Magnetic field dependence of the oxygen isotope effect on the magnetic penetration depth in hole-doped cuprate superconductors

Abstract

The magnetic field dependence of the oxygen-isotope (^{16}O/^{18}O) effect (OIE) on the in-plane magnetic field penetration depth λ_{ab} was studied in the hole-doped high-temperature cuprate superconductors YBa_2Cu_4O_8, Y_0.8Pr_0.2Ba_2Cu_3O_7-δ, and Y_0.7Pr_0.3Ba_2Cu_3O_7-δ. It was found that λ_ab for the ^{16}O substituted samples increases stronger with increasing magnetic field than for the ^{18}O ones. The OIE on λ_ab decreases by more than a factor of two with increasing magnetic field from μ_0H=0.2 T to μ_0H=0.6 T. This effect can be explained by the isotope dependence of the in-plane charge carrier mass m^\ast_{ab}.

arXiv comment4 pages, two figures

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Cited by in corpus (10)

• Oxygen isotope effect on superconductivity and magnetism in Y_1-xPr_xBa_2Cu_3O_7-δ
• Muon-spin rotation measurements of the penetration depth of the Mo_3Sb_7 superconductor
• Conventional superconductivity and charge-density-wave ordering in Ba1-xNaxTi2Sb2O
• Nodeless superconductivity in the infinite-layer electron-doped Sr_0.9La_0.1CuO_2 cuprate superconductor
• Magnetic mechanism of quasiparticle pairing in hole-doped cuprate superconductors
• Superconducting pairing and the pseudogap in nematic striped La2-xSrxCuO4
• Relationship between and implications of the isotope and pressure effects on transition temperature, penetration depths and conductivities
• Study of the in-plane magnetic penetration depth in the cuprate superconductor Ca_2-xNa_xCuO_2Cl_2: role of the apical sites
• Oxygen isotope effect on the superfluid density within the $d-$wave and $s-$wave pairing channels of YBa${}_2$Cu${}_4$O${}_8$
• Isotope effect on the transition temperature $T_c$ in Fe-based superconductors: the current status