Referenced Items are not available for this document.
Micron-sized Hall sensors made of epitaxial graphene grown on 4H-SiC(0001) have been fabricated and studied at room temperature using transport and noise spectrum measurements. We report detection of 1-μm Dynal bead with the magnetic moment of ~4×108 μB, using a 2-μm epitaxial graphene device. A phase-sensitive AC-DC Hall magnetometry method was used to reliably detect the bead with a relatively large response of VxAC ~ 7 μV. Bead positioning was performed using a nanomanipulator inside of the FIB system. Long-term effect of the small dose of e-beam irradiation (~4 × 1014 e/cm2) on the performance of graphene Hall devices is reported.
Published in:
Magnetics, IEEE Transactions on
(Volume:49
,
Issue:
1
)
Date of Publication: Jan. 2013
- Page(s):
- 97 - 100
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 13189987
- Digital Object Identifier :
- 10.1109/TMAG.2012.2218277
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 21 December 2012
- Issue Date :
- Jan. 2013
- Sponsored by :
- IEEE Magnetics Society
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