Zobrazeno 1 - 10
of 106
pro vyhledávání: '"FUKUMOTO, Yoshiyuki"'
Publikováno v:
Phys. Rev. B 110, 104431 (2024)
A recently discovered kagome antiferromagnet $\rm{Y}_3\rm{Cu}_9(\rm{OH})_{19}\rm{Cl}_8$ has attracted significant interest due to its unique kagome lattice structure and magnetic properties. The kagome lattice has three types of exchange interactions
Externí odkaz:
http://arxiv.org/abs/2404.17207
Autor:
Kogure, Singo, Takeda, Masashi, Morita, Katsuhiro, Fukumoto, Yoshiyuki, Saito, Mutsuki, Tanaka, Hidekazu
Publikováno v:
J. Phys. Soc. Jpn. 92, 113703 (2023)
The series expansion method is used to study magnon spectra of the kagome system with nearest-neighbor exchange interaction $J$ and out-of-plane Dzyaloshinskii-Moriya (DM) interaction $D^{\parallel}$, which is a minimal model for Cs$_{2}$Cu$_{3}$SnF$
Externí odkaz:
http://arxiv.org/abs/2309.11778
For the spin-1/2 spherical kagom\'{e} cluster, as well as for the 2D kagom\'{e} lattice, many low-energy singlet excitations have been expected to exist in the energy region below the spin gap, which has been actually confirmed by Kihara $et \ al.$ i
Externí odkaz:
http://arxiv.org/abs/2112.07923
Autor:
Saito, Mutsuki, Takagishi, Ryunosuke, Kurita, Nobuyuki, Watanabe, Masari, Tanaka, Hidekazu, Nomura, Ryuji, Fukumoto, Yoshiyuki, Ikeuchi, Kazuhiko, Kajimoto, Ryoichi
Publikováno v:
Phys. Rev. B 105, 064424 (2022)
We show the structures of magnetic excitations in spin-1/2 kagome-lattice antiferromagnets Cs$_2$Cu$_3$SnF$_{12}$ and Rb$_2$Cu$_3$SnF$_{12}$ investigated by inelastic neutron scattering in wide energy and momentum ranges. For Cs$_2$Cu$_3$SnF$_{12}$,
Externí odkaz:
http://arxiv.org/abs/2112.00934
Publikováno v:
Phys. Rev. B 101, 174440 (2020)
We obtain a quantum dimer model (QDM) containing a Rokhsar-Kivelson (RK) point expressed by spin-1/2 Heisenberg antiferromagnets on a diamond-like decorated square lattice. This lattice has macroscopically degenerated nonmagnetic ground states, which
Externí odkaz:
http://arxiv.org/abs/2004.02174
Publikováno v:
Journal of the Physical Society of Japan 88, 084706 (2019)
The extended Hubbard model with a nearest-neighbor Coulomb repulsion on the square lattice is studied to obtain insight into the phase diagram of cuprate high $T_c$ superconductors (HTS). To pursue the hidden-order scenario proposed in [S. Chakravart
Externí odkaz:
http://arxiv.org/abs/1903.02902
Akademický článek
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Autor:
Inoue, Koki, Fukumoto, Yoshiyuki
It is known that an arbitrary quantum state can always be expressed in a pure state by preparing an appropriate ancilla system, which is called purification. The purification can always be performed when considering only a quantity not dependent on t
Externí odkaz:
http://arxiv.org/abs/1811.00235
Publikováno v:
AIP Advances 8, 101413 (2018)
We study spin-1/2 Heisenberg antiferromagnets on a diamond-like-decorated square lattice. The diamond-like-decorated square lattice is a lattice in which the bonds in a square lattice are replaced with diamond units. The diamond unit has two types of
Externí odkaz:
http://arxiv.org/abs/1809.08558
In order to clarify why the experimental magnetization curve of the spherical kagome cluster in {W72V30} at 0.5 K shows no sign of staircase behavior up to 50 T, we study the effects of Dzyaloshinsky-Moriya (DM) interactions and tilts of the g tensor
Externí odkaz:
http://arxiv.org/abs/1803.06485