Oxygen isotope effects on the superconducting transition and magnetic states within the phase diagram of Y&lt;sub&gt;1-&lt;em&gt;x&lt;/em&gt;&lt;/sub&gt;Pr&lt;em&gt;&lt;sub&gt;x&lt;/sub&gt;&lt;/em&gt;Ba&lt;sub&gt;2&lt;/sub&gt;Cu&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;7-&lt;em&gt;δ&lt;/em&gt;&lt;/sub&gt;

Khasanov, R.; Shengelaya, A.; Di Castro, D.; Morenzoni, E.; Maisuradze, A.; Savić, I.M.; Conder, K.; Pomjakushina, E.; Bussmann-Holder, A.; Keller, H.

doi:10.1103/PhysRevLett.101.077001

Oxygen isotope effects on the superconducting transition and magnetic states within the phase diagram of Y_1-xPr_xBa₂Cu₃O&l

Khasanov R, Shengelaya A, Di Castro D, Morenzoni E, Maisuradze A, Savić IM, Conder K, Pomjakushina E, Bussmann-Holder A & Keller H

Citation

Khasanov, R., Shengelaya, A., Di Castro, D., Morenzoni, E., Maisuradze, A., Savić, I. M., … Keller, H. (2008). Oxygen isotope effects on the superconducting transition and magnetic states within the phase diagram of Y_1-xPr_xBa₂Cu₃O_7-δ. Physical Review Letters, 101(7), 077001 (4 pp.). https://doi.org/10.1103/PhysRevLett.101.077001

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:19025

The various phases observed in all cuprate superconductors [superconducting (SC), spin-glass (SG), and antiferromagnetic (AFM)] were investigated with respect to oxygen-isotope (¹⁶O/¹⁸O) effects, using here as a prototype system of cuprates Y_1-xPr_xBa₂C_u3O_7-δ. All phases exhibit an isotope effect which is strongest where the respective phase terminates. In addition, the isotope effects on the magnetic phases (SG and AFM) are sign reversed as compared to the one on the superconducting phase. In the coexistence regime of the SG and SC phase a two-component behavior is observed where the isotope induced decrease of the superfluid density leads to a corresponding enhancement in the SG related density.