Search Results - "Yamase, Hiroyuki"

Spin-fluctuation glue disfavors high-critical temperature of superconductivity? by Yamase, Hiroyuki

“…Abstract Antiferromagnetic fluctuations are believed to be a promising glue to drive high-temperature superconductivity especially in cuprates. Here, we…”
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Ferromagnetic and metamagnetic transitions in itinerant electron systems: a microscopic study by Yamase, Hiroyuki

“…Abstract We perform a microscopic study of itinerant ferromagnetic systems. We reveal a very rich phase diagram in the three-dimensional space spanned by the…”
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Theoretical Insights into Electronic Nematic Order, Bond-Charge Orders, and Plasmons in Cuprate Superconductors by Yamase, Hiroyuki

“…The parent compound of high-Tc cuprate superconductors is a Mott insulator described by the Heisenberg spin–spin interaction on a square lattice. With carrier…”
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Coexistence of Incommensurate Magnetism and Superconductivity in the Two-Dimensional Hubbard Model by Yamase, Hiroyuki, Eberlein, Andreas, Metzner, Walter

“…We analyze the competition of magnetism and superconductivity in the two-dimensional Hubbard model with a moderate interaction strength, including the…”
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Effect of magnetic field on spontaneous Fermi-surface symmetry breaking by Yamase, Hiroyuki

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Mean-field theory on a coupled system of ferromagnetism and electronic nematic order by Yamase, Hiroyuki

“…We analyze an effective model on a square lattice with two types of forward scattering interactions, which, respectively, drive ferromagnetism (FM) and…”
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Fermi surface in La-based cuprate superconductors from Compton scattering imaging by Yamase, Hiroyuki, Sakurai, Yoshiharu, Fujita, Masaki, Wakimoto, Shuichi, Yamada, Kazuyoshi

“…Compton scattering provides invaluable information on the underlying Fermi surface (FS) and is a powerful tool complementary to angle-resolved photoemission…”
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Detection of Acoustic Plasmons in Hole-Doped Lanthanum and Bismuth Cuprate Superconductors Using Resonant Inelastic X-Ray Scattering by Nag, Abhishek, Zhu, M, Bejas, Matías, Li, J, Robarts, H C, Yamase, Hiroyuki, Petsch, A N, Song, D, Eisaki, H, Walters, A C, García-Fernández, M, Greco, Andrés, Hayden, S M, Zhou, Ke-Jin

“…High T_{c} superconductors show a rich variety of phases associated with their charge degrees of freedom. Valence charges can give rise to charge ordering or…”
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Self-masking of spontaneous symmetry breaking in layer materials by Yamase, Hiroyuki

“…We study d-wave Fermi-surface deformations (dFSD), the so-called Pomeranchuk instability, on bilayer and infinite-layer square lattices. Since the order…”
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Spin nematic fluctuations near a spin-density-wave phase by Yamase, Hiroyuki, Zeyher, Roland

“…We study an interacting electronic system exhibiting a spin nematic instability. Using a phenomenological form for the spin fluctuation spectrum near the…”
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Origin of high-energy charge excitations observed by resonant inelastic X-ray scattering in cuprate superconductors by Greco, Andrés, Yamase, Hiroyuki, Bejas, Matías

“…The recent development of x-ray scattering techniques revealed the charge-excitation spectrum in high- T c cuprate superconductors. While the presence of a…”
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Fermi-surface truncation from thermal nematic fluctuations by Yamase, Hiroyuki, Metzner, Walter

“…We analyze how thermal fluctuations near a finite temperature nematic phase transition affect the spectral function A(k,ω) for single-electron excitations in a…”
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Plasmarons in high-temperature cuprate superconductors by Yamase, Hiroyuki, Bejas, Matías, Greco, Andrés

“…Metallic systems exhibit plasmons as elementary charge excitations. This fundamental concept was reinforced also in high-temperature cuprate superconductors…”
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Strong particle-hole asymmetry of charge instabilities in doped Mott insulators by Bejas, Matías, Greco, Andrés, Yamase, Hiroyuki

“…We study possible charge instabilities in doped Mott insulators by employing the two-dimensional t-J model with a positive value of the next nearest-neighbor…”
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Van Hove Singularity and Spontaneous Fermi Surface Symmetry Breaking in Sr3Ru2O7 by Yamase, Hiroyuki, A. Katanin, Andrey

“…The most salient features observed around a metamagnetic transition in Sr3Ru2O7 are well captured in a simple model for spontaneous Fermi surface symmetry…”
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Electronic nematic phase transition in the presence of anisotropy by Yamase, Hiroyuki

“…We study the phase diagram of electronic nematic instability in the presence of xy anisotropy. While a second-order transition cannot occur in this case,…”
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Possible quasi-one-dimensional Fermi surface in La2-xSrxCuO4 by YAMASE, H, KOHNO, H

“…To reconcile the two experimental findings on La2-xSrxCuO4, namely, Fermi surface (FS) observed by angle-resolved photoemission spectroscopy and sharp…”
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Addendum to "Van Hove Singularity and Spontaneous Fermi Surface Symmetry Breaking in Sr3Ru2O7" by Yamase, Hiroyuki

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Ferromagnetic Instability and Finite-Temperature Properties of Two-Dimensional Electron Systems with van Hove Singularities by Katanin, Andrey A, Yamase, Hiroyuki, Irkhin, Valentin Yu

“…We study a ferromagnetic tendency in the two-dimensional Hubbard model near van Hove filling by using a functional renormalization-group method. We compute…”
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Electronic Raman scattering from orbital nematic fluctuations by Yamase, Hiroyuki, Zeyher, Roland

“…We compute Raman scattering intensities via the lowest-order coupling to the bosonic propagator associated with orbital nematic fluctuations in a minimal model…”
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