Temperature dependence of the dynamic susceptibility χ''(ω) in superconducting YBa2Cu3O6.6 (Tc=53 K)

B. J. Sternlieb, G. Shirane, J. M. Tranquada, M. Sato, S. Shamoto

研究成果: Article同行評審

118 引文 斯高帕斯(Scopus)

摘要

Temperature-dependent neutron-scattering measurements of the dynamic susceptibility χ''(ω) in single-crystal YBa2Cu3O6.6 (Tc=53 K) are reported. At high temperatures (T100 K) a universal dependence of χ''(ω) on the ratio ω/T has been observed. A spin pseudogap ωg10 meV results in a breakdown in this behavior at temperatures well above Tc. Below ∼40 K the scattering intensities at energy transfers of ΔE=5 and 8 meV demonstrate a surprising recovery with decreasing temperature. The behavior of χ''(ω) over the range of energies (3-16 meV) and temperatures (1.5-300 K) studied presents a strong constraint on theoretical descriptions of YBa2Cu3O6+x.

原文English
頁(從 - 到)5320-5324
頁數5
期刊Physical Review B
47
發行號9
DOIs
出版狀態Published - 1993

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學

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