Publication: Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa_{2}Cu_{3}O_{x}
Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa_{2}Cu_{3}O_{x}
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Maisuradze, A., Shengelaya, A., Amato, A., Pomjakushina, E., & Keller, H. (2011). Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa_{2}Cu_{3}O_{x}. Physical Review. B, Condensed Matter and Materials Physics, 84(18), 184523. https://doi.org/10.1103/PhysRevB.84.184523
Abstract
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Abstract
The pressure dependence of the magnetic penetration depth λ in polycrystalline samples of YBa2Cu3Ox with different oxygen concentrations x=6.45, 6.6, 6.8, and 6.98 was studied by muon spin rotation (μSR). The pressure dependence of the superfluid density ρs∝1/λ2 as a function of the superconducting transition temperature Tc is found to deviate from the usual Uemura line. The ratio (∂Tc/∂P)/(∂ρs/∂P) is smaller by a factor of ≃2 than that of the Uemura relation. In underdoped samples, the zero-temperature superconducting gap Δ0 and the
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- Maisuradze, A
- Shengelaya, A
- Amato, A
- Pomjakushina, E
- Keller, H
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Maisuradze, A., Shengelaya, A., Amato, A., Pomjakushina, E., & Keller, H. (2011). Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa_{2}Cu_{3}O_{x}. Physical Review. B, Condensed Matter and Materials Physics, 84(18), 184523. https://doi.org/10.1103/PhysRevB.84.184523
