Small oxygen isotope shift in YBa/sub 2/Cu/sub 3/O/sub 7/

Journal Article · Fri Apr 01 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.5936· OSTI ID:5365893

Morris, D E; Kuroda, R M; Markelz, A G; Nickel, J H; Wei, J Y.T.

We find the oxygen isotope shift in YBa/sub 2/Cu/sub 3/O/sub 7/ is 0.18 +- 0.04 K with approx.85% /sup 18/O substitution, in disagreement with a recent published result. The methods used to measure a small shift in T/sub c/ of a ceramic oxide superconductor are discussed: sample preparation, reversible isotope substitution, measurement at low field, and control of temperature drift. We find ..cap alpha.. = 0.019 +- 0.005 in the relation T/sub c/proportionalM/sup -//sup ..cap alpha../. .AE

• Research Organization: Physics Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 5365893
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CERAMICS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELEMENTS
ISOTOPE EFFECTS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SAMPLE PREPARATION
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES