Flux pinning mechanisms in ErNi2B2C

S. S. James; C. D. Dewhurst; S. B. Field; D. Mc K. Paul; Y. Paltiel; H. Shtrikman; E. Zeldov; A. M. Campbell

Flux pinning mechanisms in ErNi₂B₂C

S. S. James^*, C. D. Dewhurst, S. B. Field, D. Mc K. Paul, Y. Paltiel, H. Shtrikman, E. Zeldov, A. M. Campbell

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

We present local Hall probe measurements of the superconducting and magnetically ordered material ErNi₂B₂C (T_c≃ 10.5 K, T_N≃6 K). The onset of incommensurate antiferromagnetic order at T_N, within the superconducting state, results in an increase in vortex pinning for B∥c. For B⊥c no increase in pinning is observed at T_N, consistent with the notion of vortex pinning by planar magnetic domain boundaries for B∥c. The development of a weak ferromagnetic component below T_wf≃2.5 K results in a further increase in pinning for both orientations, suggesting that a different mechanism is responsible for this second increase at lower temperatures.

Original language	English
Article number	092512
Pages (from-to)	925121-925124
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	9
State	Published - 1 Sep 2001
Externally published	Yes

Cite this

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title = "Flux pinning mechanisms in ErNi2B2C",

abstract = "We present local Hall probe measurements of the superconducting and magnetically ordered material ErNi2B2C (Tc≃ 10.5 K, TN≃6 K). The onset of incommensurate antiferromagnetic order at TN, within the superconducting state, results in an increase in vortex pinning for B∥c. For B⊥c no increase in pinning is observed at TN, consistent with the notion of vortex pinning by planar magnetic domain boundaries for B∥c. The development of a weak ferromagnetic component below Twf≃2.5 K results in a further increase in pinning for both orientations, suggesting that a different mechanism is responsible for this second increase at lower temperatures.",

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AU - James, S. S.

AU - Dewhurst, C. D.

AU - Field, S. B.

AU - Paul, D. Mc K.

AU - Paltiel, Y.

AU - Shtrikman, H.

AU - Zeldov, E.

AU - Campbell, A. M.

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N2 - We present local Hall probe measurements of the superconducting and magnetically ordered material ErNi2B2C (Tc≃ 10.5 K, TN≃6 K). The onset of incommensurate antiferromagnetic order at TN, within the superconducting state, results in an increase in vortex pinning for B∥c. For B⊥c no increase in pinning is observed at TN, consistent with the notion of vortex pinning by planar magnetic domain boundaries for B∥c. The development of a weak ferromagnetic component below Twf≃2.5 K results in a further increase in pinning for both orientations, suggesting that a different mechanism is responsible for this second increase at lower temperatures.

AB - We present local Hall probe measurements of the superconducting and magnetically ordered material ErNi2B2C (Tc≃ 10.5 K, TN≃6 K). The onset of incommensurate antiferromagnetic order at TN, within the superconducting state, results in an increase in vortex pinning for B∥c. For B⊥c no increase in pinning is observed at TN, consistent with the notion of vortex pinning by planar magnetic domain boundaries for B∥c. The development of a weak ferromagnetic component below Twf≃2.5 K results in a further increase in pinning for both orientations, suggesting that a different mechanism is responsible for this second increase at lower temperatures.

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Flux pinning mechanisms in ErNi₂B₂C

Abstract

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