Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/9892
Title: Negative magnetoresistance in boron-doped nanocrystalline diamond films
Authors: Willems, B. L.
Zhang, G.
Vanacken, J.
Moshchalkov, V. V.
Wagner, P.
JANSSENS, Stoffel 
WILLIAMS, Oliver 
HAENEN, Ken 
WAGNER, Patrick 
Issue Date: 2009
Publisher: AMER INST PHYSICS
Source: JOURNAL OF APPLIED PHYSICS, 106(3)
Abstract: We report on the observation of a negative magnetoresistance (NMR) regime in boron-doped nanocrystalline diamond films at low temperatures. A comparative analysis of our experimental results and those reported for systems composed of superconducting granules embedded in an insulating matrix (also referred as granular films) suggest the presence of superconducting regions inside the insulating films as causing the NMR. By considering the latter scenario, the experimental observations are explained by modeling the systems as consisting of a distribution of superconducting granules whose global properties are tuned by the intergrain distance.
Notes: [Willems, B. L.; Zhang, G.; Vanacken, J.; Moshchalkov, V. V.] Katholieke Univ Leuven, INPAC, B-3001 Louvain, Belgium. [Janssens, S. D.; Williams, O. A.; Haenen, K.; Wagner, P.] Hasselt Univ, Inst Mat Res IMO, BE-3590 Diepenbeek, Belgium. [Williams, O. A.; Haenen, K.; Wagner, P.] IMEC VZW, Div IMOMEC, BE-3590 Diepenbeek, Belgium.
Keywords: boron; diamond; insulating thin films; magnetoresistance
Document URI: http://hdl.handle.net/1942/9892
ISSN: 0021-8979
e-ISSN: 1089-7550
DOI: 10.1063/1.3195045
ISI #: 000269060700048
Category: A1
Type: Journal Contribution
Validations: ecoom 2010
Appears in Collections:Research publications

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