Interstitial flux phases in a superconducting niobium film with a square lattice of artificial pinning centers

被引：122

作者：

Metlushko, V

Welp, U

Crabtree, GW

Osgood, R

Bader, SD

DeLong, LE

Zhang, Z

Brueck, SRJ

Ilic, B

Chung, K

Hesketh, PJ

机构：

[1] Argonne Natl Lab, MSD, Argonne, IL 60439 USA

[2] Univ Kentucky, Lexington, KY 40506 USA

[3] Univ New Mexico, Albuquerque, NM 87131 USA

[4] Univ Illinois, EECS, Chicago, IL 60607 USA

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.60.R12585

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate that a square lattice of artificial pinning centers in a superconducting Nb film induces the formation of highly ordered interstitial vortex phases with different symmetries for external magnetic fields as high as the eighth matching field. These "supermatching'' phases are identified by distinct differences in the behavior of their critical currents, magnetoresistivity, and magnetization. Our results are consistent with predictions of supermatching lattice symmetries by recent numerical simulations. [S0163-1829(99)51142-9].

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收藏

页码：R12585 / R12588

页数：4

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