressure, Physical Review B, 100巻, 054447号, 2019
- ★, Skyrmion instabilities and distorted spiral states in a frustrated chiral magnet, Physical Review B (Rapid Communications), 100巻, 060407(R)号, 2019
- ★, Multiple low-temperature skyrmionic states in a bulk chiral magnet, npj (Nature Partner Journal) Quantum Materials, 4巻, 11号, 2019
- ★, Skyrmion clusters and conical droplets in bulk helimagnets with cubic anisotropy, Physical Review B, 99巻, 144410号, 2019
- Skyrmion instabilities and distorted spiral states in a frustrated chiral magnet, PHYSICAL REVIEW B, 100巻, 6号, 20190820
- Skyrmions and spirals in MnSi under hydrostatic pressure, PHYSICAL REVIEW B, 100巻, 5号, 20190830
- Real-space observation of skyrmion clusters with mutually orthogonal skyrmion tubes, PHYSICAL REVIEW B, 100巻, 10号, 20190903
- Multiple low-temperature skyrmionic states in a bulk chiral magnet, NPJ QUANTUM MATERIALS, 4巻, 20190401
- Skyrmion flop transition and congregation of mutually orthogonal skyrmions in cubic helimagnets, JOURNAL OF PHYSICS-CONDENSED MATTER, 32巻, 18号, 20200501
- Macroscopic manifestation of domain-wall magnetism and magnetoelectric effect in a Neel-type skyrmion host, NPJ QUANTUM MATERIALS, 5巻, 1号, 20200706
- Current-induced shuttlecock-like movement of non-axisymmetric chiral skyrmions, SCIENTIFIC REPORTS, 10巻, 1号, 20200115
- Stability of Néel-type skyrmion lattice against oblique magnetic fields in GaV4S8 and GaV4Se8, Physical Review B, 102巻, 104407号, 2020
- ★, Macroscopic manifestation of domain-wall magnetism and magnetoelectric effect in a Néel-type skyrmion host, npj (Nature Partner Journal) Quantum Materials, 5巻, 44号, 2020
- ★, Current-induced shuttlecock-like movement of non-axisymmetric chiral skyrmions, Scientific Reports, 10巻, 396号, 2020
著書等出版物
- 2021年06月03日, 2021年, 教科書, その他, English, ISBN: 978-0-12-820815-1
招待講演、口頭・ポスター発表等
- 2020年09月15日, 招待, 英語
- Three-dimensional skyrmionic networks in chiral magnets and liquid crystals, 2020年12月01日, 招待, 英語
- Сlusters with mutually orthogonal skyrmion tubes, International Workshop Spintronics SpinPeru-2019, 2019年, 招待, 英語, Cusco (Peru), Cusco (Peru)
- 通常, 日本語
- Homogeneous and heterogeneous nucleation of skyrmions in thin layers of cubic helimagnets and liquid crystals, 14th International Workshop on Magnetism & Superconductivity at the Nanoscale, 2018年, 招待, 英語, Comaruga (Spain)
- Non-axisymmetric chiral skyrmions, International Conference of Magnetism and Spintronics, SolSkyMag-2018, 2018年, 招待, 英語, San Sebastian (Spain)
- The Properties of Isolated Skyrmions in Chiral Magnets and Liquid Crystals, 6th International Conference on Superconductivity and Magnetism, ICSM-2018, 2018年, 招待, 英語, Antalya (Turkey)
- The properties of isolated skyrmions in chiral and frustrated magnets, SkyMag, Challenges for Magnetic Skyrmions, 2017年, 通常, 英語, Paris (France)
- Multi-channel topological edge states: skyrmion dynamics in nanostripes of frustrated magnets, Spin Orbit Coupling and Topology in Low Dimensions, 2016年, 招待, 英語, Spetses, Greece
- Chiral skyrmions: overview of perspectives, International Symposium on Chiral Magnetism, 2018年, 招待, 英語, Nara (Japan)
- Chiral skyrmions in non-centrosymmetric magnets, the International Summer School, 2017年, 招待, 英語, Hiroshima (Japan)
- Introduction into the physics of chiral skyrmions, 通常, 英語, Hiroshima (Japan)
- Introduction into the physics of chiral skyrmions, 2016年, 招待, 英語, Osaka (Japan)
- Skyrmions in frustrated magnets, 2016年, 招待, 英語, Javier Campo, Instituto de Ciencia de Materiales de Aragon, Zaragoza, Spain
- How to tame the chiral skyrmion? Short manual, Intensive discussion workshop on theoretical magnetic skyrmion physics, 招待, 英語, invited by Prof. G. Tatara, Hakone, Japan
- Skyrmion cluster formation and precursor states in cubic chiral and frustrated magnets, Topical meeting of Center for Chiral Science, 2015年, 招待, 英語, invited by Prof. Katsuya Inoue, Hiroshima, Japan
- Theory of skyrmions in chiral and frustrated magnets, 2015年, 招待, 英語, invited by Prof. G. Tatara, RIKEN, Tokyo
- Theory of skyrmions in chiral magnets, 2015年, 招待, 英語, invited by Prof. A. Loidl, Augsburg (Germany)
- Current-induced motion of skyrmions guided by multi-channel edge states, 2015年, 招待, 英語, invited by Prof. I. Kezsmarki, Budapest (Hungary)
- Skyrmions in frustrated magnets, 2014年, 招待, 英語, invited by Prof. Theo Rasing, Radboud University Nijmegen, the Netherlands
- Current-driven motion of frustrated skyrmions, 2014年, 招待, 英語, invited by Prof. R. Duine, Utrecht, the Netherlands
- Physics of skyrmions in confined geometries, 2014年, 招待, 英語, invited by Prof. M. Mostovoy, University of Groningen, the Netherlands
- Skyrmions in chiral and frustrated magnets, 2014年, 招待, 英語, invited by Dr. U. Roessler, Institute for Theoretical Solid State Physics, Dresden, Germany
- Skyrmions in chiral and frustrated magnets, SFB 668 - Kolloquium, Magnetismus vom Einzelatom zur Nanostruktur, 2014年, 招待, 英語, invited by Prof. R. Wiesendanger, University of Hamburg, Hamburg, Germany
- Skyrmions in chiral magnets, 2013年, 招待, 英語, invited by Dr. D. Menzel, TU Braunschweig, Germany
- Skyrmions in chiral and frustrated magnets, 2013年, 招待, 英語, invited by Prof. S. Bluegel, Institut fuer Festkoerperforschung, FZ Juelich, Germany
- Chiral skyrmions in magnets (short overview of essentials), 2012年, 招待, 英語, invited by Prof.B. Idzikowski, Institute of Molecular Physics of the Polish Academy of Sciences, Poznan, Poland
- the properties of isolated chiral skyrmions, 2018年, 招待, 英語, invited by Prof. C. Pappas, Delft, the Netherlands
- Theoretical studies on H-T phase diagrams of chiral magnets, Research Progress Meeting on Chiral Magnets, 2017年, 招待, 英語, Takeo, Japan
- Spintronics via Non-axisymmetric Chiral Skyrmions, Research Progress Meeting on Chiral Magnets, 2017年, 招待, 英語, Takeo, Japan
- Skyrmion dynamics in nanostripes of frustrated magnets, The CMD26 Conference in Groningen, 2016年, 通常, 英語, Groningen, The Netherlands
- Skyrmion states in triangular-lattice Heisenberg antiferromagnet with frustrated interactions, The Annual Meeting of the Deutsche Physikalische Gesellschaft and DPG - Spring meeting of the Division Condensed Matter, 2014年, 通常, 英語, Dresden, Germany
- The role of cubic anisotropy in the thermodynamical stability of skyrmions and half-skyrmions in cubic helimagnets, The Annual Meeting of the Deutsche Physikalische Gesellschaft and DPG - Spring meet-ing of the Division Condensed Matter, 2014年, 通常, 英語, Dresden, Germany
- Skyrmion states in classical triangular-lattice Heisenberg antiferromagnet with frustrated interactions, Physics@FOM Veldhoven, 2014年, 通常, 英語, Veldhoven, the Netherlands
- Novel skyrmion states in nanowires of chiral magnets, Joint European Magnetic Symposia, 2013年, 通常, 英語, Rhodes, Greece
- Multiple-q states in classical triangular-lattice Heisenberg antiferromagnet with frustrated interactions, International workshop, Dzyaloshinskii-Moriya interaction and exotic spin structures, 2013年, 通常, 英語, Veliky Novgorod, Russia
- Multiple-q states in classical triangular-lattice Heisenberg antiferromagnet with frustrated interactions, The Annual Meeting of the Deutsche Physikalische Gesellschaft and DPG - Spring meet-ing of the Division Condensed Matter, 2013年, 通常, 英語, Regensburg, Germany
外部資金
競争的資金等の採択状況
- 科学研究費助成事業(研究活動スタート支援), Non-axisymmetric skyrmions in chiral and frustrated magnets, 2017年, 2018年
社会活動
学術雑誌論文査読歴
- 2019年, その他, 8