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Flux pinning and artificial patterne...

Morgan, David Joseph.

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Flux pinning and artificial patterned arrays.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Flux pinning and artificial patterned arrays./
Author:	Morgan, David Joseph.
Description:	134 p.
Notes:	Source: Dissertation Abstracts International, Volume: 59-05, Section: B, page: 2260.
Contained By:	Dissertation Abstracts International59-05B.
Subject:	Physics, Condensed Matter. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9832649
ISBN:	0591857545

Flux pinning and artificial patterned arrays.
Morgan, David Joseph.

Flux pinning and artificial patterned arrays. - 134 p.

Source: Dissertation Abstracts International, Volume: 59-05, Section: B, page: 2260.

Thesis (Ph.D.)--Northwestern University, 1998.

The field dependent transport properties of superconducting niobium films, which are modulated by a regular array of non-magnetic and magnetic normal metal inclusions (dots), have been investigated. Strong peaks in the critical current are seen at the fields at which the vortex density in the superconductor is some rational or sub-rational multiple of the normal metal dot density. This commensurate peak effect is enhanced for the magnetic dot arrays when the dots are magnetized in a direction parallel to the applied experimental field. In addition, a large asymmetry in critical currents was found between when the magnetic dipoles are aligned and anti-aligned with the applied magnetic field. The strength of this dipole-vortex interaction is inferred from the commensurate peaks present and missing for different regular lattices.

ISBN: 0591857545Subjects--Topical Terms:

1018743
Physics, Condensed Matter.

Flux pinning and artificial patterned arrays.
LDR:01608nmm 2200253 4500 001 1863810
005 20041216103856.5
008 130614s1998 eng d
020 $a 0591857545
035 $a (UnM)AAI9832649
035 $a AAI9832649
040 $a UnM $c UnM
100 1 $a Morgan, David Joseph. $3 1951323
245 1 0 $a Flux pinning and artificial patterned arrays.
300 $a 134 p.
500 $a Source: Dissertation Abstracts International, Volume: 59-05, Section: B, page: 2260.
502 $a Thesis (Ph.D.)--Northwestern University, 1998.
520 $a The field dependent transport properties of superconducting niobium films, which are modulated by a regular array of non-magnetic and magnetic normal metal inclusions (dots), have been investigated. Strong peaks in the critical current are seen at the fields at which the vortex density in the superconductor is some rational or sub-rational multiple of the normal metal dot density. This commensurate peak effect is enhanced for the magnetic dot arrays when the dots are magnetized in a direction parallel to the applied experimental field. In addition, a large asymmetry in critical currents was found between when the magnetic dipoles are aligned and anti-aligned with the applied magnetic field. The strength of this dipole-vortex interaction is inferred from the commensurate peaks present and missing for different regular lattices.
590 $a School code: 0163.
650 4 $a Physics, Condensed Matter. $3 1018743
650 4 $a Physics, Electricity and Magnetism. $3 1019535
690 $a 0611
690 $a 0607
710 2 0 $a Northwestern University. $3 1018161
773 0 $t Dissertation Abstracts International $g 59-05B.
790 $a 0163
791 $a Ph.D.
792 $a 1998
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9832649