Ce-substitution effects on the spin excitation spectra in Pr1.4-xLa0.6CexCuO4+δ
Ce-substitution effects on the spin excitation spectra in Pr1.4-xLa0.6CexCuO4+δ
复制标题
Ce 取代对 Pr1.4-xLa0.6CexCuO4+δ 中自旋激发光谱的影响
DOI:
10.1088/1742-6596/807/5/052009
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Fujita M
中科院分区:
文献类型:
--
作者:
Asano S;Tsutsumi K;Sato K;Fujita M
We performed inelastic neutron scattering measurements on as-grown single crystals of electron-doped Pr 1.4-x La 0.6 Ce x CuO 4+ δ with x= 0, 0.08 and 0.18. We succeeded in observing the spin excitation spectra up to 300meV in the all samples. In both parent and electron-doped samples, a magnetic signal was observed at the magnetic zone center (0.5, 0.5) in the low-energy region below 40 meV. In the high-energy region above 100 meV, a double-peak structure reflecting the spin-wave excitation was detected in the constant-energy spectrum for the parent sample, while a single broad peak centered at (0.5, 0.5) was observed for the Ce-doped samples. These results suggest that the dispersion of spin excitation spectra become steeper upon doping. Furthermore, we newly found a drastic reduction of the magnetic intensity with Ce-substitution.
DOI:
--
发表时间:
2009
期刊:
J.Phys.Soc.Jpn. 78
影响因子:
--
作者:
尾山公一;ほか;曽我部正博;横尾哲也
通讯作者:
横尾哲也
影响因子:
1.7
作者:
Fujita, Masaki;Matsuda, Masaaki;Yamada, Kazuyoshi
通讯作者:
Yamada, Kazuyoshi
DOI:
--
发表时间:
2006
期刊:
Phys.Rev.Lett. 96
影响因子:
--
作者:
S.D.Wilson;Shiliang Li;H.Woo;P.Dai;H.A.Mook;C.D.Frost;Seiki Komiya;Yoichi Ando
通讯作者:
Yoichi Ando