Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Takagiwa, H."'
Autor:
Kadono, R., Satoh, K. H., Koda, A., Nagata, T., Kawano-Furukawa, H., Suzuki, J., Matsuda, M., Ohishi, K., Higemoto, W., Kuroiwa, S., Takagiwa, H., Akimitsu, J.
Publikováno v:
Phys. Rev. B 74, 024513 (2006).
The response of vortex state to the magnetic field in Nb3Sn is probed using muon spin rotation and small-angle neutron scattering. A transformation of vortex structure between hexagonal and squared lattice is observed over a relatively low field rang
Externí odkaz:
http://arxiv.org/abs/cond-mat/0605718
Autor:
Takagiwa, H., Kuroiwa, S., Yamazawa, M., Akimitsu, J., Ohishi, K., Koda, A., Higemoto, W., Kadono, R.
Publikováno v:
J. Phys. Soc. Jpn. 73, 2631-2634 (2004)
We report on the magnetic penetration depth, lambda, in a type II superconductor NbB_{2+x} determined by muon spin rotation method. We show in the sample with x=0.1 that lambda at 2.0 K is independent of an applied magnetic field. This suggests that
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412072
Autor:
Kuroiwa, S., Takagiwa, H, Yamazawa, M., Akimitsu, J., Ohishi, K., Koda, A., Higemoto, W., Kadono, R.
Publikováno v:
J. Phys. Soc. Jpn. 73, 2631 (2004)
The temperature ($T$) and magnetic field ($H$) dependence of the magnetic penetration depth, $\lambda(T,H)$, in Ca(Al$_{0.5}$Si$_{0.5}$)$_2$ exhibits significant deviation from that expected for conventional BCS superconductors. In particular, it is
Externí odkaz:
http://arxiv.org/abs/cond-mat/0402483
Autor:
Kotegawa, H., Ishida, K., Kitaoka, Y., Muranaka, T., Nakagawa, N., Takagiwa, H., Akimitsu, J.
We report $^{11}$B-NMR study on Al-doped MgB$_2$ that addresses a possible mechanism for a high superconducting (SC) transition temperature ($T_c$) of $\sim 40$ K in recently discovered MgB$_2$. The result of nuclear spin lattice relaxation rate $1/T
Externí odkaz:
http://arxiv.org/abs/cond-mat/0201578
Autor:
Ogita, N., Kariya, T., Hiraoka, K., Nagamatsu, J., Muranaka, T., Takagiwa, H., Akimitsu, J., Udagawa, M.
Phonon spectra have been investigated by micro-Raman scattering from 290 to 20K. New peaks at 500 and 674 cm-1 appear below 250K in MgB2. These peaks are explained by the Fermi resonance, where Raman-active E2g intereacts with the overtone of E1u due
Externí odkaz:
http://arxiv.org/abs/cond-mat/0106147
Publikováno v:
In Science and Technology of Advanced Materials 2006 7(1):22-25
Autor:
Kuroiwa, S., Takagiwa, H., Yamazawa, M., Akimitsu, J., Koda, A., Kadono, R., Ohishi, K., Higemoto, W., Watanabe, I.
Publikováno v:
In Science and Technology of Advanced Materials 2006 7(1):12-16
Autor:
Kuroiwa, S., Takagiwa, H., Yamazawa, M., Tomita, Y., Akimitsu, J., Ohishi, K., Koda, A., Saha, S.R., Kadono, R., Higemoto, W.
Publikováno v:
In Physica B: Physics of Condensed Matter 2006 374:251-254
Publikováno v:
In Physica C: Superconductivity and its applications 2004 412 Part 1:266-269
Autor:
Takagiwa, H. *, Kawano, A., Mizuta, Y., Yamamoto, T., Yamada, M., Ohishi, K., Muranaka, T., Akimitsu, J., Higemoto, W., Kadono, R.
Publikováno v:
In Physica B: Physics of Condensed Matter 2003 326(1):355-358