Spin dynamics in an electron-doped high-Tc superconductor

Masaki Fujita, M. Matsuda, K. Yamada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have performed inelastic neutron-scattering measurements on an electron-doped superconductor, Pr1 xLaCexCuO4 to clarify the doping dependence of spin correlations. In measured samples with x=0.09, 0.11, 0.13, 0.15 and 0.18, the low-energy spin correlations are commensurate, unlike in hole-doped systems, which have incommensurate spin correlations. Upon electron doping, the commensurate peaks centered at the (π, π) reciprocal position are more drastically broadened at a higher energy, suggesting a reduction of slope of spin excitations ω/q namely an effective nearest exchange constant Jeff.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages529-530
Number of pages2
DOIs
Publication statusPublished - 2006 Dec 1
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: 2006 Aug 102006 Oct 17

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period06/8/1006/10/17

Keywords

  • Electron-doped cuprate
  • Neutron scattering
  • Spin correlations

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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