Observation of an oxygen isotope effect in YBa/sub 2/Cu/sub 3/O/sub 7/
Journal Article
·
· Phys. Rev. Lett.; (United States)
A small decrease in T/sub c/ of 0.3 K to 0.5 K is observed when as much as 90% of the /sup 16/O in YBa/sub 2/Cu/sub 3/O/sub 7/ is substituted with /sup 18/O. This result is consistent with our observation that there is an oxygen isotope effect in La/sub 1.85/Sr/sub 0.15/CuO/sub 4/, but in contrast with previous reports that there is no isotope effect for YBa/sub 2/Cu/sub 3/O/sub 7/. This new result suggests that phonons play an important role in the electron-pairing mechanism in YBa/sub 2/Cu/sub 3/O/sub 7/.
- Research Organization:
- College of Chemistry, University of California, Berkeley, California 94720
- OSTI ID:
- 6254782
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:11; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Oxygen isotope effect in high-temperature oxide superconductors
Observation of an oxygen isotope shift in the superconducting transition temperature of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/
Locus of pairing interaction in YBa[sub 2]Cu[sub 3]O[sub 7] by site-selective oxygen isotope shift: [sup 18]O in CuO[sub 2] plane layers
Journal Article
·
Thu Dec 10 23:00:00 EST 1987
· Science (Washington, D.C.); (USA)
·
OSTI ID:5251754
Observation of an oxygen isotope shift in the superconducting transition temperature of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/
Journal Article
·
Mon Aug 24 00:00:00 EDT 1987
· Phys. Rev. Lett.; (United States)
·
OSTI ID:6254644
Locus of pairing interaction in YBa[sub 2]Cu[sub 3]O[sub 7] by site-selective oxygen isotope shift: [sup 18]O in CuO[sub 2] plane layers
Journal Article
·
Sun Jan 03 23:00:00 EST 1993
· Physical Review Letters; (United States)
·
OSTI ID:6906147
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
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON PAIRS
EVEN-EVEN NUCLEI
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
NUCLEI
OXIDES
OXYGEN 16
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
STABLE ISOTOPES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON PAIRS
EVEN-EVEN NUCLEI
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
NUCLEI
OXIDES
OXYGEN 16
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
STABLE ISOTOPES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES