Zobrazeno 1 - 10
of 622
pro vyhledávání: '"Reizo Kato"'
Autor:
Yugo Oshima, Taishi Takenobu, Jiang Pu, Keisuke Ishiguro, Reizo Kato, Hiroshi M. Yamamoto, Tetsuro Kusamoto
Publikováno v:
Advanced Physics Research, Vol 3, Iss 4, Pp n/a-n/a (2024)
Abstract Memristors, or more generally “memristive systems,” are nonlinear electric components that change their resistance depending on a set of state variables. Meanwhile, negative differential resistance (NDR) is an uncommon electrical propert
Externí odkaz:
https://doaj.org/article/4c5161ac1ed14839a71b6465592ac07d
Autor:
Reizo Kato, Takao Tsumuraya
Publikováno v:
Magnetochemistry, Vol 9, Iss 7, p 174 (2023)
Single-component molecular conductors exhibit a strong connection to the Dirac electron system. The formation of Dirac cones in single-component molecular conductors relies on (1) the crossing of HOMO and LUMO bands and (2) the presence of nodes in t
Externí odkaz:
https://doaj.org/article/34f9798eb91341b49db2c59be883d5ba
Autor:
Ryo Yoshimoto, Satoshi Yamashita, Hiroki Akutsu, Yasuhiro Nakazawa, Tetsuro Kusamoto, Yugo Oshima, Takehito Nakano, Hiroshi M. Yamamoto, Reizo Kato
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Magnetic properties of Mott–Hubbard systems are generally dominated by strong antiferromagnetic interactions produced by the Coulomb repulsion of electrons. Although theoretical possibility of a ferromagnetic ground state has been suggeste
Externí odkaz:
https://doaj.org/article/05ac55574b52468e84a24b2d9933d7e5
Publikováno v:
Crystals, Vol 12, Iss 1, p 102 (2022)
A molecular Mott insulator β′-EtMe3Sb[Pd(dmit)2]2 is a quantum spin liquid candidate. In 2010, it was reported that thermal conductivity of β′-EtMe3Sb[Pd(dmit)2]2 is characterized by its large value and gapless behavior (a finite temperature-li
Externí odkaz:
https://doaj.org/article/23d1bce0471f4ae9ac2ff3e2414e5a09
Autor:
Kazuya Kubo, Mamoru Sadahiro, Sonomi Arata, Norihisa Hoshino, Tomofumi Kadoya, Tomoyuki Akutagawa, Reizo Kato, Jun-ichi Yamada
Publikováno v:
Crystals, Vol 11, Iss 10, p 1154 (2021)
The effects of substituents on the arrangement of metal–dithiolene complexes based on π-conjugated systems, which are extensively used to synthesize various functional materials, have not been studied adequately. New donor-type nickel–dithiolene
Externí odkaz:
https://doaj.org/article/975b0c6130ed444aba8703c9821d2a72
Autor:
Yoshitaka Kawasugi, Hikaru Masuda, Jiang Pu, Taishi Takenobu, Hiroshi M. Yamamoto, Reizo Kato, Naoya Tajima
Publikováno v:
Crystals, Vol 11, Iss 7, p 791 (2021)
Field-effect transistors based on strongly correlated insulators are an excellent platform for studying the electronic phase transition and simultaneously developing phase transition transistors. Molecular conductors are suitable for phase transition
Externí odkaz:
https://doaj.org/article/2a8763c547d945d7bf96b12b808f5343
Autor:
Hengbo Cui, Hamish H.-M. Yeung, Yoshitaka Kawasugi, Takaaki Minamidate, Lucy K. Saunders, Reizo Kato
Publikováno v:
Crystals, Vol 11, Iss 5, p 534 (2021)
A single-component molecular crystal [Pd(dddt)2] has been shown to exhibit almost temperature-independent resistivity under high pressure, leading theoretical studies to propose it as a three-dimensional (3D) Dirac electron system. To obtain more exp
Externí odkaz:
https://doaj.org/article/c93678c7febc43a6a86d21862d4ce83a
Autor:
Yoshitaka Kawasugi, Kazuhiro Seki, Yusuke Edagawa, Yoshiaki Sato, Jiang Pu, Taishi Takenobu, Seiji Yunoki, Hiroshi M. Yamamoto, Reizo Kato
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Electron or hole doping in a Mott insulator leads to superconductivity, with the mechanism obscured by multi-orbital Fermi surface reconstructions. Here, Kawasugi et al. report doping dependent Hall coefficients and resistivity anisotropy of an organ
Externí odkaz:
https://doaj.org/article/1f80afa2a91645da93eb651b66ff72ed
Publikováno v:
Crystals, Vol 10, Iss 10, p 862 (2020)
We examine an effect of acoustic phonon scattering on the electric conductivity of a single-component molecular conductor [Pd(dddt)2] (dddt = 5,6-dihydro-1,4-dithiin-2,3-dithiolate) with a half-filled band by applying the previous calculation in a tw
Externí odkaz:
https://doaj.org/article/b574e4d02d974c9cbd433afcef6fcbbb
Publikováno v:
Molecules, Vol 24, Iss 10, p 1843 (2019)
Single-component molecular conductors form an important class of materials showing exotic quantum phenomena, owing to the range of behavior they exhibit under physical stimuli. We report the effect of high pressure on the electrical properties and cr
Externí odkaz:
https://doaj.org/article/19c2710522cc4a5693f4bcab2a2cd0e9