SUPERCONDUCTING PROPERTIES OF NIOBIUM FILMS. Hudson, W. R & Jirberg, R. J
abstract   bibtex   
Critical currents as a function of magnetic field, film thickness, and film orienta­ tion have been studied for 14 niobium films ranging in thickness from 16.2 to 1153 nanometers (16.2 to 11530 A). All measurements w e r e made at 4 . 2 K. Measurements of the critical current with respect to the angle between the surface of the film and the magnetic-field direction revealed that a sharp critical current max­ imum occurs when the magnetic field is parallel to the film surface. For films thicker than 88.0 nanometers a broad maximum in the critical current was also observed when the orientation of the magnetic field was nearly perpendicular to the film. Films with a thickness between 25.0 and 60.0 nanometers carried the highest current densities in large magnetic fields. The ratio of the parallel critical magnetic field to the perpendicular critical mag­ netic field was less than 1.69 for films where the thickness was much greater than the coherence length. When the thickness was on the order of the coherence length the ratio was greater than 1.69 at 4 . 2 K.
@article{hudson_superconducting_nodate,
	title = {{SUPERCONDUCTING} {PROPERTIES} {OF} {NIOBIUM} {FILMS}},
	abstract = {Critical currents as a function of magnetic field, film thickness, and film orienta­ tion have been studied for 14 niobium films ranging in thickness from 16.2 to 1153 nanometers (16.2 to 11530 A). All measurements w e r e made at 4 . 2 K. Measurements of the critical current with respect to the angle between the surface of the film and the magnetic-field direction revealed that a sharp critical current max­ imum occurs when the magnetic field is parallel to the film surface. For films thicker than 88.0 nanometers a broad maximum in the critical current was also observed when the orientation of the magnetic field was nearly perpendicular to the film. Films with a thickness between 25.0 and 60.0 nanometers carried the highest current densities in large magnetic fields. The ratio of the parallel critical magnetic field to the perpendicular critical mag­ netic field was less than 1.69 for films where the thickness was much greater than the coherence length. When the thickness was on the order of the coherence length the ratio was greater than 1.69 at 4 . 2 K.},
	language = {en},
	author = {Hudson, Wayne R and Jirberg, Russell J},
	pages = {27},
	file = {Hudson and Jirberg - SUPERCONDUCTING PROPERTIES OF NIOBIUM FILMS.pdf:C\:\\Users\\wimbusst\\OneDrive\\Work\\Zotero Library\\Hudson and Jirberg - SUPERCONDUCTING PROPERTIES OF NIOBIUM FILMS.pdf:application/pdf}
}
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