Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Sekiba, Y."'
Autor:
Nakayama, K., Sato, T., Richard, P., Kawahara, T., Sekiba, Y., Qian, T., Chen, G. F., Luo, J. L., Wang, N. L., Ding, H., Takahashi, T.
Publikováno v:
Phys. Rev. Lett. 105, 197001 (2010)
We have performed high-resolution angle-resolved photoemission spectroscopy of iron-chalcogenide superconductor Fe1.03Te0.7Se0.3 (Tc = 13 K) to investigate the electronic structure relevant to superconductivity. We observed a hole- and an electron-li
Externí odkaz:
http://arxiv.org/abs/0907.0763
Autor:
Xu, Y. -M., Richard, P., Nakayama, K., Kawahara, T., Sekiba, Y., Qian, T., Neupane, M., Souma, S., Sato, T., Takahashi, T., Luo, H., Wen, H. -H., Chen, G. -F., Wang, N. -L., Wang, Z., Fang, Z., Dai, X., Ding, H.
Publikováno v:
Nat. Commun. 2, 392 (2011)
High-temperature superconductivity in iron-arsenic materials (pnictides) near an antiferromagnetic phase raises the possibility of spin-fluctuation-mediated pairing. However, the interplay between antiferromagnetic fluctuations and superconductivity
Externí odkaz:
http://arxiv.org/abs/0905.4467
Autor:
Nakayama, K., Sato, T., Sekiba, Y., Terashima, K., Richard, P., Takahashi, T., Kudo, K., Okumura, N., Sasaki, T., Kobayashi, N.
We have performed an ultrahigh-resolution angle-resolved photoemission spectroscopy study of slightly-overdoped (Bi,Pb)2Sr2CuO6 to elucidate the origin of pseudogap. By using a newly developed xenon-plasma light source, we determined the comprehensiv
Externí odkaz:
http://arxiv.org/abs/0904.4079
Autor:
Sekiba, Y., Sato, T., Nakayama, K., Terashima, K., Richard, P., Bowen, J. H., Ding, H., Xu, Y. -M., Li, L. J., Cao, G. H., Xu, Z. -A., Takahashi, T.
Publikováno v:
New J. Phys. 11 (2009) 025020
We have performed high-resolution angle-resolved photoemission spectroscopy on heavily electron-doped non-superconducting (SC) BaFe$_{1.7}$Co$_{0.3}$As$_2$. We find that the two hole Fermi surface pockets at the zone center observed in the hole-doped
Externí odkaz:
http://arxiv.org/abs/0812.4111
Autor:
Terashima, K., Sekiba, Y., Bowen, J. H., Nakayama, K., Kawahara, T., Sato, T., Richard, P., Xu, Y. -M., Li, L. J., Cao, G. H., Xu, Z. -A., Ding, H., Takahashi, T.
Publikováno v:
Proceedings of the National Academy of Sciences of the USA (PNAS) 106, 7330-7333 (2009)
The discovery of high-temperature superconductivity in iron pnictides raised the possibility of an unconventional superconducting mechanism in multiband materials. The observation of Fermi-surface(FS)-dependent nodeless superconducting gaps suggested
Externí odkaz:
http://arxiv.org/abs/0812.3704
Superconducting gap symmetry of Ba0.6K0.4Fe2As2 studied by angle-resolved photoemission spectroscopy
Autor:
Nakayama, K., Sato, T., Richard, P., Xu, Y. -M., Sekiba, Y., Souma, S., Chen, G. F., Luo, J. L., Wang, N. L., Ding, H., Takahashi, T.
Publikováno v:
EPL 85, 67002 (2009)
We have performed high-resolution angle-resolved photoemission spectroscopy on the optimally-doped Ba$_{0.6}$K$_{0.4}$Fe$_2$As$_2$ compound and determined the accurate momentum dependence of the superconducting (SC) gap in four Fermi-surface sheets i
Externí odkaz:
http://arxiv.org/abs/0812.0663
Autor:
Sato, T., Nakayama, K., Sekiba, Y., Richard, P., Xu, Y. -M., Souma, S., Takahashi, T., Chen, G. F., Luo, J. L., Wang, N. L., Ding, H.
Publikováno v:
Phys. Rev. Lett. 103 (2009) 047002.
We have performed high-resolution angle-resolved photoemission spectroscopy on heavily overdoped KFe_2As_2 (transition temperature (Tc = 3 K). We observed several renormalized bands near the Fermi level with a renormalization factor of 2-4. While the
Externí odkaz:
http://arxiv.org/abs/0810.3047
Autor:
Ding, H., Richard, P., Nakayama, K., Sugawara, T., Arakane, T., Sekiba, Y., Takayama, A., Souma, S., Sato, T., Takahashi, T., Wang, Z., Dai, X., Fang, Z., Chen, G. F., Luo, J. L., Wang, N. L.
Publikováno v:
Europhysics Letters 83, 47001 (2008). See http://www.iop.org/EJ/abstract/0295-5075/83/4/47001
The recent discovery of superconductivity in iron-arsenic compounds below a transition temperature (Tc) as high as 55K ended the monopoly of copper oxides (cuprates) in the family of high-Tc superconductors. A critical issue in understanding this new
Externí odkaz:
http://arxiv.org/abs/0807.0419
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Akademický článek
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