Ordered water inside carbon nanotubes: formation of pentagonal to octagonal ice-nanotubes Y Maniwa, H Kataura, M Abe, A Udaka, S Suzuki, Y Achiba, H Kira, ... Chemical Physics Letters 401 (4-6), 534-538, 2005 | 366 | 2005 |

Band structure of studied by angle-resolved photoemission T Takahashi, H Matsuyama, H Katayama-Yoshida, Y Okabe, S Hosoya, ... Physical Review B 39 (10), 6636, 1989 | 260 | 1989 |

Quantum Monte Carlo Simulation of the Spin 1/2 *XXZ* Model on the Square LatticeY Okabe, M Kikuchi Journal of the Physical Society of Japan 57 (12), 4351-4358, 1988 | 140 | 1988 |

Synchrotron-radiation photoemission study of the high- superconductor T Takahashi, F Maeda, H Arai, H Katayama-Yoshida, Y Okabe, T Suzuki, ... Physical Review B 36 (10), 5686, 1987 | 135 | 1987 |

Evidence for non-metallic nature of the BiO plane in Bi_{2}CaSr_{2}Cu_{2}O_{8} from scanning tunnelling spectroscopyM Tanaka, T Takahashi, H Katayama-Yoshida, S Yamazaki, M Fujinami, ... Nature 339 (6227), 691-693, 1989 | 119 | 1989 |

Impurity-state-like nature of Fermi-liquid states in Bi2Sr2CaCu2O8 observed by photoemission and x-ray absorption H Matsuyama, T Takahashi, H Katayama-Yoshida, T Kashiwakura, ... Physica C: Superconductivity 160 (5-6), 567-570, 1989 | 107 | 1989 |

Probability-changing cluster algorithm for two-dimensional XY and clock models Y Tomita, Y Okabe Physical Review B 65 (18), 184405, 2002 | 103 | 2002 |

Three-dimensional antiferromagnetic q-state Potts models: application of the Wang-Landau algorithm C Yamaguchi, Y Okabe Journal of Physics A: Mathematical and General 34 (42), 8781, 2001 | 102 | 2001 |

Magnetic frustrations in the Shastry–Sutherland system ErB4 S Michimura, A Shigekawa, F Iga, M Sera, T Takabatake, K Ohoyama, ... Physica B: Condensed Matter 378, 596-597, 2006 | 96 | 2006 |

Convergence and refinement of the Wang–Landau algorithm HK Lee, Y Okabe, DP Landau Computer physics communications 175 (1), 36-40, 2006 | 94 | 2006 |

Photoemission study of single-crystalline T Takahashi, F Maeda, H Katayama-Yoshida, Y Okabe, T Suzuki, ... Physical Review B 37 (16), 9788, 1988 | 92 | 1988 |

Basin hopping with occasional jumping M Iwamatsu, Y Okabe Chemical Physics Letters 399 (4-6), 396-400, 2004 | 89 | 2004 |

Mapping the Monte Carlo scheme to Langevin dynamics: a Fokker-Planck approach XZ Cheng, MBA Jalil, HK Lee, Y Okabe Physical review letters 96 (6), 067208, 2006 | 80 | 2006 |

Large-scale Monte Carlo simulation of two-dimensional classical XY model using multiple GPUs Y Komura, Y Okabe Journal of the Physical Society of Japan 81 (11), 113001, 2012 | 79 | 2012 |

Probability-changing cluster algorithm for Potts models Y Tomita, Y Okabe Physical Review Letters 86 (4), 572, 2001 | 71 | 2001 |

Monte Carlo simulation of the Ising model on the Penrose lattice Y Okabe, K Niizeki Journal of the Physical Society of Japan 57 (1), 16-19, 1988 | 69 | 1988 |

Machine-learning studies on spin models K Shiina, H Mori, Y Okabe, HK Lee Scientific reports 10 (1), 2177, 2020 | 66 | 2020 |

Finite-size scaling for the Ising model on the Möbius strip and the Klein bottle K Kaneda, Y Okabe Physical Review Letters 86 (10), 2134, 2001 | 63 | 2001 |

Universal finite-size scaling functions for critical systems with tilted boundary conditions Y Okabe, K Kaneda, M Kikuchi, CK Hu Physical Review E 59 (2), 1585, 1999 | 57 | 1999 |

Critical behavior of surface-layer magnetization at bulk T c: Extraordinary transition K Ohno, Y Okabe Physical Review B 39 (13), 9764, 1989 | 55 | 1989 |