Japanese

Hayami Group

Review Article

  1. S. Hayami,M. Yatsushiro,Y. Yanagi,and H. Kusunose,
    "Microscopic multipole description in condensed matter physics (6)"
    Kotai Butsuri 56(7), 333-353 (2021)

  2. S. Hayami,M. Yatsushiro,Y. Yanagi,and H. Kusunose,
    "Microscopic multipole description in condensed matter physics (5)"
    Kotai Butsuri 56(4), 171-188 (2021)

  3. S. Hayami,M. Yatsushiro,Y. Yanagi,and H. Kusunose,
    "Microscopic multipole description in condensed matter physics (4)"
    Kotai Butsuri 56(1), 1-19 (2021)

  4. H. Kusunose and S. Hayami,
    "Generalization of microscopic multipoles and its applications to spontaneous orderings and cross-correlated phenomena"
    Kotai Butsuri 55(11), 523-534 (2020)

  5. S. Hayami,M. Yatsushiro,Y. Yanagi,and H. Kusunose,
    "Microscopic multipole description in condensed matter physics (3)"
    Kotai Butsuri 55(8), 379-396 (2020)

  6. S. Hayami,M. Yatsushiro,Y. Yanagi,and H. Kusunose,
    "Microscopic multipole description in condensed matter physics (2)"
    Kotai Butsuri 55(1), 1-11 (2020)

  7. S. Hayami,M. Yatsushiro,Y. Yanagi,and H. Kusunose,
    "Microscopic multipole description in condensed matter physics (1)"
    Kotai Butsuri 54(3), 131-145 (2019)

  8. C. D. Batista, S.-Z. Lin, S. Hayami, and Y. Kamiya,
    "Frustration and chiral orderings in correlated electron systems"
    Rep. Prog. Phys. 79, 084504 (2016)

  9. S. Hayami,H. Kusunose,and Y. Motome,
    "Spontaneous breaking of space inversion symmetry in itinerant electron system -Unconventional multipole ordering, spin-valley splitting, and off-diagonal response-"
    Kotai Butsuri 50(5), 217-234 (2015)

Preprint

  1. T. Matsumoto and S. Hayami,
    "Nonreciprocal magnon excitations by the Dzyaloshinskii-Moriya interaction on the basis of bond magnetic toroidal multipoles"
    Preprint (arXiv:2107.12743, Condensed Matter)

  2. S. Hayami and R. Yambe,
    "Meron-antimeron crystals in noncentrosymmetric itinerant magnets on a triangular lattice"
    Preprint (arXiv:2107.03501, Condensed Matter)

  3. S. Hayami and R. Yambe,
    "Locking of skyrmion cores on a centrosymmetric discrete lattice: onsite versus offsite"
    Preprint (arXiv:2107.03500, Condensed Matter)

  4. M. Yatsushiro, H. Kusunose, and S. Hayami,
    "Multipole classification in 122 magnetic point groups for unified understanding of multiferroic responses and transport phenomena"
    Preprint (arXiv:2105.12890, Condensed Matter)

  5. S. Hayami and Y. Motome,
    "Topological spin crystals by itinerant frustration"
    Preprint (arXiv:2103.10647, Condensed Matter)

  6. S. Hayami, T. Okubo, and Y. Motome,
    "Phase Shift in Skyrmion Crystals"
    Preprint (arXiv:2005.03168, Condensed Matter)

Paper

  1. S. Hayami and H. Kusunose,
    "Spin-orbital-momentum locking under odd-parity magnetic quadrupole ordering"
    Phys. Rev. B 104, 045117 (2021)
    Preprint (arXiv:2105.09444, Condensed Matter)

  2. S. Hayami,
    "In-plane magnetic field-induced skyrmion crystal in frustrated magnets with easy-plane anisotropy"
    Phys. Rev. B 103, 224418 (2021)

  3. S. Hayami and R. Yambe,
    "Field-Direction Sensitive Skyrmion Crystals in Cubic Chiral Systems: Implication to 4f-Electron Compound EuPtSi"
    J. Phys. Soc. Jpn. 90, 073705 (2021) [selected in Papers of Editors' Choice]
    Preprint (arXiv:2106.00113, Condensed Matter)

  4. R. Yambe and S. Hayami,
    "Skyrmion crystals in centrosymmetric itinerant magnets without horizontal mirror plane"
    Sci. Rep. 11, 11184 (2021)

  5. S. Hayami and H. Kusunose,
    "Essential role of anisotropic magnetic dipole in anomalous Hall effect"
    Phys. Rev. B 103, L180407 (2021)
    Preprint (arXiv:2104.07964, Condensed Matter)

  6. S. Hayami,
    "Electronic Nematic Ordering Driven by Atomic-scale Multipoles"
    JPS Hot Topics 1, 035 (2021)

  7. S. Hayami,
    "Rich Electronic Nematic Orderings Realized by Atomic-scale Electric Quadrupoles"
    JPSJ News Comments 18, 06 (2021)

  8. H. Hanate, T. Hasegawa, S. Hayami, S. Tsutsui, S. Kawano, and K. Matsuhira,
    "First Observation of Superlattice Reflections in the Hidden Order at 105 K of Spin-Orbit Coupled Iridium Oxide Ca5Ir3O12"
    J. Phys. Soc. Jpn. 90, 063702 (2021) [selected in Papers of Editors' Choice]

  9. S. Seo, S. Hayami, Y. Su, S. M. Thomas, F. Ronning, E. D. Bauer, J. D. Thompson, S.-Z. Lin, and P. F. S. Rosa,
    "Spin-texture-driven electrical transport in multi-Q antiferromagnets"
    Commun. Phys. 4, 58 (2021)

  10. M. Hirschberger, S. Hayami, and Y. Tokura,
    "Modeling a nanometric skyrmion lattice using anisotropic exchange interactions in a centrosymmetric host"
    New J. Phys. 23, 023039 (2021)

  11. S. Hayami and Y. Motome,
    "Noncoplanar multiple-Q spin textures by itinerant frustration: Effects of single-ion anisotropy and bond-dependent anisotropy"
    Phys. Rev. B 103, 054422 (2021)
    Preprint (arXiv:2011.13040, Condensed Matter)

  12. S. Hayami and Y. Motome,
    "Square skyrmion crystal in centrosymmetric itinerant magnets"
    Phys. Rev. B 103, 024439 (2021)
    Preprint (arXiv:2010.14671, Condensed Matter)

  13. M. Yatsushiro and S. Hayami,
    "NQR and NMR spectra in odd-parity multipole material CeCoSi"
    Phys. Rev. B 102, 195147 (2020)
    Preprint (arXiv:2011.06212, Condensed Matter)

  14. Y. Yasui, C. J. Butler, N. D. Khanh, S. Hayami, T. Nomoto, T. Hanaguri, Y. Motome, R. Arita, T.-h. Arima, Y. Tokura, and S. Seki,
    "Imaging the coupling between itinerant electrons and localised moments in the centrosymmetric skyrmion magnet GdRu2Si2"
    Nat. Commun. 11, 5925 (2020)
    Preprint (arXiv:2011.00785, Condensed Matter)

  15. S. Hayami, Y. Yanagi, and H. Kusunose,
    "Bottom-up design of spin-split and reshaped electronic band structures in spin-orbit-coupling free antiferromagnets: Procedure on the basis of augmented multipoles"
    Phys. Rev. B 102, 144441 (2020)
    Preprint (arXiv:2008.10815, Condensed Matter)

  16. H. Kusunose, R. Oiwa, and S. Hayami,
    "Complete Multipole Basis Set for Single-Centered Electron Systems"
    J. Phys. Soc. Jpn. 89, 104704 (2020)
    Preprint (arXiv:2007.08039, Condensed Matter)

  17. S. Hayami and R. Yambe,
    "Degeneracy Lifting of Neel, Bloch, and Anti-Skyrmion Crystals in Centrosymmetric Tetragonal Systems"
    J. Phys. Soc. Jpn. 89, 103702 (2020)
    Preprint (arXiv:2009.06821, Condensed Matter)

  18. M. Naka, S. Hayami, H. Kusunose, Y. Yanagi, Y. Motome, and H. Seo,
    "Anomalous Hall effect in κ-type organic antiferromagnets"
    Phys. Rev. B 102, 075112 (2020)
    Preprint (arXiv:2004.04578, Condensed Matter)

  19. S. Hayami,
    "Multiple-Q magnetism by anisotropic bilinear-biquadratic interactions in momentum space"
    J. Magn. Magn. Mater. 513, 167181 (2020)

  20. T. Matsumoto and S. Hayami,
    "Nonreciprocal magnons due to symmetric anisotropic exchange interaction in honeycomb antiferromagnets"
    Phys. Rev. B 101, 224419 (2020)
    Preprint (arXiv:2005.13729, Condensed Matter)

  21. S. Hayami, Y. Yanagi, and H. Kusunose,
    "Spontaneous antisymmetric spin splitting in noncollinear antiferromagnets without spin-orbit coupling"
    Phys. Rev. B 101, 220403(R) (2020)
    Preprint (arXiv:2001.05630, Condensed Matter)

  22. S. Okumura, S. Hayami, Y. Kato, and Y. Motome
    "Magnetic hedgehog lattices in noncentrosymmetric metals"
    Phys. Rev. B 101, 144416 (2020)
    Preprint (arXiv:1908.05044, Condensed Matter)

  23. Y. Su, S. Hayami, and S.-Z. Lin
    "Dimension transcendence and anomalous charge transport in magnets with moving multiple-Q spin textures"
    Phys. Rev. Research 2, 013160 (2020)
    Preprint (arXiv:1904.05473, Condensed Matter)

  24. M. Yatsushiro and S. Hayami
    "Odd-Parity Multipoles by Staggered Magnetic Dipole and Electric Quadrupole Orderings in CeCoSi"
    J. Phys. Soc. Jpn. 89, 013703 (2020)
    Preprint (arXiv:1912.02422, Condensed Matter)

  25. R. Yambe and S. Hayami,
    "Double-Q Chiral Stripe in the d–p Model with Strong Spin–Charge Coupling"
    J. Phys. Soc. Jpn. 89, 013702 (2020)
    Preprint (arXiv:1912.03906, Condensed Matter)

  26. S. Hayami, Y. Yanagi, and H. Kusunose,
    "Momentum-Dependent Spin Splitting by Collinear Antiferromagnetic Ordering"
    J. Phys. Soc. Jpn. 88, 123702 (2019)
    Preprint (arXiv:1908.08680, Condensed Matter)

  27. M. Naka, S. Hayami, H. Kusunose, Y. Yanagi, Y. Motome, and H. Seo,
    "Spin current generation in organic antiferromagnets"
    Nat. Commun. 10, 4305 (2019) [selected in Editors' Highlights]
    Preprint (arXiv:1902.02506, Condensed Matter)

  28. S. Hayami, H. Kusunose, and Y. Motome,
    "Magnetic Vortex Induced by Nonmagnetic Impurity in Ferromagnets: Magnetic Multipole and Toroidal around the Vacancy"
    J. Phys. Soc. Jpn. 88, 063702 (2019)
    Preprint (arXiv:1905.07669, Condensed Matter)

  29. M.-T. Suzuki, T. Nomoto, R. Arita, Y. Yanagi, S. Hayami, and H. Kusunose,
    "Multipole expansion for magnetic structures: A generation scheme for symmetry-adapted orthonormal basis set in crystallographic point group"
    Phys. Rev. B 99, 174407 (2019) [selected in Editors' Suggestion]
    Preprint (arXiv:1902.10819, Condensed Matter)

  30. M. Yatsushiro and S. Hayami,
    "Atomic-Scale Magnetic Toroidal Dipole under Odd-Parity Hybridization"
    J. Phys. Soc. Jpn. 88, 054708 (2019)
    Preprint (arXiv:1903.04708, Condensed Matter)

  31. S. Hayami, Y. Yanagi, H. Kusunose, and Y. Motome,
    "Electric Toroidal Quadrupoles in Spin-Orbit-Coupled Metal Cd2Re2O7"
    Phys. Rev. Lett. 122, 147602 (2019) [selected as Cover image and PDF FILE]
    Preprint (arXiv:1812.01249, Condensed Matter)

  32. S. Hayami and Y. Motome,
    "Effect of magnetic anisotropy on Skyrmions with a high topological number in itinerant magnets"
    Phys. Rev. B 99, 094420 (2019)
    Preprint (arXiv:1811.11336, Condensed Matter)

  33. R. Takagi, J. S. White, S. Hayami, R. Arita, D. Honecker, H. M. Rønnow, Y. Tokura, and S. Seki,
    "Multiple-q noncollinear magnetism in an itinerant hexagonal magnet"
    Sci. Adv. 4, eaau3402 (2018)

  34. S. Hayami, M. Yatsushiro, Y. Yanagi, and H. Kusunose,
    "Classification of atomic-scale multipoles under crystallographic point groups and application to linear response tensors"
    Phys. Rev. B 98, 165110 (2018) [selected in Editors' Suggestion]
    Preprint (arXiv:1806.01964, Condensed Matter)

  35. S. Hayami and Y. Motome,
    "Néel- and Bloch-Type Magnetic Vortices in Rashba Metals"
    Phys. Rev. Lett. 121, 137202 (2018) [selected as Cover image and PDF FILE]
    Preprint (arXiv:1803.01543, Condensed Matter)

  36. S. Hayami and H. Kusunose,
    "Microscopic Description of Electric and Magnetic Toroidal Multipoles in Hybrid Orbitals"
    J. Phys. Soc. Jpn. 87, 033709 (2018) [selected in Most Cited Articles in 2019 from Vol. 87 (2018)]
    Preprint (arXiv:1712.02927, Condensed Matter)

  37. S. Hayami, H. Kusunose, and Y. Motome,
    "Emergent odd-parity multipoles and magnetoelectric effects on a diamond structure: implication to 5d transition metal oxides AOsO4 (A= K, Rb, and Cs)"
    Phys. Rev. B 97, 024414 (2018)
    Preprint (arXiv:1711.09507, Condensed Matter)

  38. Y. Yanagi, S. Hayami, and H. Kusunose,
    "Manipulating magnetoelectric effect -- Essence learned from Co4Nb2O9"
    Phys. Rev. B 97, 020404 (2018)
    Preprint (arXiv:1712.03918, Condensed Matter)

  39. R. Ozawa, S. Hayami, K. Barros, and Y. Motome,
    "Shape of magnetic domain walls formed by coupling to mobile charges"
    Phys. Rev. B 96, 094417 (2017)
    Preprint (arXiv:1609.07189, Condensed Matter)

  40. S. Hayami, R. Ozawa, and Y. Motome,
    "Effective bilinear-biquadratic model for noncoplanar ordering in itinerant magnets"
    Phys. Rev. B 95, 224424 (2017), erratum [selected in Kaleidoscopes]
    Preprint (arXiv:1703.07690, Condensed Matter)

  41. R. Ozawa, S. Hayami, and Y. Motome,
    "Zero-Field Skyrmions with a High Topological Number in Itinerant Magnets"
    Phys. Rev. Lett. 118, 147205 (2017)
    Preprint (arXiv:1703.03227, Condensed Matter)

  42. S. Hayami, S.-Z. Lin, Y. Kamiya, and C. D. Batista
    "Vortices, skyrmions, and chirality waves in frustrated Mott insulators with a quenched periodic array of impurities"
    Phys. Rev. B 94, 174420 (2016)
    Preprint (arXiv:1607.07100, Condensed Matter)

  43. R. Ozawa, S. Hayami, K. Barros, G. W. Chern, Y. Motome, and C. D. Batista,
    "Vortex Crystals with Chiral Stripes in Itinerant Magnets"
    J. Phys. Soc. Jpn. 85, 103703 (2016)
    Preprint (arXiv:1510.06830, Condensed Matter)

  44. S. Hayami, H. Kusunose, and Y. Motome,
    "Emergent spin-valley-orbital physics by spontaneous parity breaking"
    J. Phys.: Condens. Matter 28, 395601 (2016)
    Preprint (arXiv:1607.05782, Condensed Matter)

  45. S. Hayami, R. Ozawa, and Y. Motome,
    "Engineering chiral density waves and topological band structures by multiple-Q superpositions of collinear up-up-down-down orders"
    Phys. Rev. B 94, 024424 (2016)
    Preprint (arXiv:1603.06646, Condensed Matter)

  46. S. Hayami, S.-Z. Lin, and C. D. Batista,
    "Bubble and skyrmion crystals in frustrated magnets with easy-axis anisotropy"
    Phys. Rev. B 93, 184413 (2016)
    Preprint (arXiv:1601.02064, Condensed Matter)

  47. S.-Z. Lin, S. Hayami, and C. D. Batista
    "Magnetic Vortex Induced by Nonmagnetic Impurity in Frustrated Magnets"
    Phys. Rev. Lett. 116, 187202 (2016)

  48. S. Hayami, H. Kusunose, and Y. Motome,
    "Asymmetric Magnon Excitation by Spontaneous Toroidal Ordering"
    J. Phys. Soc. Jpn. 85, 053705 (2016)
    Preprint (arXiv:1508.05627, Condensed Matter)

  49. S.-Z. Lin and S. Hayami,
    "Ginzburg-Landau theory for skyrmions in inversion-symmetric magnets with competing interactions"
    Phys. Rev. B 93, 064430 (2016)
    Preprint (arXiv:1512.05012, Condensed Matter)

  50. S. Hayami, H. Kusunose, and Y. Motome,
    "Spontaneous multipole ordering by local parity mixing"
    J. Phys. Soc. Jpn. 84, 064717 (2015)
    Preprint (arXiv:1502.00057, Condensed Matter)

  51. S. Hayami and Y. Motome,
    "Topological semimetal-to-insulator phase transition between noncollinear and noncoplanar multiple-Q states on a square-to-triangular lattice"
    Phys. Rev. B 91, 075104 (2015)
    Preprint (arXiv:1412.0752, Condensed Matter)

  52. S. Hayami, H. Kusunose, and Y. Motome,
    "Spontaneous parity breaking in spin-orbital coupled systems"
    Phys. Rev. B 90, 081115(R) (2014)
    Preprint (arXiv:1406.2093, Condensed Matter)

  53. S. Hayami and Y. Motome,
    "Multiple-Q instability by (d-2)-dimensional connections of Fermi surfaces"
    Phys. Rev. B 90, 060402(R) (2014)
    Preprint (arXiv:1406.3119, Condensed Matter)

  54. S. Hayami, H. Kusunose, and Y. Motome,
    "Toroidal order in metals without local inversion symmetry"
    Phys. Rev. B 90, 024432 (2014) [selected in Editors' Suggestion]
    Preprint (arXiv:1404.1156, Condensed Matter)

  55. S. Hayami, T. Misawa, Y. Yamaji, and Y. Motome,
    "Three-dimensional Dirac electrons on a cubic lattice with noncoplanar multiple-Q order"
    Phys. Rev. B 89, 085124 (2014)
    Preprint (arXiv:1305.5031, Condensed Matter)

  56. S. Hayami, M. Udagawa, and Y. Motome,
    "Partial Disorder and Metal-Insulator Transition in the Periodic Anderson Model on a Triangular Lattice"
    J. Phys. Soc. Jpn. 81,103707 (2012)
    Preprint (arXiv:1208.4691, Condensed Matter)

  57. S. Hayami, M. Udagawa, and Y. Motome,
    "Partial Disorder in the Periodic Anderson Model on a Triangular Lattice"
    J. Phys. Soc. Jpn. 80, 073704 (2011)
    Preprint(arxiv:1105.3271, Condensed Matter)

Proceedings

  1. M. Yatsushiro and S. Hayami,
    "Antisymmetric Spin–Orbit Interaction in a Locally Noncentrosymmetric CeFeSi-Type Structure"
    JPS Conf. Proc. 30, 011151 (2020)

  2. S. Hayami, Y. Yanagi, M. Naka, H. Seo, Y. Motome, H. Kusunose,
    "Multipole Description of Emergent Spin–Orbit Interaction in Organic Antiferromagnet 𝜅-(BEDT-TTF)2Cu[N(CN)2]Cl"
    JPS Conf. Proc. 30, 011149 (2020)

  3. S. Okumura, S. Hayami, Y. Kato, and Y. Motome,
    "Tracing Monopoles and Anti-monopoles in a Magnetic Hedgehog Lattice"
    JPS Conf. Proc. 30, 011010 (2020)

  4. S. Hayami and Y. Motome,
    "Multiple-Q Magnetic States in Spin-Orbit Coupled Metals"
    IEEE Transactions on Magnetics 55, 1500107 (2018)

  5. Y. Yanagi, S. Hayami, and H. Kusunose,
    "Theory of magnetoelectric response in Co4Nb2O9"
    Physica B: Condensed Matter 536, 107-110 (2018)

  6. S. Hayami, H. Kusunose, and Y. Motome,
    "Mean-field study of correlation-induced antisymmetric spin-orbit coupling in a two-orbital honeycomb model"
    Physica B: Condensed Matter 536, 649-653 (2018)

  7. Y. Sugita, S. Hayami, and Y. Motome,
    "Antisymmetric Spin-Orbit Coupling in a d-p Model on a Zigzag Chain"
    Physics Procedia 75, 419-425 (2015)

  8. S. Hayami, H. Kusunose, and Y. Motome,
    "Toroidal order in a partially disordered state on a layered triangular lattice: implication to UNi4B"
    J. Phys.: Conf. Ser. 592, 012101 (2015)
    Preprint (arXiv:1409.3657, Condensed Matter)

  9. S. Hayami, H. Kusunose, and Y. Motome,
    "Quantum spin Hall effect in a two-orbital model on a honeycomb lattice"
    J. Phys.: Conf. Ser. 592, 012131 (2015)
    Preprint (arXiv:1409.2142, Condensed Matter)

  10. S. Hayami, T. Misawa, and Y. Motome,
    "Charge Order with a Noncoplanar Triple-Q Magnetic Order on a Cubic Lattice"
    JPS Conf. Proc. 3, 016016 (2014)
    Preprint (arXiv:1310.1982, Condensed Matter)

  11. S. Hayami, M. Udagawa, and Y. Motome,
    "Carrier doping to a partially disordered state in the periodic Anderson model on a triangular lattice"
    J. Phys.: Conf. Ser. 400, 032018 (2012)
    Preprint (arXiv:1107.4401, Condensed Matter)