Past colloquia and seminars


AC Transport Measurements of Pr0.5La0.2Ca0.3MnO3 / YBa2Cu3O7 / Pr0.5La0.2Ca0.3MnO3 Thin Film Multilayers

General public Thesis defense
30.10.2018 17:30 - 18:30

The unconventional recovery of a DC superconducting response through a high magnetic eld in a cuprate-based superconductor and manganite oxide multilayer detailed in reference [10] was further explored by AC transport in a Pr0.5La0.2Ca0.3MnO3/YBa2Cu3O7/Pr0.5La0.2Ca0.3MnO3LaAlO3(cap)
trilayer grown on LSAT. Holes were drilled through the upper Pr0.5La0.2Ca0.3MnO3layer with an Ar ion beam to enable direct electrical contacts with the YBCO layer in 4-wire contact geometry. The complex impedance was measured versus frequency, eld, temperature and current intensity. An anomaly in the DC voltage accross the sample during pure AC excitation was detailed and compared to the response of a bare YBCO thin lm.The t

When? 30.10.2018 17:30 - 18:30
Where? PER 08 0.51
Chemin du Musée 3
1700 Fribourg
speaker Mathias Soulier
Contact Prof. Christian Bernhard
Bernhard Christian
Chemin du Musée 3
1700 Fribourg
026 300 90 70