Vortex pinning by natural linear defects in thin films of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">YBa</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:

Klaassen, F.M.; Doornbos, G.; Huijbregtse, J.M.; Geest, R.C.F. van der; Dam, B.; Griessen, R.

doi:10.1103/physrevb.64.184523

Cited by 127 publications

(107 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pure YBCO films contain varying amounts of film penetrating dislocations, 8,24 which are not randomly situated. Instead the distribution is random only at long distances.…”

Section: Pinning By Columnar Defectsmentioning

confidence: 99%

Modeling flux pinning in thin undoped and BaZrO3-doped YBCO films

Paturi

Irjala

Huhtinen

et al. 2009

Journal of Applied Physics

View full text Add to dashboard Cite

A simple model based on distributions of twin boundaries, dislocations, and BaZrO 3 nanorods is presented to describe the J c properties of undoped and BaZrO 3 ͑BZO͒-doped YBa 2 Cu 3 O x thin films. The model accurately describes the shape of J c ͑B , T͒ curves of the films, when the pinning site distributions are taken from distributions of twin spacings and BZO nanorods from transmission electron microscope images. Thus, assuming that the model can be used for prediction of the J c properties, we conclude that for enhancement of undoped films more crystalline defects are needed and for doped films a dopant that would create slightly larger rods would be optimal.

show abstract

“…Pure YBCO films contain varying amounts of film penetrating dislocations, 8,24 which are not randomly situated. Instead the distribution is random only at long distances.…”

Section: Pinning By Columnar Defectsmentioning

confidence: 99%

Modeling flux pinning in thin undoped and BaZrO3-doped YBCO films

Paturi

Irjala

Huhtinen

et al. 2009

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…, 19,20 and the exponential decay at high H. A more complex possibility is that the maximum indicates a matching effect, as has been observed in twin boundaries and columnar defects. 15 In any case, the maximum w c provides a lower estimate 3 .…”

mentioning

confidence: 99%

Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films

Civale¹,

Maiorov²,

Serquis³

et al. 2004

Applied Physics Letters

257

179

View full text Add to dashboard Cite

We present a comparative study of the angular dependent critical current density in YBa 2 Cu 3 O 7 films deposited on IBAD MgO and on single crystal MgO and SrTiO 3 substrates. We identify three angular regimes where pinning is dominated by different types of correlated and uncorrelated defects. We show that those regimes are present in all cases, indicating that the pinning mechanisms are the same, but their extension and characteristics are sample dependent, reflecting the quantitative differences in texture and defect density. In particular, the more defective nature of the films on IBAD turns into an advantage as it results in stronger vortex pinning, demonstrating that the critical current density of the films on single crystals is not an upper limit for the performance of the IBAD coated conductors.

show abstract

“…The potential-energy landscape experienced by a vortex line then has a contribution δε 1 (r) = (∂ε 0 /∂T c ) · δT c (r) due to the variation in the critical temperature about the dislocation line (2). It is dominated by the shear component (T ⊥ ) in the case of optimally doped YBCO, which is shown in fig.…”

Section: Strain/pinning Landscape About Materials Line Defects In Ybcomentioning

confidence: 93%

“…Evidence exists that this is primarily due to edge dislocations that thread the film along the c axis in PLD-YBCO [2]. The critical current of YBCO films in c-axis aligned applied magnetic field can also be enhanced substantially by the introduction of BaZrO 3 (BZO) or of BaSnO 3 (BSO) material that naturally form nanorods along the c axis during the film growth process [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

Comparatively high in-field critical current in type-II superconductors from heterogeneous columnar pins: A molecular dynamics study

Rodriguez

Oswald

2009

Physica C: Superconductivity

View full text Add to dashboard Cite

Theoretical work predicts that the strong dependence of T c on pure shear strain within the a-b plane of optimally doped YBa 2 Cu 3 O 7−δ results in heterogenous columnar pins of vortex lines about dislocation lines and about nano-columns inclusions aligned in parallel to the c axis. The critical current of a rigid vortex lattice driven by the Lorentz force in the presence of such clusters of pin/antipin lines is computed using two-dimensional (2D) collective pinning theory and by numerical simulation of the corresponding 2D vortex dynamics. Both theory and computer calculation find that the antipin component of the heterogenous columnar pins contributes substantially to the net in-field critical current.

show abstract

Vortex pinning by natural linear defects in thin films ofYBa2Cu3O

Cited by 127 publications

References 81 publications

Modeling flux pinning in thin undoped and BaZrO3-doped YBCO films

Modeling flux pinning in thin undoped and BaZrO3-doped YBCO films

Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films

Comparatively high in-field critical current in type-II superconductors from heterogeneous columnar pins: A molecular dynamics study

Contact Info

Product

Resources

About