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.
EFFICIENCY
high-temperature superconductors
superconducting detectors
nanostructures
hybrid devices
INTERFACE
Author
Riccardo Arpaia
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
M. Ejrnaes
Consiglo Nazionale Delle Richerche
L. Parlato
University of Naples Federico II
Consiglo Nazionale Delle Richerche
R. Cristiano
Consiglo Nazionale Delle Richerche
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
University of Campania Luigi Vanvitelli
Consiglo Nazionale Delle Richerche
G. P. Pepe
Consiglo Nazionale Delle Richerche
University of Naples Federico II
Floriana Lombardi
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics
Superconductor Science and Technology
0953-2048 (ISSN) 1361-6668 (eISSN)
Vol. 27 4 044027Subject Categories (SSIF 2011)
Physical Sciences
DOI
10.1088/0953-2048/27/4/044027