Zobrazeno 1 - 10
of 1 575
pro vyhledávání: '"Endoh, Y."'
Autor:
Bannenberg, L. J., Kakurai, K., Falus, P., Lelièvre-Berna, E., Dalgliesh, R. M., Dewhurst, C. D., Qian, F., Onose, Y., Endoh, Y., Tokura, Y., Pappas, C.
Publikováno v:
Phys. Rev. B 95, 144433 (2017)
We present a comprehensive Small Angle Neutron Scattering (SANS) and Neutron Spin Echo Spectroscopy (NSE) study of the structural and dynamical aspects of the helimagnetic transition in Fe$_{1-x}$Co$_x$Si with $x$ = 0.30. In contrast to the sharp tra
Externí odkaz:
http://arxiv.org/abs/1701.05448
Publikováno v:
Phys. Rev. B 95, 224406 (2017)
The collective spin-wave excitations in the antiferromagnetic state of $\gamma$-Fe$_{0.7}$Mn$_{0.3}$ were investigated using the inelastic neutron scattering technique. The spin excitations remain isotropic up to the high excitation energy, ${\hbar\o
Externí odkaz:
http://arxiv.org/abs/1612.02515
Autor:
Bannenberg, L. J., Kakurai, K., Qian, F., Lelièvre-Berna, E., Dewhurst, C. D., Onose, Y., Endoh, Y., Tokura, Y., Pappas, C.
Publikováno v:
Physical Review B 94(10), 104406 (2016)
Small angle neutron scattering measurements on a bulk single crystal of the doped chiral magnet Fe$_{1-x}$Co$_x$Si with $x$=0.3 reveal a pronounced effect of the magnetic history and cooling rates on the magnetic phase diagram. The extracted phase di
Externí odkaz:
http://arxiv.org/abs/1610.07063
Autor:
Bannenberg, L. J., Lefering, A. L. E., Kakurai, K., Onose, Y., Endoh, Y., Tokura, Y., Pappas, C.
Publikováno v:
Phys. Rev. B 94(13), 134433 (2016)
We present a systematic study of the ac susceptibility of the chiral magnet Fe$_{1-x}$Co$_x$Si with $x$ = 0.30 covering four orders of magnitude in frequencies from 0.1 Hz to 1 kHz, with particular emphasis to the pronounced history dependence. Chara
Externí odkaz:
http://arxiv.org/abs/1608.00404
Neutron Brillouin scattering (NBS) method was developed using a pulsed spallation neutron source, and the feasibility of NBS was demonstrated by observing ferromagnetic spin waves in La$_{0.8}$Sr$_{0.2}$MnO$_3$ and SrRuO$_3$ powders. Gapless spin-wav
Externí odkaz:
http://arxiv.org/abs/1209.1780
Autor:
Ishii, K., Ishihara, S., Murakami, Y., Ikeuchi, K., Kuzushita, K., Inami, T., Ohwada, K., Yoshida, M., Jarrige, I., Tatami, N., Niioka, S., Bizen, D., Ando, Y., Mizuki, J., Maekawa, S., Endoh, Y.
Publikováno v:
Phys. Rev. B 83, 241101(R) (2011)
We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of orbital excitations in KCuF3 . By performing the polarization analysis of the scattered photons, we disclose that the excitation between the eg orbitals and the excitations fro
Externí odkaz:
http://arxiv.org/abs/1008.0682
Autor:
Ishii, K., Hoesch, M., Inami, T., Kuzushita, K., Ohwada, K., Tsubota, M., Murakami, Y., Mizuki, J., Endoh, Y., Tsutsui, K., Tohyama, T., Maekawa, S., Yamada, K., Masui, T., Tajima, S., Kawashima, H., Akimitsu, J.
We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of high-Tc cuprates. Momentum-resolved charge excitations in the CuO2 plane are examined from parent Mott insulators to carrier-doped superconductors. The Mott gap excitation in u
Externí odkaz:
http://arxiv.org/abs/0708.3534
Autor:
Ishii, K., Tsutsui, K., Tohyama, T., Inami, T., Mizuki, J., Murakami, Y., Endoh, Y., Maekawa, S., Kudo, K., Koike, Y., Kumagai, K.
Publikováno v:
Phys. Rev. B 76, 045124 (2007)
Momentum dependent charge excitations of a two-leg ladder are investigated by resonant inelastic x-ray scattering of (La,Sr,Ca)14Cu24O41. In contrast to the case of a square lattice, momentum dependence of the Mott gap excitation of the ladder exhibi
Externí odkaz:
http://arxiv.org/abs/0705.3695
Autor:
Reznik, D., Ismer, J. -P., Eremin, I., Pintschovius, L., Arai, M., Endoh, Y., Masui, T., Tajima, S.
We present results of neutron scattering experiments on YBa2Cu3O6.95 (Tc=93K). Our results indicate that magnetic collective modes due to correlated local moments are present both above and below Tc in optimally doped YBCO. The magnon-like modes are
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610755
Publikováno v:
J. Phys. Chem. Solids, 67, 509 (2006)
Spin gap in optimally-doped YBCO was investigated by inelastic neutron scattering. We found that q-integrated spectral weight in the vicinity of the spin gap has a shape of a step function at 10K with sharp resolution-limited onset at 33 meV, i.e. th
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609752