Papers

FY2023

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

FY2022

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)

FY2021

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)

FY2020

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)

FY2019

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

FY2018

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)

FY2017

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)

FY2015

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)

FY2014

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

FY2012

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

FY2011

1. Y. Shiomi, M. Mochizuki, Y. Kaneko, and Y. Tokura
   Hall Effect of Spin-Chirality Origin in a Triangular-Lattice Helimagnet Fe_1.3Sb
   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

FY2010

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

FY2009

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 Eu_1-xY_xMnO₃ 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

FY2008

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

FY2007

1. D. Yoshizumi, Y. Muraoka, Y. Okamoto, Y. Kiuchi, J. Yamaura, M. Mochizuki, M. Ogata and Z. Hiroi
   Precise Control of Band Filling in Na_xCoO₂
   Journal of the Physical Society of Japan 76, 063705/1-4 (2007).
   DOI: 10.1143/JPSJ.76.063705

FY2006

1. M. Mochizuki, H. Q. Yuan and M. Ogata
   Specific Heat and Superfluid Density for Possible Two Different Superconducting States in Na_xCoO₂・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 Na_xCoO₂・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 Na_xCoO₂・yH₂O
   Journal of the Physical Society of Japan 75, 113703/1-5 (2006).

FY2005

1. Y. Yanase, M. Mochizuki and M. Ogata
   Role of Spin-Orbit Coupling on the Spin Triplet Pairing in Na_xCoO₂・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 Na_xCoO₂・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 Na_xCoO₂・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 Na_xCoO₂・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 Na_xCoO₂・yH₂O: Fluctuation-Exchange Study of the Multiorbital Hubbard Model
   Physical Review Letters 94, 147005/1-4 (2005).

BEFORE FY2004

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).