Zobrazeno 1 - 10
of 686
pro vyhledávání: '"Wakimoto, S"'
Spin excitations of layered copper oxide show various characteristic features, depending on the carrier concentration. In this study, we conducted inelastic neutron scattering (INS) measurements on La$_{2-x}$Sr$_{x}$CuO$_4$ (LSCO), with $x$ = 0, 0.07
Externí odkaz:
http://arxiv.org/abs/2102.07971
Autor:
Samarakoon, A. M., Takahashi, M., Zhang, D., Yang, J., Katayama, N., Sinclair, R., Zhou, H. D., Diallo, S. O., Ehlers, G., Tennant, D. A., Wakimoto, S., Yamada, K., Chern, G-W., Sato, T. J., Lee, S. -H.
Glassiness is ubiquitous and diverse in characteristics in nature. Understanding their differences and classification remains a major scientific challenge. Here, we show that scaling of magnetic memories with time can be used to classify magnetic gla
Externí odkaz:
http://arxiv.org/abs/1708.07974
Publikováno v:
Phys. Rev. Lett. 120, 197001 (2018)
The nanometer scale lattice deformation brought about by the dopants in high temperature superconducting cuprate La$_{2-x}$Sr$_x$CuO$_4$(x=0.08) was investigated by measuring the associated X-ray diffuse scattering around multiple Bragg peaks. A char
Externí odkaz:
http://arxiv.org/abs/1707.00589
Autor:
Ishii, K., Tohyama, T., Asano, S., Sato, K., Fujita, M., Wakimoto, S., Tustsui, K., Sota, S., Miyawaki, J., Niwa, H., Harada, Y., Pelliciari, J., Huang, Y., Schmitt, T., Yamamoto, Y., Mizuki, J.
Publikováno v:
Phys. Rev. B 96, 115148 (2017)
We investigate electronic excitations in La2-x(Br,Sr)xCuO4 using resonant inelastic x-ray scattering (RIXS) at the oxygen K edge. RIXS spectra of the hole-doped cuprates show clear momentum dependence below 1 eV. The spectral weight exhibits positive
Externí odkaz:
http://arxiv.org/abs/1703.01018
Autor:
Wakimoto, S., Ishii, K., Kimura, H., Fujita, M., Dellea, G., Kummer, K., Braicovich, L., Ghiringhelli, G., Debeer-Schmitt, L. M., Granroth, G. E.
We have performed neutron inelastic scattering and resonant inelastic X-ray scattering (RIXS) at the Cu-$L_3$ edge to study high-energy magnetic excitations at energy transfers of more than 100 meV for overdoped La$_{2-x}$Sr$_{x}$CuO$_{4}$ with $x=0.
Externí odkaz:
http://arxiv.org/abs/1505.03945
Autor:
Kodama, K., Ishikado, M., Wakimoto, S., Kohou, K., Lee, C. H., Iyo, A., Eisaki, H., Shamoto, S.
We have performed neutron diffraction measurement on a single crystal of parent compound of iron-based superconductor, BaFe$_2$As$_2$ at 12~K. In order to investigate in-plane anisotropy of magnetic form factor in the antiferromagnetic phase, the det
Externí odkaz:
http://arxiv.org/abs/1406.4935
Autor:
Hiraishi, M., Kadono, R., Miyazaki, M., Yamauchi, I., Koda, A., Kojima, K. M., Ishikado, M., Wakimoto, S., Shamoto, S.
Publikováno v:
Journal of the Physical Society of Japan 83, 103707 (2014)
Spatial phase separation into mesoscopic domains of non-magnetic [superconducting (SC) below Tc = 25.5 K] and two kinds of magnetic phases, one showing disordered spin density wave (d-SDW) order and another associated with glassy weak magnetism (WM),
Externí odkaz:
http://arxiv.org/abs/1401.7780
We have performed simultaneous measurements of magnetic chirality by using polarized neutrons and electric polarization along the b-axis of single crystals of YMn$^{4+}$(Mn$_{1-x}$Ga$_{x}$)$^{3+}$O$_{5}$ with $x=0.047$ and 0.12, in which nonmagnetic
Externí odkaz:
http://arxiv.org/abs/1310.1812
Autor:
Wakimoto, S., Ishii, K., Kimura, H., Ikeuchi, K., Yoshida, M., Adachi, T., Casa, D., Fujita, M., Fukunaga, Y., Gog, T., Koike, Y., Mizuki, J., Yamada, K.
We have performed resonant inelastic x-ray scattering (RIXS) near the Cu-K edge on cuprate superconductors La(2-x)Sr(x)CuO(4), La(2-x)Ba(x)CuO(4), La(2-x)Sr(x)Cu(1-y)Fe(y)O(4) and Bi(1.76)Pb(0.35)Sr(1.89)CuO(6+d), covering underdoped to heavily overd
Externí odkaz:
http://arxiv.org/abs/1302.7023
Autor:
Al-Sawai, W., Barbiellini, B., Sakurai, Y., Itou, M., Mijnarends, P. E., Markiewicz, R. S., Kaprzyk, S., Wakimoto, S., Fujita, M., Basak, S., Lin, H., Wang, Yung Jui, Eijt, S. W. H., Schut, H., Yamada, K., Bansil, A.
Publikováno v:
Phys. Rev. B 85, 115109 (2012)
We have observed the bulk Fermi surface (FS) in an overdoped ($x$=0.3) single crystal of La$_{2-x}$Sr$_x$CuO$_4$ by using Compton scattering. A two-dimensional (2D) momentum density reconstruction from measured Compton profiles yields a clear FS sign
Externí odkaz:
http://arxiv.org/abs/1203.2865