Can I read London penetration depth of electron-irradiated Ba1-xKxFe2As2 single-crystals on EtoBox?

London penetration depth of electron-irradiated Ba1-xKxFe2As2 single-crystals by Gierlowski, P.; Camargo, B. Cury; Abaloszewa, I.; Abaloszew, A.; Jaworski, M.; Cho, K.; Prozorov, R.; Konczykowski, M. is a scholarly article available to read on EtoBox.

What is London penetration depth of electron-irradiated Ba1-xKxFe2As2 single-crystals about?

We have characterized an electron-irradiated Ba1-xKxFe2As2 (x = 0.53) single-crystal using two different experimental techniques: magneto-optic measurements and microwave measurements. The crystal has been measured before as well as after the 2.5 MeV electron irradiation process. After irradiation it was annealed in a number of steps, between 90 deg C and 180 deg C, and measured after each annealing step. Most microwave measurements were performed by means of a copper cavity, taking advantage of the TE011 and TM110 modes, allowing for the determination of the London penetration depths changes {\delta}{\lambda}ab(T) and {\delta}{\lambda}c(T), i.e. perpendicular and parallel to the sample c-axis. Appropriate equations, based on perturbation theory, were derived to calculate the penetration depths changes {\delta}{\lambda}ab and {\delta}{\lambda}c for a rectangular prism geometry. The sample showed a full recovery of its Tc, however the observed behavior of {\delta}{\lambda}c and {\delta}{\lambda}ab was not monotonic vs annealing temperature, displaying a minimum of {\delta}{\lambda}c and {\delta}{\lambda}ab at 120 deg C. This finding was confirmed by magneto-optic measurements, where

Author

Gierlowski, P.; Camargo, B. Cury; Abaloszewa, I.; Abaloszew, A.; Jaworski, M.; Cho, K.; Prozorov, R.; Konczykowski, M.

Published

2022

Language

EN