Temperature dependence of the dynamic susceptibility [chi][prime][prime]([omega]) in superconducting YBa[sub 2]Cu[sub 3]O[sub 6. 6] ([ital T][sub [ital c]]=53 K)
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Department of Physics, Nagoya University, Nagoya 464-01 (Japan)
Temperature-dependent neutron-scattering measurements of the dynamic susceptibility [chi][prime][prime]([omega]) in single-crystal YBa[sub 2]Cu[sub 3]O[sub 6.6] ([ital T][sub [ital c]]=53 K) are reported. At high temperatures ([ital T][approx gt]100 K) a universal dependence of [chi][prime][prime]([omega]) on the ratio [omega]/[ital T] has been observed. A spin pseudogap [omega][sub [ital g]][congruent]10 meV results in a breakdown in this behavior at temperatures well above [ital T][sub [ital c]]. Below [similar to]40 K the scattering intensities at energy transfers of [Delta][ital E]=5 and 8 meV demonstrate a surprising recovery with decreasing temperature. The behavior of [chi][prime][prime]([omega]) over the range of energies (3--16 meV) and temperatures (1.5--300 K) studied presents a strong constraint on theoretical descriptions of YBa[sub 2]Cu[sub 3]O[sub 6+[ital x]].
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6952879
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 47:9; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DIFFRACTION
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MONOCRYSTALS
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DIFFRACTION
HIGH-TC SUPERCONDUCTORS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MONOCRYSTALS
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES