Zobrazeno 1 - 10
of 8 422
pro vyhledávání: '"KATO, R."'
We found a plateau in the magnitude of the isolated magnetic moments as a function of the anisotropy of the transfer integral (t'/t) in the gapless quantum spin liquid (QSL) phase of an S=1/2 triangular lattice molecular solid X[Pd(dmit)2]2 (dmit = 1
Externí odkaz:
http://arxiv.org/abs/2307.14563
Publikováno v:
J. Phys. Soc. Jpn., 92, 053701 (2023)
We investigated the magnetoresistance and the Hall effect in an organic massless Dirac fermion system $\alpha$-(BETS)$_2$I$_3$ under pressure. The Fermi energy of this system is slightly far away from the Dirac points, and thus the $\nu =1$ quantum H
Externí odkaz:
http://arxiv.org/abs/2304.10069
Autor:
Saitou, Y., Ichikawa, N., Yamamoto, R., Kitamata, D., Suzuki, M., Yanagita, Y., Namaizawa, T., Komuro, S., Furukawa, T., Kato, R., Itou, T.
Publikováno v:
Phys. Rev. Research 4, 023196 (2022)
The study of non-s-wave unconventional superconductivities in strongly correlated-electron systems has been a central issue in condensed matter physics for more than 30 years. In such unconventional superconductivities, d-wave Cooper pairing with ant
Externí odkaz:
http://arxiv.org/abs/2206.05680
Publikováno v:
J. Phys. Soc. Jpn., 91, 045001 (2022)
We investigated the interlayer magnetoresistance in an organic massless Dirac electron system $\alpha$-(BEDT-TTF)$_2$I$_3$ under pressure. We experimentally demonstrate that the width of the zero mode owing to carrier scattering is much narrower than
Externí odkaz:
http://arxiv.org/abs/2203.07666
A Dirac electron system in solids mimics a relativistic quantum physics that is compatible with Maxwell's equations, by which we anticipate unified electromagnetic responses. We find a large orbital diamagnetism only along the interplane direction an
Externí odkaz:
http://arxiv.org/abs/2104.13547
Autor:
Sunami, K., Takehara, R., Katougi, A., Miyagawa, K., Horiuchi, S., Kato, R., Miyamoto, T., Okamoto, H., Kanoda, K.
Publikováno v:
Phys. Rev. B 103, 134112 (2021)
In a one-dimensional (1D) system with degenerate ground states, their domain boundaries, dubbed solitons, emerge as topological excitations often carrying unconventional charges and spins; however, the soliton excitations are only vital in the non-or
Externí odkaz:
http://arxiv.org/abs/2008.09337
Autor:
Yamashita, M., Sato, Y., Tominaga, T., Kasahara, Y., Kasahara, S., Cui, H., Kato, R., Shibauchi, T., Matsuda, Y.
Publikováno v:
Phys. Rev. B 101, 140407 (2020)
EtMe$_3$Sb[Pd(dmit)$_2$]$_2$, an organic Mott insulator with nearly isotropic triangular lattice, is a candidate material for a quantum spin liquid, in which the zero-point fluctuations do not allow the spins to order. The itinerant gapless excitatio
Externí odkaz:
http://arxiv.org/abs/2002.11838
Autor:
Ni, J. M., Pan, B. L., Huang, Y. Y., Zeng, J. Y., Yu, Y. J., Cheng, E. J., Wang, L. S., Kato, R., Li, S. Y.
Publikováno v:
Phys. Rev. Lett. 123, 247204 (2019)
We present the ultralow-temperature specific heat and thermal conductivity measurements on single crystals of triangular-lattice organic compound EtMe$_3$Sb[Pd(dmit)$_2$]$_2$, which has long been considered as a gapless quantum spin liquid candidate.
Externí odkaz:
http://arxiv.org/abs/1904.10395
Autor:
Bourgeois-Hope, P., Laliberté, F., Lefrançois, E., Grissonnanche, G., de Cotret, S. René, Gordon, R., Kitou, S., Sawa, H., Cui, H., Kato, R., Taillefer, L., Doiron-Leyraud, N.
Publikováno v:
Phys. Rev. X 9, 041051 (2019)
The thermal conductivity $\kappa$ of the quasi-2D organic spin-liquid candidate EtMe$_3$Sb[Pd(dmit)$_2$]$_2$ (dmit-131) was measured at low temperatures, down to 0.07 K. We observe a vanishingly small residual linear term $\kappa_0/T$, in $\kappa/T$
Externí odkaz:
http://arxiv.org/abs/1904.10402