Zobrazeno 1 - 10
of 1 986
pro vyhledávání: '"Takayanagi H"'
Multi-component order parameter superconductivity of Sr$_2$RuO$_4$ revealed by topological junctions
Autor:
Anwar, M. S., Ishiguro, R., Nakamura, T., Yakabe, M., Yonezawa, S., Takayanagi, H., Maeno, Y.
Publikováno v:
Phys. Rev. B 95, 224509 (2017)
Single crystals of the Sr$_2$RuO$_4$-Ru eutectic system are known to exhibit enhanced superconductivity at 3~K, in addition to the bulk superconductivity of Sr$_2$RuO$_4$ at 1.5~K. The 1.5-K phase is believed to be a spin-triplet, chiral $p$-wave sta
Externí odkaz:
http://arxiv.org/abs/1703.01814
Autor:
Anwar, M. S., Lee, S. R., Ishiguro, R., Sugimoto, Y., Tano, Y., Kang, S. J., Shin, Y. J., Yonezawa, S., Manske, D., Takayanagi, H., Noh, T. W., Maeno, Y.
Publikováno v:
Nat. Commun. 7, 13220 (2016)
Efforts have been ongoing to establish superconducting spintronics utilizing ferromagnet/superconductor heterostructures1. Previously reported devices are based on spin-singlet superconductors (SSCs), where the spin degree of freedom is lost. Spin-po
Externí odkaz:
http://arxiv.org/abs/1603.00971
Autor:
Anwar, M. S., Nakamura, Taketomo, Yonezawa, S., Yakabe, M., Ishiguro, R., Takayanagi, H., Maeno, Y.
A spontaneous symmetry breaking in a system often results in domain wall formation. The motion of such domain walls is utilized to realize novel devices like racetrack-memories, in which moving ferromagnetic domain walls store and carry information.
Externí odkaz:
http://arxiv.org/abs/1308.2460
Autor:
Kim, S., Ishiguro, R., Kamio, M., Doda, Y., Watanebe, E., Shibata, K., Hirakawa, K., Takayanagi, H.
We report the transport measurements on the InAs self-assembled quantum dots (SAQDs) which have a unique structural zero-dimensionality, coupled to a superconducting quantum interference device (SQUID). Owing to the SQUID geometry, we directly observ
Externí odkaz:
http://arxiv.org/abs/1010.5892
Autor:
Sasakura, H., Kuramitsu, S., Hayashi, Y., Tanaka, K., Akazaki, T., Hanamura, E., Inoue, R., Takayanagi, H., Asano, Y., Suemune, I.
Publikováno v:
Phys. Rev. Lett. 107, 157403 (2011)
We demonstrate Cooper-pair's drastic enhancement effect on band-to-band radiative recombination in a semiconductor. Electron Cooper pairs injected from a superconducting electrode into an active layer by the proximity effect recombine with holes inje
Externí odkaz:
http://arxiv.org/abs/0910.5161
Autor:
Deppe, Frank, Mariantoni, Matteo, Menzel, E. P., Marx, A., Saito, S., Kakuyanagi, K., Tanaka, H., Meno, T., Semba, K., Takayanagi, H., Solano, E., Gross, R.
Publikováno v:
Nature Physics 4, pp686-691 (2008)
Superconducting qubits behave as artificial two-level atoms and are used to investigate fundamental quantum phenomena. In this context, the study of multi-photon excitations occupies a central role. Moreover, coupling superconducting qubits to on-chi
Externí odkaz:
http://arxiv.org/abs/0805.3294
Autor:
Deppe, F., Mariantoni, M., Menzel, E. P., Saito, S., Kakuyanagi, K., Tanaka, H., Meno, T., Semba, K., Takayanagi, H., Gross, R.
Publikováno v:
Phys. Rev. B 76, 214503 (2007)
We present a systematic study of the phase-coherent dynamics of a superconducting three-Josephson-junction flux qubit. The qubit state is detected with the integrated-pulse method, which is a variant of the pulsed switching DC SQUID method. In this s
Externí odkaz:
http://arxiv.org/abs/0710.4455
Autor:
Kakuyanagi, K., Meno, T., Saito, S., Nakano, H., Semba, K., Takayanagi, H., Deppe, F., Shnirman, A.
In order to gain a better understanding of the origin of decoherence in superconducting flux qubits, we have measured the magnetic field dependence of the characteristic energy relaxation time ($T_1$) and echo phase relaxation time ($T_2^{\rm echo}$)
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609564
Autor:
Yaguchi, H., Takizawa, K., Kawamura, M., Kikugawa, N., Maeno, Y., Meno, T., Akazaki, T., Semba, K., Takayanagi, H.
We have investigated the tunnelling properties of the interface between superconducting Sr2RuO4 and a single Ru inclusion in eutectic. By using a micro-fabrication technique, we have made Sr2RuO4/Ru junctions on the eutectic system that consists of S
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609444
Autor:
Sasaki, S., Kang, S., Kitagawa, K., Yamaguchi, M., Miyashita, S., Maruyama, T., Tamura, H., Akazaki, T., Hirayama, Y., Takayanagi, H.
We have performed low-temperature transport measurements on a double quantum dot-quantum wire coupled device and demonstrated non-local control of the Kondo effect in one dot by manipulating the electronic spin states of the other. We discuss the mod
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602373