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

doi:10.1103/PhysRevB.47.5320

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

Department of Physics

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Abstract

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.

Original language	English
Pages (from-to)	5320-5324
Number of pages	5
Journal	Physical Review B
Volume	47
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.47.5320
Publication status	Published - 1993

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.47.5320

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

abstract = "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.",

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T1 - Temperature dependence of the dynamic susceptibility χ''(ω) in superconducting YBa2Cu3O6.6 (Tc=53 K)

AU - Sternlieb, B. J.

AU - Shirane, G.

AU - Tranquada, J. M.

AU - Sato, M.

AU - Shamoto, S.

PY - 1993

Y1 - 1993

N2 - 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.

AB - 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.

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

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