Vortex pinning by magnetic order in ErNi2B2C

被引：11

作者：

Dewhurst, CD

James, SS

Doyle, JA

Paltiel, Y

Shtrikman, H

Zeldov, E

Paul, DM

机构：

[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[2] Univ Cambridge, Interdisciplinary Res Ctr Superconduct, Cambridge CB3 0HE, England

[3] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.63.060501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have used a miniature linear Hall probe array to make local magnetization measurements of the magnetic superconductor ErNi2B2C (Tc similar or equal to 10.8 K). We show the sharp onset of significant pinning effects in ErNi2B2C is coincident with the onset of an a-axis incommensurate ordering of the Er moments at T-a(m) similar or equal to 6 K, below T-c. The data presented provide further evidence that certain components of the magnetic order in (R)Ni2B2C materials interact with the vortex lattice and have a profound influence on the nonequilibrium (vortex pinning) properties of the superconducting state.

引用

收藏

页码：605011 / 605014

页数：4

相关论文

共 20 条

[1] Theoretical model for the superconducting and magnetically ordered borocarbides [J].

Amici, A ;

Thalmeier, P ;

Fulde, P .

PHYSICAL REVIEW LETTERS, 2000, 84 (08) :1800-1803

[2] SURFACE BARRIER IN TYPE-2 SUPERCONDUCTORS [J].

BEAN, CP ;

LIVINGSTON, JD .

PHYSICAL REVIEW LETTERS, 1964, 12 (01) :14-&

[3] Geometric barrier and current string in type-II superconductors obtained from continuum electrodynamics [J].

Brandt, EH .

PHYSICAL REVIEW B, 1999, 59 (05) :3369-3372

[4] New magnetic superconductors: A toy box for solid-state physicists [J].

Canfield, PC ;

Gammel, PL ;

Bishop, DJ .

PHYSICS TODAY, 1998, 51 (10) :40-46

[5] Magnetoelastic tetragonal-to-orthorhombic distortion in ErNi2B2C [J].

Detlefs, C ;

Islam, AHMZ ;

Gu, T ;

Goldman, AI ;

Stassis, C ;

Canfield, PC ;

Hill, JP ;

Vogt, T .

PHYSICAL REVIEW B, 1997, 56 (13) :7843-7846

[6] Interaction between magnetic order and the vortex lattice in HoNi2B2C [J].

Dewhurst, CD ;

Doyle, RA ;

Zeldov, E ;

Paul, DM .

PHYSICAL REVIEW LETTERS, 1999, 82 (04) :827-830

[7] Observation of a field-driven structural phase transition in the flux line lattice in ErNi2B2C [J].

Eskildsen, MR ;

Gammel, PL ;

Barber, BP ;

Yaron, U ;

Ramirez, AP ;

Huse, DA ;

Bishop, DJ ;

Bolle, C ;

Lieber, CM ;

Oxx, S ;

Sridhar, S ;

Andersen, NH ;

Mortensen, K ;

Canfield, PC .

PHYSICAL REVIEW LETTERS, 1997, 78 (10) :1968-1971

[8] Effects of magnetic order on the superconducting length scales and critical fields in single crystal ErNi2B2C [J].

Gammel, PL ;

Barber, BP ;

Ramirez, AP ;

Varma, CM ;

Bishop, DJ ;

Canfield, PC ;

Kogan, VG ;

Eskildsen, MR ;

Andersen, NH ;

Mortensen, K ;

Harada, K .

PHYSICAL REVIEW LETTERS, 1999, 82 (08) :1756-1759

[9] Enhanced critical currents of superconducting ErNi2B2C in the ferromagnetically ordered state [J].

Gammel, PL ;

Barber, B ;

Lopez, D ;

Ramirez, AP ;

Bishop, DJ ;

Bud'ko, SL ;

Canfield, PC .

PHYSICAL REVIEW LETTERS, 2000, 84 (11) :2497-2500

[10] MAGNETIC PAIR-BREAKING IN HONI2B2C [J].

GOLDMAN, AI ;

STASSIS, C ;

CANFIELD, PC ;

ZARESTKY, J ;

DERVENAGAS, P ;

CHO, BK ;

JOHNSTON, DC .

PHYSICAL REVIEW B, 1994, 50 (13) :9668-9671