Classification of the interlayer coupling in high-{ital T}{sub {ital c}} cuprates from low-field magnetization studies

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.6752· OSTI ID:279043

Hussey, N E; Cooper, J R; Doyle, R A; Lin, C T; Liang, W Y; Sinclair, D C ^[1]; Balakrishnan, G; Paul, D M ^[2]; Revcolevschi, A ^[3]

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1. Interdisciplinary Research Centre in Superconductivity, University of Cambridge, Madingley Road, Cambridge, CB30HE (United Kingdom)
2. Department of Physics, University of Warwick, CV47AL (United Kingdom)
3. Laboratoire de Chimie des Solides, Universite Paris Sud, 91405 Orsay Cedex (France)

Low-field magnetization {ital M}({ital H}) measurements are reported for single crystals of various high-{ital T}{sub {ital c}} cuprates with different anisotropies ({gamma}={lambda}{sub {ital c}}/{lambda}{sub {ital ab}}, where {lambda}{sub {ital c}} and {lambda}{sub {ital ab}} are the {ital c}-axis and {ital ab}-plane penetration depths). For YBa{sub 2}Cu{sub 3}O{sub 7} ({gamma}{approx_equal}5) and La{sub 1.89}Sr{sub 0.11}CuO{sub 4} ({gamma}{approx_equal}12), qualitatively similar {ital M}({ital H}) behavior is observed when the magnetic field is applied both perpendicular ({ital H}{parallel}{ital c}) and parallel ({ital H}{parallel}{ital ab}) to the CuO{sub 2} planes, consistent with a description of these compounds as anisotropic three-dimensional superconductors. Tl{sub 2}Ba{sub 2}CuO{sub 6+{delta}} ({gamma}{approx_equal}25) and Bi{sub 2}Sr{sub 2}CaCu{sub 2}O ({gamma}{approx_equal}250), on the other hand, show significant differences in {ital M}({ital H}) with {ital H}{parallel}{ital ab} which can be attributed to the presence of Josephson screening currents across the layers. These observations imply that the nature of the interlayer coupling is determined primarily by the ratio of the out-of-plane coherence length {xi}{sub {ital c}} to the interlayer spacing {ital s}. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279043
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 10 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANISOTROPY
BARIUM OXIDES
BISMUTH OXIDES
CALCIUM OXIDES
COHERENCE LENGTH
CUPRATES
HIGH-TC SUPERCONDUCTORS
JOSEPHSON EFFECT
LANTHANUM OXIDES
LAYERS
MAGNETIZATION
MONOCRYSTALS
PENETRATION DEPTH
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
THALLIUM OXIDES
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS
TYPE-II SUPERCONDUCTORS
YTTRIUM OXIDES