INVESTIGADORES
HABERKORN Nestor Fabian
artículos
Título:
Upper critical magnetic field and vortex-free state in very thin epitaxial d-MoN films grown by polymer-assisted deposition
Autor/es:
N. HABERKORN; Y. Y. ZHANG; JEEHOON KIM; THOMAS M MCCLESKEY; ANTHONY K BURRELL; R F DEPAULA; T TAJIMA; Q X JIA ; L CIVALE
Revista:
SUPERCONDUCTOR SCIENCE AND TECHNOLOGY
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Londres; Año: 2013 vol. 26 p. 105023 - 105030
ISSN:
0953-2048
Resumen:
We measured the thickness dependence of the superconducting properties in epitaxial d-MoN thin films grown on a-Al2O3 (001) substrates by polymer assisted deposition. Our results indicate that the superconducting properties such as the upper critical field (Hc2 ~ 10 T) and the superconducting critical temperature (Tc = 12.5 K) are thickness independent for films thicker than ~ 36 nm. By measuring the critical current density (Jc) in the vortex-free state, which coincides with the depairing current density (J0), we estimate that films thicker than ~36 nm have coherence length x (0) = 5.8 ± 0.2 nm and penetration depth, l(0) = 420 ± 50 nm. We found that it is possible to enhance the Hc2(0) values to close to 10 T without appreciable reduction in Tc.
