Search for Isotope Effect in Superconducting Y-Ba-Cu-O
L. C. BourneDepartment of Physics, University of California, Berkeley, California 94720Michael F. CrommieDepartment of Physics, University of California, Berkeley, California 94720Alex ZettlDepartment of Physics, University of California, Berkeley, California 94720Hans‐Conrad zur LoyeDepartment of Physics, University of California, Berkeley, California 94720Steven W. KellerDepartment of Physics, University of California, Berkeley, California 94720K. L. LearyDepartment of Physics, University of California, Berkeley, California 94720Angelica M. StacyDepartment of Physics, University of California, Berkeley, California 94720K. J. ChangDepartment of Physics, University of California, Berkeley, California 94720Marvin L. CohenDepartment of Physics, University of California, Berkeley, California 94720Donald E. MorrisDepartment of Physics, University of California, Berkeley, California 94720
1987en
ABI
Abstract
An isotope effect has been searched for in the high-${T}_{c}$ superconductor $\mathrm{Y}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ through substitution of $^{18}\mathrm{O}$ for $^{16}\mathrm{O}$. No shift in the superconducting transition temperature ${T}_{c}$ is observed by electrical resistivity or magnetic susceptibility measurements. We discuss the implications of this result for mechanisms of superconductivity in the high-${T}_{c}$ oxides.
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Cited by 30 references