Highly homogeneous YBCO/LSMO nanowires for photoresponse experiments
Journal article, 2014
By using nanolithography and a soft etching procedure, we have realized YBa2Cu3O7-x/La0.7Sr0.3MnO3 (YBCO/LSMO) nanowires, with cross sections down to 100 x 50 nm(2) that ensure the cover age of areas up to 10 x 30 mu m(2). The LSMO layer acts as a capping for YBCO, minimizing the degradation of the superconducting properties taking place during the patterning; moreover, as a ferromagnetic manganite, it is expected to accelerate the relaxation dynamics of quasiparticles in YBCO, making such a system potentially attractive for applications in superconducting ultrafast optoelectronics. The reproducibility of the values of the critical current densities measured in different devices with the same geometry makes our nanowires ideal candidates for photoresponse experiments. First measurements have shown a satisfactory photoresponse from YBCO/LSMO devices.
hybrid devices
high-temperature superconductors
INTERFACE
superconducting detectors
nanostructures
EFFICIENCY
Author
Riccardo Arpaia
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
M. Ejrnaes
Consiglio Nazionale delle Ricerche
L. Parlato
Consiglio Nazionale delle Ricerche
Universita degli Studi di Napoli Federico II
R. Cristiano
Consiglio Nazionale delle Ricerche
Marco Arzeo
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Thilo Bauch
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Shahid Nawaz
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
F. Tafuri
Consiglio Nazionale delle Ricerche
Università degli Studi della Campania Luigi Vanvitelli
G. P. Pepe
Universita degli Studi di Napoli Federico II
Consiglio Nazionale delle Ricerche
Floriana Lombardi
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Superconductor Science and Technology
0953-2048 (ISSN) 1361-6668 (eISSN)
Vol. 27 4Subject Categories (SSIF 2011)
Physical Sciences
DOI
10.1088/0953-2048/27/4/044027