Document Server@UHasselt >
Research publications >
Please use this identifier to cite or link to this item:
|Title: ||Granular superconductivity in metallic and insulating nanocrystalline boron-doped diamond thin films|
|Authors: ||Willems, B|
|Issue Date: ||2010|
|Publisher: ||IOP PUBLISHING LTD|
|Citation: ||JOURNAL OF PHYSICS D-APPLIED PHYSICS, 43(37)|
|Abstract: ||The low-temperature electrical transport properties of nanocrystalline boron-doped diamond (b-NCD) thin films have been found to be strongly affected by the system's granularity. The important differences between the high and low-temperature behaviour are caused by the inhomogeneous nucleation of superconductivity in the samples. In this paper we will discuss the experimental data obtained on several b-NCD thin films, which were studied by either varying their thickness or boron concentration. It will be shown that the low-temperature properties are influenced by the b-NCD grain boundaries as well as by the appearance of an intrinsic granularity inside these granules. Moreover, superconducting effects have been found to be present even in insulating b-NCD films and are responsible for the negative magnetoresistance regime observed at low temperatures. On the other hand, the low-temperature electrical transport properties of b-NCD films show important similarities with those observed for granular superconductors.|
|Notes: ||[Willems, B. L.; Zhang, G.; Vanacken, J.; Moshchalkov, V. V.] Katholieke Univ Leuven, INPAC Inst Nanoscale Phys & Chem, B-3000 Louvain, Belgium. [Willems, B. L.] Univ Nacl Mayor San Marcos, Fac Ciencias Fis, Lima 14, Peru. [Janssens, S. D.; Haenen, K.; Wagner, P.] Hasselt Univ, Inst Mat Res, BE-3590 Diepenbeek, Belgium. [Haenen, K.; Wagner, P.] IMEC VZW, Div IMOMEC, BE-3590 Diepenbeek, Belgium.
|ISI #: ||000281544100020|
|Type: ||Journal Contribution|
|Validation: ||ecoom, 2011|
|Appears in Collections: ||Research publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.