Search Results - "Sakai, Shiro"

Nonperturbative Calculations for Spectroscopic Properties of Cuprate High-Temperature Superconductors by Sakai, Shiro

“…We review nonperturbative numerical calculations on dynamical properties of the two-dimensional Hubbard model and their relevance to various spectroscopic…”
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Effect of Electron-Electron Interactions on Metallic State in Quasicrystals by Sakai, Shiro, Koga, Akihisa

“…We theoretically study the effect of electron-electron interactions on the metallic state of quasicrystals. To address the problem, we introduce the extended…”
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Hidden Fermionic Excitation Boosting High-Temperature Superconductivity in Cuprates by Sakai, Shiro, Civelli, Marcello, Imada, Masatoshi

“…The dynamics of a microscopic cuprate model, namely, the two-dimensional Hubbard model, is studied with a cluster extension of the dynamical mean-field theory…”
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Giant thermoelectric power factor in ultrathin FeSe superconductor by Shimizu, Sunao, Shiogai, Junichi, Takemori, Nayuta, Sakai, Shiro, Ikeda, Hiroaki, Arita, Ryotaro, Nojima, Tsutomu, Tsukazaki, Atsushi, Iwasa, Yoshihiro

“…The thermoelectric effect is attracting a renewed interest as a concept for energy harvesting technologies. Nanomaterials have been considered a key to realize…”
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Fermi Surface Expansion above Critical Temperature in a Hund Ferromagnet by Nomura, Yusuke, Sakai, Shiro, Arita, Ryotaro

“…Using a cluster extension of the dynamical mean-field theory, we show that strongly correlated metals subject to Hund's physics exhibit significant electronic…”
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Exotic pairing state in quasicrystalline superconductors under a magnetic field by Sakai, Shiro, Arita, Ryotaro

“…We theoretically study the effect of a magnetic field on quasicrystalline superconductors, by modeling them as an attractive Hubbard model on a Penrose-tiling…”
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Evolution of electronic structure of doped Mott insulators: reconstruction of poles and zeros of Green's function by Sakai, Shiro, Motome, Yukitoshi, Imada, Masatoshi

“…We study the evolution of metals from Mott insulators in the carrier-doped 2D Hubbard model using a cluster extension of the dynamical mean-field theory. While…”
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Nonlocal correlations induced by Hund's coupling: A cluster DMFT study by Nomura, Yusuke, Sakai, Shiro, Arita, Ryotaro

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Correlation-Driven Lifshitz Transition at the Emergence of the Pseudogap Phase in the Two-Dimensional Hubbard Model by Bragança, Helena, Sakai, Shiro, Aguiar, M C O, Civelli, Marcello

“…We study the relationship between the pseudogap and Fermi-surface topology in the two-dimensional Hubbard model by means of the cellular dynamical mean-field…”
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Nonempirical Calculation of Superconducting Transition Temperatures in Light‐Element Superconductors by Arita, Ryotaro, Koretsune, Takashi, Sakai, Shiro, Akashi, Ryosuke, Nomura, Yusuke, Sano, Wataru

“…Recent progress in the fully nonempirical calculation of the superconducting transition temperature (Tc) is reviewed. Especially, this study focuses on three…”
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Emergent zero-field anomalous Hall effect in a reconstructed rutile antiferromagnetic metal by Wang, Meng, Tanaka, Katsuhiro, Sakai, Shiro, Wang, Ziqian, Deng, Ke, Lyu, Yingjie, Li, Cong, Tian, Di, Shen, Shengchun, Ogawa, Naoki, Kanazawa, Naoya, Yu, Pu, Arita, Ryotaro, Kagawa, Fumitaka

“…The anomalous Hall effect (AHE) that emerges in antiferromagnetic metals shows intriguing physics and offers numerous potential applications. Magnets with a…”
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Quantum phase transition between hyperuniform density distributions by Sakai, Shiro, Arita, Ryotaro, Ohtsuki, Tomi

“…We study an electron distribution under a quasiperiodic potential in light of hyperuniformity, aiming to establish a classification and analysis method for…”
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Hidden fermionic excitation in the superconductivity of the strongly attractive Hubbard model by Sakai, Shiro, Civelli, Marcello, Nomura, Yusuke, Imada, Masatoshi

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Supercurrent distribution in real-space and anomalous paramagnetic response in a superconducting quasicrystal by Fukushima, Takumi, Takemori, Nayuta, Sakai, Shiro, Ichioka, Masanori, Jagannathan, Anuradha

“…We theoretically study the real-space distribution of the supercurrent that flows under a uniform vector potential in a two-dimensional quasiperiodic…”
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Effective on-site interaction for dynamical mean-field theory by Nomura, Yusuke, Kaltak, Merzuk, Nakamura, Kazuma, Taranto, Ciro, Sakai, Shiro, Toschi, Alessandro, Arita, Ryotaro, Held, Karsten, Kresse, Georg, Imada, Masatoshi

“…A scheme to incorporate nonlocal polarizations into the dynamical mean-field theory (DMFT) and a tailor-made way to determine the effective interaction for…”
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Effect of H2O vapor addition on the photocatalytic oxidation of ethanol, acetaldehyde and acetic acid in the gas phase on TiO2 semiconductor powders by Takeuchi, Masato, Deguchi, Junichi, Sakai, Shiro, Anpo, Masakazu

“…The effect of H2O vapor addition on the photocatalytic oxidation of ethanol, acetaldehyde and acetic acid on TiO2 semiconductor powders under UV light…”
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Itinerant ferromagnetism in the multiorbital Hubbard model: a dynamical mean-field study by Sakai, Shiro, Arita, Ryotaro, Aoki, Hideo

“…In order to resolve the long-standing issue of how itinerant ferromagnetism is affected by lattice structure and Hund's coupling, we compare various…”
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Roles of zeros of the Green function in Fermi arc and non-Fermi liquid in the two-dimensional Hubbard model by Sakai, Shiro, Motome, Yukitoshi, Imada, Masatoshi

“…We clarify effects of zeros of the Green function on a Fermi arc and on a non-Fermi liquid behavior in the two-dimensional Hubbard model by means of the…”
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Fabrication of C-Doped p-AlGaInN Light-Emitting Diodes by the Insertion of Al4C3 by Kim, Dohyung, Lee, Heesub, Yamazumi, Kazuya, Naoi, Yoshiki, Sakai, Shiro

“…A C-doped p-AlGaInN light-emitting diode (LED) fabricated from III--V nitride was grown by metalorganic vapor phase epitaxy (MOVPE) by the insertion of Al 4 C…”
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Direct Evidence that Dislocations are Non-Radiative Recombination Centers in GaN by Sugahara, Tomoya, Sato, Hisao, Hao, Maosheng, Naoi, Yoshiki, Kurai, Satoshi, Tottori, Satoru, Yamashita, Kenji, Nishino, Katsushi, Romano, Linda T., Sakai, Shiro

“…Plan-view transmission electron microscopy (TEM) and cathodoluminescence (CL) images were taken for the same sample at exactly the same location in n-type GaN…”
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