Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Ryosuke Takehara"'
Publikováno v:
Precision Chemistry, Vol 1, Iss 6, Pp 388-394 (2023)
Externí odkaz:
https://doaj.org/article/d8953e6a19ff4050ba0023aa5e369b6d
Publikováno v:
Symmetry, Vol 14, Iss 5, p 925 (2022)
The existence and physical properties of topological excitations in ferroelectrics, especially mobile topological boundaries in one dimension, are of profound interest. Notably, topological excitations emerging in association with the neutral–ionic
Externí odkaz:
https://doaj.org/article/9c9ac1b1e24f4e968164b2b3ac535719
Autor:
Takahiro Sakurai, Ryosuke Takehara, Naoki Nagasawa, Hideyuki Takahashi, Makoto Saga, Kazuyuki Takahashi, Susumu Okubo, Hitoshi Ohta
Publikováno v:
Proceedings of the 29th International Conference on Low Temperature Physics (LT29).
Autor:
Takahiko Sekine, Ryosuke Takehara, Akiko Kobayashi, Shoji Ishibashi, Tatsuru Ishii, Biao Zhou, Kazuya Miyagawa, Eiji Nishibori, Kazushi Kanoda
Publikováno v:
Chemical Communications. 55:3327-3330
The single-component molecular conductor [Pt(dmdt)2] is a sought-after ambient-pressure molecular Dirac electron system, which exhibits a high temperature-insensitive conductivity and temperature-dependent magnetic susceptibility nearly vanishing bel
Autor:
Ryosuke Takehara, Reizo Kato, Kazuya Miyagawa, Takafumi Miyamoto, Hiroshi Okamoto, K. Sunami, Sachio Horiuchi, Kazushi Kanoda
Publikováno v:
Science Advances
Resistivity and NMR measurements demonstrate an electrical conduction mechanism by topological domain walls and solitons.
The concept of topology has been widely applied in condensed matter physics, leading to the identification of peculiar elec
The concept of topology has been widely applied in condensed matter physics, leading to the identification of peculiar elec
Autor:
Ryosuke Takehara, Kazuya Miyagawa, Y. Sakai, Hiroto Adachi, Kazushi Kanoda, K. Sunami, Sachio Horiuchi
Publikováno v:
Physical Review Research. 2:043333
Cross-correlation between magnetism and dielectric is expected to offer novel emergent phenomena. Here, magnetic excitations in the organic donor-acceptor spin-chain system, TTF-BA, with a ferroelectric ground state is investigated by $^1$H-NMR spect
Autor:
Tatsuya Miyamoto, K. Sunami, Ryosuke Takehara, Hiroshi Okamoto, Kazushi Kanoda, Kazuya Miyagawa, Fumitatsu Iwase, Masayuki Hosoda
Publikováno v:
Physical Review B. 98
There has been increasing interest in electronic ferroelectricity, which stems from deformation of the electronic wave function coupled with lattice symmetry breaking, invoking a Berry-phase description of electronic polarization beyond the conventio
Autor:
Kazuyuki Matsubayashi, Tatsuya Miyamoto, Hiroyuki Matsuzaki, Kazuya Miyagawa, Hiroshi Okamoto, Yoshiya Uwatoko, Kazushi Kanoda, Hiromi Taniguchi, Ryosuke Takehara
Publikováno v:
Physica B: Condensed Matter. 460:83-87
We investigate the electron transport in the neutral-ionic transition material, tetrathiafulvalene- p -chloranil (TTF-CA), under extremely high pressures up to 82.5 kbar, using a cubic anvil system. At room temperature, as pressure is applied, the re
Autor:
Kyohei Ishikawa, Dong Liu, Masafumi Tamura, Ryosuke Takehara, Kazushi Kanoda, Kazuya Miyagawa
Through resistivity measurements of an organic crystal hosting massless Dirac fermions with a charge-ordering instability, we reveal the effect of interactions among massless Dirac fermions on the charge transport. A low-temperature resistivity uptur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad11820db8e5260a8937af7ea5069369
Autor:
Kazuyuki Matsubayashi, Ryosuke Takehara, Yoshiya Uwatoko, Kazuya Miyagawa, Hiroshi Okamoto, Kazushi Kanoda, Hiromi Taniguchi, Tatsuya Miyamoto
Publikováno v:
Journal of the Physical Society of Japan. 84:104702
We performed electrical resistivity measurements for the quasi-two-dimensional ionic Mott insulator M2P-TCNQF4 (M2P: 5,10-dihydro-5,10-dimethylphenazine, TCNQF4: 2,3,5-tetrafluoro-7,7,8,8-tetracyanoquinodimethane) under high pressures up to 80 kbar,