Effective vortex pinning in MgB2 thin films

Y. Bugoslavsky; L. Cowey; T. J. Tate; G. K. Perkins; J. Moore; Z. Lockman; A. Berenov; J. L. MacManus-Driscoll; A. D. Caplin; L. F. Cohen; H. Y. Zhai; H. M. Christen; M. P. Paranthaman; D. H. Lowndes; M. H. Jo; M. G. Blamire

doi:10.1088/0953-2048/15/10/305

Effective vortex pinning in MgB₂ thin films

Y. Bugoslavsky, L. Cowey, T. J. Tate, G. K. Perkins, J. Moore, Z. Lockman, A. Berenov, J. L. MacManus-Driscoll, A. D. Caplin, L. F. Cohen, H. Y. Zhai, H. M. Christen, M. P. Paranthaman, D. H. Lowndes, M. H. Jo, M. G. Blamire

Nanomaterials Chemistry Group

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

9 Scopus citations

Abstract

We discuss the pinning properties of MgB₂ thin films grown by pulsed-laser deposition (PLD) and by electron-beam (EB) evaporation. Two mechanisms are identified that contribute most effectively to the pinning of vortices in randomly oriented films. The EB process produces low defected crystallites with a small grain size providing enhanced pinning at grain boundaries without any degradation of T_c. The PLD process produces films with structural disorder on a scale less than the coherence length that further improves pinning, but also depresses T_c.

Original language	English
Pages (from-to)	1392-1397
Number of pages	6
Journal	Superconductor Science and Technology
Volume	15
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/15/10/305
State	Published - Oct 2002

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Bugoslavsky, Y., Cowey, L., Tate, T. J., Perkins, G. K., Moore, J., Lockman, Z., Berenov, A., MacManus-Driscoll, J. L., Caplin, A. D., Cohen, L. F., Zhai, H. Y., Christen, H. M., Paranthaman, M. P., Lowndes, D. H., Jo, M. H., & Blamire, M. G. (2002). Effective vortex pinning in MgB₂ thin films. Superconductor Science and Technology, 15(10), 1392-1397. https://doi.org/10.1088/0953-2048/15/10/305

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title = "Effective vortex pinning in MgB2 thin films",

abstract = "We discuss the pinning properties of MgB2 thin films grown by pulsed-laser deposition (PLD) and by electron-beam (EB) evaporation. Two mechanisms are identified that contribute most effectively to the pinning of vortices in randomly oriented films. The EB process produces low defected crystallites with a small grain size providing enhanced pinning at grain boundaries without any degradation of Tc. The PLD process produces films with structural disorder on a scale less than the coherence length that further improves pinning, but also depresses Tc.",

author = "Y. Bugoslavsky and L. Cowey and Tate, {T. J.} and Perkins, {G. K.} and J. Moore and Z. Lockman and A. Berenov and MacManus-Driscoll, {J. L.} and Caplin, {A. D.} and Cohen, {L. F.} and Zhai, {H. Y.} and Christen, {H. M.} and Paranthaman, {M. P.} and Lowndes, {D. H.} and Jo, {M. H.} and Blamire, {M. G.}",

year = "2002",

month = oct,

doi = "10.1088/0953-2048/15/10/305",

language = "English",

volume = "15",

pages = "1392--1397",

journal = "Superconductor Science and Technology",

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Bugoslavsky, Y, Cowey, L, Tate, TJ, Perkins, GK, Moore, J, Lockman, Z, Berenov, A, MacManus-Driscoll, JL, Caplin, AD, Cohen, LF, Zhai, HY, Christen, HM, Paranthaman, MP, Lowndes, DH, Jo, MH & Blamire, MG 2002, 'Effective vortex pinning in MgB₂ thin films', Superconductor Science and Technology, vol. 15, no. 10, pp. 1392-1397. https://doi.org/10.1088/0953-2048/15/10/305

TY - JOUR

T1 - Effective vortex pinning in MgB2 thin films

AU - Bugoslavsky, Y.

AU - Cowey, L.

AU - Tate, T. J.

AU - Perkins, G. K.

AU - Moore, J.

AU - Lockman, Z.

AU - Berenov, A.

AU - MacManus-Driscoll, J. L.

AU - Caplin, A. D.

AU - Cohen, L. F.

AU - Zhai, H. Y.

AU - Christen, H. M.

AU - Paranthaman, M. P.

AU - Lowndes, D. H.

AU - Jo, M. H.

AU - Blamire, M. G.

PY - 2002/10

Y1 - 2002/10

N2 - We discuss the pinning properties of MgB2 thin films grown by pulsed-laser deposition (PLD) and by electron-beam (EB) evaporation. Two mechanisms are identified that contribute most effectively to the pinning of vortices in randomly oriented films. The EB process produces low defected crystallites with a small grain size providing enhanced pinning at grain boundaries without any degradation of Tc. The PLD process produces films with structural disorder on a scale less than the coherence length that further improves pinning, but also depresses Tc.

AB - We discuss the pinning properties of MgB2 thin films grown by pulsed-laser deposition (PLD) and by electron-beam (EB) evaporation. Two mechanisms are identified that contribute most effectively to the pinning of vortices in randomly oriented films. The EB process produces low defected crystallites with a small grain size providing enhanced pinning at grain boundaries without any degradation of Tc. The PLD process produces films with structural disorder on a scale less than the coherence length that further improves pinning, but also depresses Tc.

UR - http://www.scopus.com/inward/record.url?scp=0036772431&partnerID=8YFLogxK

U2 - 10.1088/0953-2048/15/10/305

DO - 10.1088/0953-2048/15/10/305

M3 - Article

AN - SCOPUS:0036772431

SN - 0953-2048

VL - 15

SP - 1392

EP - 1397

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 10

ER -

Effective vortex pinning in MgB₂ thin films

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