論文・講演



English

学術論文


2023年度
  1. Xichao Zhang, Jing Xia, Oleg A. Tretiakov, Guoping Zhao, Yan Zhou, Masahito Mochizuki, Xiaoxi Liu, Motohiko Ezawa (2023/8/9)
    Reversible magnetic domain reorientation induced by magnetic field pulses of fixed direction
    Phys. Rev. B 108, 064410/1-11 (2023).
    DOI: 10.1103/PhysRevB.108.064410 (arXiv:2307.15263)


  2. Tatsuki Muto, Masahito Mochizuki (2023/8/15)
    Theory of Magnetic Vortex Crystals Induced by Electric Dipole Interactions
    Journal of the Physical Society of Japan 92, 084704/1-7 (2023).
    DOI: 0.7566/JPSJ.92.084704 (arXiv:2305.00751)


  3. Lan Bo, Rongzhi Zhao, Chenglong Hu, Xichao Zhang, Xuefeng Zhang, Masahito Mochizuki (2023/6/28)
    Controllable creation of skyrmion bags in a ferromagnetic nanodisk
    Physical Review B 107, 224431/1-7 (2023).
    DOI: 10.1103/PhysRevB.107.224431 (arXiv:2307.09528)


  4. Yusuke Miyajima, Masahito Mochizuki (2023/4/17)
    Machine-learning detection of the Berezinskii-Kosterlitz-Thouless transition and the second-order phase transition in XXZ models
    Physical Review B 107, 134420/1-16 (2023).
    DOI: 10.1103/PhysRevB.107.134420 (arXiv:2304.08871)


2022年度
  1. J. Matsuki and M. Mochizuki
    Thermoelectric effect of a skyrmion crystal confined in a magnetic disk
    Physical Review B 107, L100408/1-5 (2023).
    DOI: 10.1103/PhysRevB.107.L100408 (arXiv:2304.09503)


  2. M. Verseils, P. Hemme, D. Bounoua, R. Cervasio, J-B. Brubach, S. Houver, Y. Gallais, A. Sacuto, D. Colson, T. Iijima, M. Mochizuki, P. Roy, and M. Cazayous
    Stabilizing electromagnons in CuO under pressure
    npj Quantum Materials volume 8, 11/1-7 (2023).
    DOI: 10.1038/s41535-023-00542-1


  3. K. Kitayama, M. Ogata, M. Mochizuki, and Y. Tanaka
    Predicted novel type of photoinduced topological phase transition accompanied by collision and collapse of Dirac-cone pair in organic salt α-(BEDT-TTF)2I3
    Journal of the Physical Society of Japan 91, 104704/1-8 (2021).
    DOI: 10.7566/JPSJ.91.104704 (arXiv:2203.04539)


  4. M.-K. Lee, and M. Mochizuki
    Reservoir Computing with Spin Waves in a Skyrmion Crystal
    Physical Review Applied 18, 014074/1-18 (2022).
    DOI: 10.1103/PhysRevApplied.18.014074 (arXiv:2203.02160) Editors' Suggestion


  5. Y. Tanaka, and M. Mochizuki
    Dynamical phase transitions in the photodriven charge-ordered Dirac-electron system
    Physical Review Letters 129, 047402/1-6 (2022).
    DOI: 10.1103/PhysRevLett.129.047402 (arXiv:2203.04542)


  6. R. Eto, R. Pohle, and M. Mochizuki
    Low-Energy Excitations of Skyrmion Crystals in a Centrosymmetric Kondo-Lattice Magnet: Decoupled Spin-Charge Excitations and Nonreciprocity
    Physical Review Letters 129, 017201/1-7 (2022).
    DOI: 10.1103/PhysRevLett.129.017201 (arXiv:2203.01496)


  7. T. Inoue, and M. Mochizuki
    Photoinduced 120-degree spin order in the Kondo-lattice model on a triangular lattice
    Physical Review B 105, 144422/1-15 (2022).
    DOI: 10.1103/PhysRevB.105.144422 (arXiv:2202.06528)


2021年度
  1. R. Eto, and M. Mochizuki
    Dynamical switching of magnetic topology in microwave-driven itinerant magnet
    Physical Review B 104, 104425/1-13 (2021).
    DOI: 10.1103/PhysRevB.104.104425 (arXiv:2109.13511)


  2. Y. Uwabo, and M. Mochizuki
    Proposed Negative Thermal Expansion in Honeycomb-Lattice Antiferromagnets
    Journal of the Physical Society of Japan 90, 104712/1-6 (2021).
    DOI: 10.7566/JPSJ.90.104712 (arXiv:2108.13065)


  3. K. Kitayama, Y. Tanaka, M. Ogata, and M. Mochizuki
    Floquet theory of photoinduced topological phase transitions in the organic salt α-(BEDT-TTF)2I3 irradiated with elliptically polarized light
    Journal of the Physical Society of Japan 90, 104705/1-12 (2021).
    DOI: 10.7566/JPSJ.90.104705 (arXiv:2108.05843) Editors' Choice


  4. K. Kitayama, M. Mochizuki, Y. Tanaka, and M. Ogata
    Predicted photoinduced pair annihilation of emergent magnetic charges in the organic salt α-(BEDT-TTF)2I3 irradiated by linearly polarized light
    Physical Review B 104, 075127/1-9 (2021).
    DOI: 10.1103/PhysRevB.104.075127 (arXiv:2108.08069)


  5. Y. Tanaka, and M. Mochizuki
    Real-time dynamics of the photoinduced topological state in organic conductor α-(BEDT-TTF)2I3 under continuous-wave and pulse excitations
    Physical Review B 104, 085123/1-7 (2021).
    DOI: 10.1103/PhysRevB.104.085123 (arXiv:2108.04758)


  6. Y. Miyajima, Y. Murata, Y. Tanaka, and M. Mochizuki
    Machine learning detection of Berezinskii-Kosterlitz-Thoulesstransitions in q-state clock models
    Physical Review B 104, 075114/1-10 (2021).
    DOI: 10.1103/PhysRevB.104.075114 (arXiv:2108.05823)


2020年度
  1. T. Katsufuji, M. Miyake, M. Naka, M. Mochizuki, S. Kogo, T. Kajita, Y. Shimizu, M. Itoh, T. Hasegawa, S. Shimose, S. Noguchi, T. Saiki, T. Sato and F. Kagawa
    Orbital and magnetic ordering and domain-wall conduction in ferrimagnet La5Mo4O16
    Physical Review Research 3, 013105/1-17 (2021).
    DOI: 10.1103/PhysRevResearch.3.013105


  2. Y. Tanaka, T. Inoue, and M. Mochizuki
    Theory of the Inverse Faraday Effect due to the Rashba Spin-Oribt Interactions: Roles of Band Dispersions and Fermi Surfaces
    New Journal of Physics 22, 083054/1-11 (2020).
    DOI: 10.1088/1367-2630/aba5be (arXiv:2007.08072)


  3. K. Kitayama and M. Mochizuki
    Predicted photoinduced topological phases in organic salt α-(BEDT-TTF)2I3
    Physical Review Research 2, 023229/1-7 (2020).
    DOI: 10.1103/PhysRevResearch.2.023229 (arXiv:2005.14364)


2019年度
  1. M. Miyake, and M. Mochizuki
    Creation of nanometric magnetic skyrmions by global application of circularly polarized microwave magnetic field
    Physical Review B 101, 094419/1-9 (2020).
    DOI: 10.1103/PhysRevB.101.094419 (arXiv:2003.07022)


  2. K. Tanaka, R. Sugawara, and M. Mochizuki
    Theoretical study on stabilization and destabilization of magnetic skyrmions by uniaxial-strain-induced anisotropic Dzyaloshinskii--Moriya interactions
    Physical Review Materials 4, 034404/1-8 (2020).
    DOI: 10.1103/PhysRevMaterials.4.034404 (arXiv:2003.07034)


  3. K. Shimizu, and M. Mochizuki
    Theoretical study on slit experiments in Rashba electron systems
    Physical Review B 101, 045301/1-6 (2020).
    DOI: 10.1103/PhysRevB.101.045301 (arXiv:1909.10725)


  4. T. Koide, A. Takeuchi, and M. Mochizuki
    DC spinmotive force from microwave-active resonant dynamics of skyrmion crystal under a tilted magnetic field
    Physical Review B 100, 014408/1-9 (2019).
    DOI: 10.1103/PhysRevB.100.014408 (arXiv:1907.00621)


  5. A. Takeuchi, S. Mizushima, and M. Mochizuki
    Electrically driven spin torque and dynamical Dzyaloshinskii-Moriya interaction in magnetic bilayer systems
    Scientific Reports 9, 9528/1-8 (2019).
    DOI: 10.1038/s41598-019-46009-x (arXiv:1907.00601)


  6. K.-J. Kim, M. Mochizuki, and T. Ono
    Prediction of topological Hall effect in a driven magnetic domain wall
    Applied Physics Express 12, 053006/1-3 (2019).
    DOI: 10.7567/1882-0786/ab1801 (arXiv:1907.01648)


  7. L. V. Abdurakhimov, S. Khan, N. A. Panjwani, J. D. Breeze, M. Mochizuki, S. Seki, Y. Tokura, J. J. L. Morton, and H. Kurebayashi
    Magnon-photon coupling in the noncollinear magnetic insulator Cu2OSeO3
    Physical Review B 99, 140401(R)/1-6 (2019).
    DOI: 10.1103/PhysRevB.99.140401 (arXiv:1802.07113) Editors' Suggestion


2018年度
  1. M. Kobayashi, and M. Mochizuki
    Theory of magnetism-driven negative thermal expansion in inverse perovskite antiferromagnets
    Physical Review Materials 3, 024407/1-6 (2019).
    DOI: 10.1103/PhysRevMaterials.3.024407 (arXiv:1902.08904)


  2. K. Kurushima, K. Tanaka, H. Nakajima, M. Mochizuki, and S. Mori
    Microscopic magnetization distribution of Bloch lines in a uniaxial magnet
    Journal of Applied Physics 125, 053902/1-4 (2019).
    DOI: 10.1063/1.5042678 (arXiv:1907.00819)


  3. M. Ikka, A. Takeuchi, and M. Mochizuki
    Resonance modes and microwave-driven translational motion of a skyrmion crystal under an inclined magnetic field
    Physical Review B 98, 184428/1-9 (2018).
    DOI: 10.1103/PhysRevB.98.184428 (arXiv:1811.06501)


  4. I. Aupiais, M. Mochizuki, H. Sakata, R. Grasset, Y. Gallais, A. Sacuto, and M. Cazayous
    Colossal electromagnon excitation in the non-cycloidal phase of TbMnO3 under pressure
    npj Quantum Materials 3, 60/1-5 (2018).
    DOI: 10.1038/s41535-018-0130-3 (arXiv:1901.00919)


  5. A. Takeuchi, and M. Mochizuki
    Selective activation of an isolated magnetic skyrmion in a ferromagnet with microwave electric fields
    Applied Physics Letters 113, 072404/1-5 (2018).
    DOI: 10.1063/1.5045629 (arXiv:1810.01606)


2017年度
  1. M. Mochizuki, K. Ihara, J. Ohe, and A. Takeuchi
    Highly efficient induction of spin polarization by circularly polarized electromagnetic waves in the Rashba spin-orbit systems
    Applied Physics Letters 112, 122401/1-5 (2018).
    DOI: 10.1063/1.5022262 (arXiv:1809.07513)


  2. M. Mochizuki, M. Kobayashi, R. Okabe, and D. Yamamoto
    Spin model for nontrivial types of magnetic order in inverse-perovskite antiferromagnets
    Physical Review B 97, 060401(R)/1-5 (2018).
    DOI: 10.1103/PhysRevB.97.060401 (arXiv:1809.04740)


  3. H. Nakajima, A. Kotani, M. Mochizuki, K. Harada, and S. Mori
    Formation process of skyrmion lattice domain boundaries: The role of grain boundaries
    Applied Physics Letters 111, 192401/1-5 (2017).
    DOI: 10.1063/1.4991791 (arXiv:1907.00774)


  4. M. Mochizuki
    Controlled creation of nanometric skyrmions using external magnetic fields
    Applied Physics Letters 111, 092403/1-5 (2017).
    DOI: 10.1063/1.4993855 (arXiv:1809.04331)


2015年度
  1. M. Mochizuki
    Creation of Skyrmions by Electric Field on Chiral-Lattice Magnetic Insulators
    Advanced Electronic Materials 2, 1500180/1-6 (2016).
    DOI: 10.1002/aelm.201500180 (arXiv:1511.07123)


  2. M. Mochizuki
    Theory of Magnetic-Field-Induced Polarization Flop in Spin-Spiral Multiferroics
    Physical Review B 92, 224412/1-6 (2015).
    DOI: 10.1103/PhysRevB.92.224412 (arXiv:1511.07960)


  3. I. Kezsmarki, S. Bordács, P. Milde, E. Neuber, L. M. Eng, J. S. White, H. M. Ronnow, C. D. Dewhurst, M. Mochizuki, K. Yanai, H. Nakamura, D. Ehlers, V. Tsurkan, A. Loidl
    Neel-type skyrmion lattice with confined orientation in the polar magnetic semiconductor GaV4S8
    Nature Materials 14, 1116-1122 (2015).
    DOI:10.1038/nmat4402 (arXiv:1502.08049)


  4. M. Mochizuki and Y. Watanabe
    Writing a skyrmion on multiferroic materials
    Applied Physics Letters 107, 082409/1-5 (2015).
    DOI: 10.1063/1.4929727 (arXiv:1511.08433)


  5. M. Matsubara, S. Manz, M. Mochizuki, T. Kubacka, A. Iyama, N. Aliouane, T. Kimura, S. Johnson, D. Meier, and M. Fiebig
    Magnetoelectric domain control in multiferroic TbMnO3
    Science 348, 1112-1115 (2015).
    DOI: 10.1126/science.1260561


  6. M. Mochizuki
    Microwave Magnetochiral Effect in Cu2OSeO3
    Physical Review Letters 114, 197203/1-5 (2015).
    DOI: 10.1103/PhysRevLett.114.197203 (arXiv:1504.05864)


2014年度
  1. M. Mochizuki, X. Z. Yu, S. Seki, N. Kanazawa, W. Koshibae, J. Zang, M. Mostovoy, Y. Tokura, N. Nagaosa
    Thermally driven ratchet motion of a skyrmion microcrystal and topological magnon Hall effect
    Nature Materials 13, 241-246 (2014).
    DOI: 10.1038/nmat3862


  2. J. Iwasaki, M. Mochizuki, and N. Nagaosa
    Current-induced skyrmion dynamics in constricted geometries
    Nature Nanotechnology 8, 742-747 (2013).
    DOI: 10.1038/nnano.2013.176


  3. Y. Okamura, F. Kagawa, M. Mochizuki, M. Kubota, S. Seki, S. Ishiwata, M. Kawasaki, Y. Onose, Y. Tokura
    Microwave magnetoelectric effect via skyrmion resonance modes in a helimagnetic multiferroic
    Nature Communications 4, 3391/1-6 (2013).
    DOI: 10.1038/ncomms3391


  4. M. Mochizuki, and S. Seki
    Magnetoelectric resonances and predicted microwave diode effect of the skyrmion crystal in a multiferroic chiral-lattice magnet
    Physical Review B 87, 134403/1-5 (2013).
    DOI: 10.1103/PhysRevB.87.134403


2012年度
  1. J. Iwasaki, M. Mochizuki, and N. Nagaosa
    Universal current-velocity relation of skyrmion motion in chiral magnets
    Nature Communications 4, 1463/1-8 (2013).
    DOI: 10.1038/ncomms2442


2011年度
  1. Y. Shiomi, M. Mochizuki, Y. Kaneko, and Y. Tokura
    Hall Effect of Spin-Chirality Origin in a Triangular-Lattice Helimagnet Fe1.3Sb
    Physical Review Letters 108, 056601/1-5 (2012).
    DOI: 10.1103/PhysRevLett.108.056601


  2. H. Wadati, M. Mochizuki et al.
    Origin of the Large Polarization in Multiferroic YMnO3 Thin Films Revealed by Soft- and Hard-X-Ray Diffraction
    Physical Review Letters 108, 047203/1-5 (2012).
    DOI: 10.1103/PhysRevLett.108.047203


  3. M. Mochizuki
    Spin-Wave Modes and Their Intense Excitation Effects in Skyrmion Crystals
    Physical Review Letters 108, 017601/1-5 (2012).
    DOI: 10.1103/PhysRevLett.108.017601


  4. M. Mochizuki, N. Furukawa and N. Nagaosa
    Theory of spin-phonon coupling in multiferroic manganese perovskites RMnO3
    Physical Review B 84, 144409/1-14 (2011). Editors' Suggestion
    DOI: 10.1103/PhysRevB.84.144409


  5. P. Rovillain, M. Cazayous, Y. Gallais, M-A. Measson, A. Sacuto, H. Sakata, and M. Mochizuki
    Magnetic Field Induced Dehybridization of the Electromagnons in Multiferroic TbMnO3
    Physical Review Letters 107, 027202/1-4 (2011).
    DOI: 10.1103/PhysRevLett.107.027202


2010年度
  1. M. Mochizuki and N. Furukawa
    Theory of Magnetic Switching of Ferroelectricity in Spiral Magnets
    Physical Review Letters 105, 187601/1-4 (2010).
    DOI: 10.1103/PhysRevLett.105.187601


  2. M. Mochizuki and N. Nagaosa
    Theoretically Predicted Picosecond Optical Switching of Spin Chirality in Multiferroics
    Physical Review Letters 105, 147202/1-4 (2010).
    DOI: 10.1103/PhysRevLett.105.147202


  3. M. Mochizuki, N. Furukawa and N. Nagaosa
    Spin Model of Magnetostrictions in Multiferroic Mn Perovskites
    Physical Review Letters 105, 037205/1-4 (2010).
    DOI: 10.1103/PhysRevLett.105.037205


  4. M. Mochizuki, N. Furukawa and N. Nagaosa
    Theory of Electromagnons in the Multiferroic Mn Perovskites: The Vital Role of Higher Harmonic Components of the Spiral Spin Order
    Physical Review Letters 104, 177206/1-4 (2010).
    DOI: 10.1103/PhysRevLett.104.177206


2009年度
  1. N. Furukawa and M. Mochizuki
    Roles of Bond Alternation in Magnetic Phase Diagram of RMnO3
    Journal of the Physical Society of Japan 79, 033708/1-4 (2010).
    DOI: 10.1143/JPSJ.79.033708


  2. M. Tokunaga, Y. Yamasaki, Y. Onose, M. Mochizuki, N. Furukawa and Y. Tokura
    Novel Multiferroic State of Eu1-xYxMnO3 in High Magnetic Fields
    Physical Review Letters 103, 187202/1-4 (2009).
    DOI: 10.1103/PhysRevLett.103.187202


  3. M. Mochizuki and N. Furukawa
    Microscopic Model and Phase Diagrams of the Multiferroic Perovskite Manganites
    Physical Review B 80, 134416 (2009).
    DOI: 10.1103/PhysRevB.80.134416


  4. M. Mochizuki and N. Furukawa
    Mechanism of Lattice-Distortion-Induced Electric-Polarization Flop in the Multiferroic Perovskite Manganites
    Journal of the Physical Society of Japan 78, 053704/1-4 (2009).
    DOI: 10.1143/JPSJ.78.053704


2008年度
  1. F. Kagawa, M. Mochizuki, Y. Onose, H. Murakawa, Y. Kaneko, N. Furukawa and Y. Tokura
    Dynamics of Multiferroic Domain Wall in Spin-Cycloidal Ferroelectric DyMnO3
    Physical Review Letters 102, 057604/1-4 (2009).
    DOI: 10.1103/PhysRevLett.102.057604


  2. Y. Takahashi, N. Kida, Y. Yamasaki, J. Fujioka, T. Arima, R. Shimano, S. Miyahara, M. Mochizuki, N. Furukawa and Y. Tokura
    Evidence for an Electric-Dipole Active Continuum Band of Spin Excitations in Multiferroic TbMnO3
    Physical Review Letters 101, 187201/1-4 (2008).
    DOI: 10.1103/PhysRevLett.101.187201


2007年度
  1. D. Yoshizumi, Y. Muraoka, Y. Okamoto, Y. Kiuchi, J. Yamaura, M. Mochizuki, M. Ogata and Z. Hiroi
    Precise Control of Band Filling in NaxCoO2
    Journal of the Physical Society of Japan 76, 063705/1-4 (2007).
    DOI: 10.1143/JPSJ.76.063705


2006年度
  1. M. Mochizuki, H. Q. Yuan and M. Ogata
    Specific Heat and Superfluid Density for Possible Two Different Superconducting States in NaxCoO2・yH2O
    Journal of the Physical Society of Japan 76, 023702/1-5 (2007).


  2. M. Mochizuki and M. Ogata
    CoO2-Layer-Thickness Dependence of Magnetic Properties and Possible Two Different Superconducting States in NaxCoO2・yH2O
    Journal of the Physical Society of Japan 76, 013704/1-5 (2007).


  3. M. Mochizuki and M. Ogata
    Deformation of Electronic Structures Due to CoO6 Distortion and Phase Diagrams of NaxCoO2・yH2O
    Journal of the Physical Society of Japan 75, 113703/1-5 (2006).


2005年度
  1. Y. Yanase, M. Mochizuki and M. Ogata
    Role of Spin-Orbit Coupling on the Spin Triplet Pairing in NaxCoO2・yH2O II: Multiple Phase Diagram under the Magnetic Field
    Journal of the Physical Society of Japan 74, 3351-3364 (2005).


  2. Y. Yanase, M. Mochizuki and M. Ogata
    Role of Spin-Orbit Coupling on the Spin Triplet Pairing in NaxCoO2・yH2O I: d-Vector under Zero Magnetic Field
    Journal of the Physical Society of Japan 74, 2568-2578 (2005).


  3. M. Mochizuki, Y. Yanase and M. Ogata
    Ferromagnetic and Triplet-Pairing Instabilities Controlled by Trigonal Distortion of CoO6 Octahedra in NaxCoO2・yH2O
    Journal of the Physical Society of Japan 74, 1670-1673 (2005).


  4. Y. Yanase, M. Mochizuki and M. Ogata
    Multi-Orbital Analysis on the Superconductivity in NaxCoO2・yH2O
    Journal of the Physical Society of Japan 74, 430-444 (2005).


  5. M. Mochizuki, Y. Yanase and M. Ogata
    Ferromagnetic Fluctuation and Possible Triplet Superconductivity in NaxCoO2・yH2O: Fluctuation-Exchange Study of the Multiorbital Hubbard Model
    Physical Review Letters 94, 147005/1-4 (2005).


2004年度以前
  1. M. Mochizuki and M. Imada
    G-Type Antiferromagnetism and Orbital Ordering Due to the Crystal Field from the Rare-Earth Ions Induced by the GdFeO3-Type Distortion in RTiO3 with R=La, Pr, Nd and Sm
    Journal of the Physical Society of Japan 73, 1833-1850 (2004).


  2. M. Mochizuki and M. Imada
    Orbital-Spin Structure and Lattice Coupling in RTiO3 Where R=La, Pr, Nd and Sm
    Physical Review Letters 91, 167203/1-4 (2003).


  3. M. Mochizuki
    Spin and Orbital States and Their Phase Transitions of the Perovskite-Type Ti Oxides: Weak Coupling Approach
    Journal of the Physical Society of Japan 71, 2039-2047 (2002).


  4. M. Mochizuki and M. Imada
    Origin of G-Type Antiferromagnetism and Orbital-Spin Structures in LaTiO3
    Journal of the Physical Society of Japan 70, 2872-2875 (2001).


  5. M. Mochizuki and M. Imada
    Magnetic and Orbital States and Their Phase Transition of the Perovskite-Type Ti Oxides: Strong Coupling Approach
    Journal of the Physical Society of Japan 70, 1777-1789 (2001).


  6. M. Mochizuki and M. Imada
    Magnetic Phase Transition of the Perovskite-Type Ti Oxides
    Journal of the Physical Society of Japan 69, 1982-1985 (2000).