Absence of the 1/8 -anomaly in oxygen isotope effect on YBa$_{2}$Cu$_{3}$O$_{y}$

K. Kamiya; T. Masui; S. Tajima; H. Bando; Y. Aiura

doi:10.1103/PhysRevB.89.060505

paper

Absence of the 1/8 -anomaly in oxygen isotope effect on YBa $_{2}$ Cu $_{3}$ O $_{y}$

arXiv:1402.1942 · doi:10.1103/PhysRevB.89.060505

Abstract

We have prepared oxygen isotope exchanged crystals of impurity-free YBCO with various oxygen concentents, and examined pure doping ( $p$ ) dependance of isotope effect on superconducting transition temperature. With decreasing oxygen contents, the isotope exponent $α$ monotonously increases without any anomaly around $p = 1/8$ . The monotonous increase in $α$ indicates that phonons are involved in the mechanism which causes the monotonous $T_{c}$ suppression with underdoping.

4 pages, 4 figures

References in corpus (1)

An Isotopic Fingerprint of Electron-Phonon Coupling in High-Tc Cuprates

Absence of the 1/8 -anomaly in oxygen isotope effect on YBa2​Cu3​Oy​

Abstract

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Absence of the 1/8 -anomaly in oxygen isotope effect on YBa $_{2}$ Cu $_{3}$ O $_{y}$