Magnetic penetration depth and flux-pinning effects in high-Tc superconductor La1.85Sr0.15CuO

G. Aeppli; E. J. Ansaldo; J. H. Brewer; R. J. Cava; R. F. Kiefl; S. R. Kreitzman; G. M. Luke; D. R. Noakes

doi:10.1103/PhysRevB.35.7129

Magnetic penetration depth and flux-pinning effects in high-Tc superconductor La1.85Sr0.15CuO

G. Aeppli, E. J. Ansaldo, J. H. Brewer, R. J. Cava, R. F. Kiefl, S. R. Kreitzman, G. M. Luke, D. R. Noakes

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124 Scopus citations

Abstract

We have performed muon-spin-relaxation (SR) measurements on La1.85Sr0.15CuO4 above and below its superconducting transition temperature, Tc=37 K. From transverse-field SR at 6 K, the magnetic penetration depth is 2500 A, which, together with previous thermodynamic data and the London formula, implies a carrier density of 0.3×1022 cm-3. The temperature dependence of in our sintered powder sample differs from that for an ordinary homogeneous superconductor. We also show that the longitudinal- and transverse-field SR techniques are sensitive probes of Hc1 and flux-pinning effects.

Original language	English (US)
Pages (from-to)	7129-7132
Number of pages	4
Journal	Physical Review B
Volume	35
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.35.7129
State	Published - 1987
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.35.7129

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title = "Magnetic penetration depth and flux-pinning effects in high-Tc superconductor La1.85Sr0.15CuO",

abstract = "We have performed muon-spin-relaxation (SR) measurements on La1.85Sr0.15CuO4 above and below its superconducting transition temperature, Tc=37 K. From transverse-field SR at 6 K, the magnetic penetration depth is 2500 A, which, together with previous thermodynamic data and the London formula, implies a carrier density of 0.3×1022 cm-3. The temperature dependence of in our sintered powder sample differs from that for an ordinary homogeneous superconductor. We also show that the longitudinal- and transverse-field SR techniques are sensitive probes of Hc1 and flux-pinning effects.",

author = "G. Aeppli and Ansaldo, {E. J.} and Brewer, {J. H.} and Cava, {R. J.} and Kiefl, {R. F.} and Kreitzman, {S. R.} and Luke, {G. M.} and Noakes, {D. R.}",

year = "1987",

doi = "10.1103/PhysRevB.35.7129",

language = "English (US)",

volume = "35",

pages = "7129--7132",

journal = "Physical Review B",

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publisher = "American Physical Society",

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TY - JOUR

T1 - Magnetic penetration depth and flux-pinning effects in high-Tc superconductor La1.85Sr0.15CuO

AU - Aeppli, G.

AU - Ansaldo, E. J.

AU - Brewer, J. H.

AU - Cava, R. J.

AU - Kiefl, R. F.

AU - Kreitzman, S. R.

AU - Luke, G. M.

AU - Noakes, D. R.

PY - 1987

Y1 - 1987

N2 - We have performed muon-spin-relaxation (SR) measurements on La1.85Sr0.15CuO4 above and below its superconducting transition temperature, Tc=37 K. From transverse-field SR at 6 K, the magnetic penetration depth is 2500 A, which, together with previous thermodynamic data and the London formula, implies a carrier density of 0.3×1022 cm-3. The temperature dependence of in our sintered powder sample differs from that for an ordinary homogeneous superconductor. We also show that the longitudinal- and transverse-field SR techniques are sensitive probes of Hc1 and flux-pinning effects.

AB - We have performed muon-spin-relaxation (SR) measurements on La1.85Sr0.15CuO4 above and below its superconducting transition temperature, Tc=37 K. From transverse-field SR at 6 K, the magnetic penetration depth is 2500 A, which, together with previous thermodynamic data and the London formula, implies a carrier density of 0.3×1022 cm-3. The temperature dependence of in our sintered powder sample differs from that for an ordinary homogeneous superconductor. We also show that the longitudinal- and transverse-field SR techniques are sensitive probes of Hc1 and flux-pinning effects.

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DO - 10.1103/PhysRevB.35.7129

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JO - Physical Review B

JF - Physical Review B

IS - 13

ER -

Magnetic penetration depth and flux-pinning effects in high-Tc superconductor La1.85Sr0.15CuO

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