High-energy spin excitations in heavily electron-doped Pr 1-xLaCexCuO4

M. Fujita, M. Nakagawa, C. D. Frost, K. Yamada

研究成果: Article査読

6 被引用数 (Scopus)


We performed neutron scattering measurements on the overdoped sample of electron-doped superconductor Pr0.83LaCe0.17CuO 4 (Tc∼16 K) to clarify an overall spin excitation spectrum. Clear commensurate low-energy spin fluctuations were observed at the (π, π) reciprocal position below ∼10 meV. With increasing energy transfer, the width of commensurate peak drastically broadens and the intensity rapidly decreases. However, magnetic scattering intensities at high-energy region around 100 meV were confirmed to exist. These results are quantitatively same with those obtained for optimally-doped Pr0.89LaCe 0.11CuO4, while the broadening of peak-width against energy transfer is more marked and the intensities at high-energy region are weaker in the present overdoped sample. Detailed comparison of excitation spectra with the optimally-doped sysmte is given.

ジャーナルJournal of Physics: Conference Series
出版ステータスPublished - 2008 3 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)


「High-energy spin excitations in heavily electron-doped Pr <sub>1-x</sub>LaCe<sub>x</sub>CuO<sub>4</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。