Zobrazeno 1 - 10
of 1 161
pro vyhledávání: '"Kumada, N"'
Autor:
Assouline, A., Pugliese, L., Chakraborti, H., Lee, Seunghun, Bernabeu, L., Jo, M., Watanabe, K., Taniguchi, T., Glattli, D. C., Kumada, N., Sim, H. -S., Parmentier, F. D., Roulleau, P.
Publikováno v:
Science 382, 1260, 2023
Flying qubits encode quantum information in propagating modes instead of stationary discrete states. Although photonic flying qubits are available, the weak interaction between photons limits the efficiency of conditional quantum gates. Conversely, e
Externí odkaz:
http://arxiv.org/abs/2412.09918
Autor:
Wakamura, T., Hashisaka, M., Hoshino, S., Bard, M., Okazaki, S., Sasagawa, T., Taniguchi, T., Watanabe, K., Muraki, K., Kumada, N.
Publikováno v:
Phys. Rev. Research 6, 013132 (2024)
We demonstrate gate-tunable giant field-dependent nonreciprocal transport (magnetochiral anisotropy) in a noncentrosymmetric superconductor $T_{\rm d}$-MoTe$_2$ in the thin limit. Giant magnetochiral anisotropy (MCA) with a rectification coefficient
Externí odkaz:
http://arxiv.org/abs/2303.09747
Autor:
Yoneyama, N., Nuryadin, M. K., Tsumuraya, T., Iguchi, S., Takei, T., Kumada, N., Nagao, M., Tanaka, I., Sasaki, T.
Publikováno v:
J. Phys. Soc. Jpn. vol. 91 113704 (2022)
We report the band structure calculations and the experimental results of resistivity and magnetic susceptibility in a spin-1/2 (BEDT-TTF)$^{\bullet +}$ monomer Mott insulator (BEDT-TTF)Cu[N(CN)$_2$]$_2$. The band calculations indicate a Dirac semime
Externí odkaz:
http://arxiv.org/abs/2209.13996
Autor:
Assouline, A., Jo, M., Brasseur, P., Watanabe, K., Taniguchi, T., Jolicoeur, T., Roche, P., Glattli, D. C., Kumada, N., Parmentier, F. D., Roulleau, P.
Publikováno v:
Nature Physics 17, 1369 (2021)
Magnons enable transferring a magnetic moment or spin over macroscopic distance. In quantum Hall ferromagnet, it has been predicted in the early 90s that spin and charges are entangled, meaning that any change of the spin texture modifies the charge
Externí odkaz:
http://arxiv.org/abs/2102.02068
Autor:
Jo, M., Brasseur, P., Assouline, A., Fleury, G., Sim, H. -S., Watanabe, K., Taniguchi, T., Dumnernpanich, W., Roche, P., Glattli, D. C., Kumada, N., Parmentier, F. D., Roulleau, P.
Publikováno v:
Phys. Rev. Lett. 126, 146803 (2021)
Graphene is a very promising test-bed for the field of electron quantum optics. However, a fully tunable and coherent electronic beam splitter is still missing. We report the demonstration of electronic beam splitters in graphene that couple quantum
Externí odkaz:
http://arxiv.org/abs/2011.04958
Autor:
Kumada, N., Tu, N. -H., Sasaki, K. -i., Ota, T., Hashisaka, M., Sasaki, S., Onomitsu, K., Muraki, K.
Publikováno v:
Phys. Rev. B 101, 205205 (2020)
We investigate a way to suppress high-frequency coupling between a gate and low-dimensional electron systems in the gigahertz range by measuring the velocity of edge magnetoplasmons (EMPs) in InAs quantum Hall systems.We compare the EMPvelocity in th
Externí odkaz:
http://arxiv.org/abs/2006.01996
Autor:
Matsuda, M., Dissanayake, S. E., Abernathy, D. L., Qiu, Y., Copley, J. R. D., Kumada, N., Azuma, M.
Inelastic neutron scattering study has been performed in an S=3/2 bilayer honeycomb lattice compound Bi3Mn4O12(NO3) at ambient and high magnetic fields. Relatively broad and monotonically dispersive magnetic excitations were observed at ambient field
Externí odkaz:
http://arxiv.org/abs/1910.03816
Autor:
Rubel, Mirza H. K., Hossain, Khandaker Monower, Khatun, Anjuman Ara, Hossain, M. Anwar, Rahaman, M. M., Ali, M. Mozahar, Hossain, M. M., Hossain, J., Rasadujjaman, Md., Kojima, S., Kumada, N.
Numerous physical properties of CaPd3Ti4O12 (CPTO) and CaPd3V4O12 (CPVO) double perovskites have been explored based on density functional theory (DFT). The calculated structural parameters fairly agree with the experimental data to confirm their sta
Externí odkaz:
http://arxiv.org/abs/1904.05099
Autor:
Parmentier, F. D., Cazimajou, T., Sekine, Y., Hibino, H., Irie, H., Glattli, D. C., Kumada, N., Roulleau, P.
Publikováno v:
Sci. Rep. 6, 38393 (2016)
We have observed the well-kown quantum Hall effect (QHE) in epitaxial graphene grown on silicon carbide (SiC) by using, for the first time, only commercial NdFeB permanent magnets at low temperature. The relatively large and homogeneous magnetic fiel
Externí odkaz:
http://arxiv.org/abs/1708.06137
Publikováno v:
Nature Communications 6, 8068 (2015)
Owing to a linear and gapless band structure and a tunability of the charge carrier type, graphene offers a unique system to investigate transport of Dirac Fermions at p-n junctions (PNJs). In a magnetic field, combination of quantum Hall physics and
Externí odkaz:
http://arxiv.org/abs/1604.02876