Zobrazeno 1 - 10
of 706
pro vyhledávání: '"Kuroiwa S"'
Autor:
Kadono, R., Hiraishi, M., Miyazaki, M., Satoh, K. H., Takeshita, S., Kuroiwa, S., Saura, S., Akimitsu, J.
The presence of spin-orbit (SO) interaction in a noncentrosymmetric superconductor, La2C3 (T_c~11 K) is demonstrated by muon spin rotation (muSR) in its normal state, where muSR spectra exhibit field-induced weak depolarization due to van Vleck-like
Externí odkaz:
http://arxiv.org/abs/0809.1274
Autor:
Baker, P. J., Lancaster, T., Blundell, S. J., Hayes, W., Pratt, F. L., Itoh, M., Kuroiwa, S., Akimitsu, J.
We report muon spin relaxation measurements on two Ti3+ containing perovskites, LaTiO3 and YTiO3, which display long range magnetic order at low temperature. For both materials, oscillations in the time-dependence of the muon polarization are observe
Externí odkaz:
http://arxiv.org/abs/0804.4591
Inelastic x-ray scattering and $ab$-$initio$ calculation are applied to investigate the lattice dynamics and electron-phonon coupling of the ternary silicide superconductor CaAlSi ($P/bar{6}m2$). A soft c-axis polarized mode is clearly observed along
Externí odkaz:
http://arxiv.org/abs/0802.2765
Autor:
Kuroiwa, S., Saura, Y., Akimitsu, J., Hiraishi, M., Miyazaki, M., Satoh, K. H., Takeshita, S., Kadono, R.
Publikováno v:
Phys. Rev. Lett. 100, 097002 (2008)
A complex structure of the superconducting order parameter in $Ln_2$C$_3$ ($Ln$ = La, Y) is demonstrated by muon spin relaxation ($\mu$SR) measurements in their mixed state. The muon depolarization rate [$\sigma_{\rm v}(T)$] exhibits a characteristic
Externí odkaz:
http://arxiv.org/abs/0801.4176
Autor:
Boeri, L., Kim, J. S., Giantomassi, M., Razavi, F. S., Kuroiwa, S., Akimitsu, J., Kremer, R. K.
We present a combined experimental and theoretical study of the effects of pressure on T_c of the hexagonal layered superconductors nH-CaAlSi (n = 1, 5, 6), where nH labels the different stacking variants that were recently discovered. Experimentally
Externí odkaz:
http://arxiv.org/abs/0712.2955
Electronic Structures of CaAlSi with Different Stacking AlSi Layers by First-Principles Calculations
The full-potential linear augmented plane-wave calculations have been applied to investigate the systematic change of electronic structures in CaAlSi due to different stacking sequences of AlSi layers. The present ab-initio calculations have revealed
Externí odkaz:
http://arxiv.org/abs/0710.3437
Publikováno v:
Phys. Rev. B 76, 094501 (2007).
Local magnetic field distribution B(r) in the mixed state of a boride superconductor, YB6, is studied by muon spin rotation (muSR). A comparative analysis using the modified London model and Ginzburg-Landau (GL) model indicates that the GL model exhi
Externí odkaz:
http://arxiv.org/abs/0705.3309
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