Temperature dependence of the London penetration depth in Pr<sub>2</sub>CuO<sub>4</sub> from millimeter-wave optical experiments

Pronin, A. V.; Fischer, T.; Wosnitza, J.; Ikeda, A.; Naito, M.

doi:10.1016/j.physc.2011.11.006

Temperature dependence of the London penetration depth in Pr₂CuO₄ from millimeter-wave optical experiments

Pronin, A. V.; Fischer, T.; Wosnitza, J.; Ikeda, A.; Naito, M.

We have investigated the in-plane penetration depth, λ(T), of nominally undoped superconducting Pr₂CuO₄ films (T_c = 27.5 K) by measuring the phase-sensitive millimeter-wave transmission at temperatures between 2 and 30 K. The overall temperature dependence of the superfluid density, n_s = λ²(0 K)/ λ²(T), resembles the behavior typical for the cuprate superconductors [n_s(T) / ~ 1 (T/T_c)²]. However, a closer look on the penetration depth at low temperatures reveals flattening of its temperature dependence. We find λ(T) / Tⁿ with n = 2.8 ± 0.2.

Involved research facilities

High Magnetic Field Laboratory (HLD)

Physica C 473(2012), 11-13
DOI: 10.1016/j.physc.2011.11.006
Cited 3 times in Scopus

Permalink: https://www.hzdr.de/publications/Publ-16631

Temperature dependence of the London penetration depth in Pr2CuO4 from millimeter-wave optical experiments

Temperature dependence of the London penetration depth in Pr2CuO4 from millimeter-wave optical experiments

Temperature dependence of the London penetration depth in Pr₂CuO₄ from millimeter-wave optical experiments

Temperature dependence of the London penetration depth in Pr₂CuO₄ from millimeter-wave optical experiments