Magnetic penetration depth and flux-pinning effects in high-T/sub c/ superconductor La/sub 1. 85/Sr/sub 0. 15/CuO
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We have performed muon-spin-relaxation (..mu..SR) measurements on La/sub 1.85/Sr/sub 0.15/CuO/sub 4/ above and below its superconducting transition temperature, T/sub c/ = 37 K. From transverse-field ..mu..SR at 6 K, the magnetic penetration depth is lambdaapprox. =2500 A, which, together with previous thermodynamic data and the London formula, implies a carrier density of 0.3 x 10/sup 22/ cm/sup -3/. The temperature dependence of lambda in our sintered powder sample differs from that for an ordinary homogeneous superconductor. We also show that the longitudinal- and transverse-field ..mu..SR techniques are sensitive probes of H/sub c//sub 1/ and flux-pinning effects.
- Research Organization:
- ATandT Bell Laboratories, Murray Hill, New Jersey 07974
- OSTI ID:
- 6655995
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:13; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetic field penetration depth of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/ measured by muon spin relaxation
Far-infrared composite-medium study of sintered La/sub 2/NiO/sub 4/ and La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4-//sub y/
Upper critical fields and high superconducting transition temperatures of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/ and La/sub 1. 85/Ba/sub 0. 15/CuO/sub 4/
Journal Article
·
Fri May 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6093576
Far-infrared composite-medium study of sintered La/sub 2/NiO/sub 4/ and La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4-//sub y/
Journal Article
·
Thu Oct 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6040373
Upper critical fields and high superconducting transition temperatures of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/ and La/sub 1. 85/Ba/sub 0. 15/CuO/sub 4/
Journal Article
·
Sun Mar 01 23:00:00 EST 1987
· Appl. Phys. Lett.; (United States)
·
OSTI ID:6973293
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC FLUX
MUON PROBES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PENETRATION DEPTH
POWDERS
PROBES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VERY LOW TEMPERATURE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC FLUX
MUON PROBES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PENETRATION DEPTH
POWDERS
PROBES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VERY LOW TEMPERATURE