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Li, Lingchuan

doi:10.1023/a:1011632703263

Cited by 11 publications

(4 citation statements)

References 11 publications

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“…Initially, we electrodeposited Co from a cobalt sulfate solution (CoSO 4 ·5H 2 O 1.3 M, H 3 BO 3 0.7 M, pH 2.0) at room temperature [28]. Electrodeposition appears to be the ideal method of backfilling the pores, in that the Nb acts as an electrode while the insulating AAO template remains uncoated, so that the film is deposited only at the pinning sites as desired, rather than as a continuous sheet.…”

Section: Fabrication Of Magnetic Pinsmentioning

confidence: 99%

Depairing critical current achieved in superconducting thin films with through-thickness arrays of artificial pinning centers

Dinner

Robinson

Wimbush

et al. 2011

Supercond. Sci. Technol.

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Large area arrays of through-thickness nanoscale pores have been milled into superconducting Nb thin films via a process utilizing anodized aluminum oxide thin film templates. These pores act as artificial flux pinning centers, increasing the superconducting critical current, Jc, of the Nb films. By optimizing the process conditions including anodization time, pore size and milling time, Jc values approaching and in some cases matching the Ginzburg-Landau depairing current of 30 MA/cm 2 at 5 K have been achieved -a Jc enhancement over as-deposited films of more than 50 times. In the field dependence of Jc, a matching field corresponding to the areal pore density has also been clearly observed. The effect of back-filling the pores with magnetic material has then been investigated. While back-filling with Co has been successfully achieved, the effect of the magnetic material on Jc has been found to be largely detrimental compared to voids, although a distinct influence of the magnetic material in producing a hysteretic Jc versus applied field behavior has been observed. This behavior has been tested for compatibility with currently proposed models of magnetic pinning and found to be most closely explained by a model describing the magnetic attraction between the flux vortices and the magnetic inclusions.

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Section: Fabrication Of Magnetic Pinsmentioning

confidence: 99%

Depairing critical current achieved in superconducting thin films with through-thickness arrays of artificial pinning centers

Dinner

Robinson

Wimbush

et al. 2011

Supercond. Sci. Technol.

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“…The anodic aluminum oxide (AAO) template plays an important role in the synthesis of one-dimensional nanomaterials due to their particular characters such as controllable pore diameter and periodicity, extremely narrow distribution of pore size and the pore has ideal cylindrical shape [2,3]. This offers a promising route to synthesize a large-area, ordered nanostructure with high aspect ratio, which is difficult to form by the conventional lithographic process.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and magnetic properties of metallic nanowires via AAO templates

Thongmee

Pang

Ding

et al. 2009

Journal of Magnetism and Magnetic Materials

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“…Recently, there is an increasing interest in the use of electrodeposition technique for preparing various nanostructured materials. For instance, electrodeposition methods have been used for producing metal/semiconductor nanoparticles and nanowires [31][32][33] in pores of porous alumina membranes formed from aluminum sheets by anodizing in certain dilute solutions of acids, such as oxalic and sulfuric acids. Extensive studies have also been carried out using electrodeposition of catalytic nanoparticles, including Co, Ni, and Fe, in alumina membrane pores to grow CNTs.…”

Section: Cnt Micropatterns From Template-free Electrodeposited Catalymentioning

confidence: 99%

Carbon-nanotube electron emitters for display applications

Patil

Dai

et al. 2005

J. Soc. Inf. Display

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Abstract— The optoelectronic, mechanical, and thermal properties of carbon nanotubes have made them very attractive for a wide range of potential applications. However, many applications require the growth of aligned/micropatterned carbon nanotubes with or without a modified nanotube surface. We have developed several simple pyrolytic methods for large‐scale production of aligned carbon‐nanotube arrays perpendicular to the substrate surface. We have also used photolithographic and soft‐lithographic techniques to pattern our aligned carbon nanotubes with submicron resolution. These aligned carbon‐nanotube arrays can be transferred onto various substrates of particular interest (e.g., on conducting substrates as electron emitters for flat‐panel displays) in either a patterned or non‐patterned fashion. The well‐aligned structure further allows us to prepare aligned coaxial nanowires of carbon nanotubes sheathed with polymers and to modify the surface of individual carbon nanotubes by plasma treatment. These aligned/micropatterned carbon nanotubes with and without surface modification possess desirable properties for electron emission applications.

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Untitled

Cited by 11 publications

References 11 publications

Depairing critical current achieved in superconducting thin films with through-thickness arrays of artificial pinning centers

Depairing critical current achieved in superconducting thin films with through-thickness arrays of artificial pinning centers

Fabrication and magnetic properties of metallic nanowires via AAO templates

Carbon-nanotube electron emitters for display applications

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