Superconducting levitation surfaces

摘要

Apparatus, consisting of a substrate and planar tapes which have respective mutually-opposing first and second faces. The tapes have edges connecting the faces, and each tape has a superconducting material on at least the first face thereof. The tapes may be arranged on the substrate so as to define at least a first set of at least one of the planar tapes overlying a surface of the substrate so that the edges of adjacent sections of the tapes in the first set butt together along a first direction over the surface. The tapes may also be arranged so that a second set of at least another one of the planar tapes overly the first set so that the edges of adjacent sections of the tapes in the second set butt together along a second direction that is different from the first direction.

主权项

1. Apparatus, comprising:
a permanent magnet, generating a magnetic field; a substrate positioned within the magnetic field; planar tapes, which overlie a surface of the substrate and which have respective mutually-opposing first and second faces and edges connecting the faces, each tape comprising, on at least the first face thereof, a superconducting material of a type selected so as to pin a flux of the magnetic field through the substrate, and wherein the tapes are arranged on the substrate so as to define at least: a first set of at least one of the planar tapes overlying the surface of the substrate so that the edges of adjacent sections of the tapes in the first set butt together along a first direction over the surface; and a second set of at least another one of the planar tapes overlying the first set so that the edges of adjacent sections of the tapes in the second set butt together along a second direction that is different from the first direction.