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

INTERFACE

hybrid devices

superconducting detectors

nanostructures

high-temperature superconductors

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

Università degli Studi della Campania Luigi Vanvitelli

Consiglio Nazionale delle Ricerche

G. P. Pepe

Consiglio Nazionale delle Ricerche

Universita degli Studi di Napoli Federico II

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Superconductor Science and Technology

0953-2048 (ISSN) 1361-6668 (eISSN)

Vol. 27

Subject Categories

Physical Sciences

DOI

10.1088/0953-2048/27/4/044027