TITLE

Growth of atomically smooth MgO films on graphene by molecular beam epitaxy

AUTHOR(S)
Wang, W. H.; Han, W.; Pi, K.; McCreary, K. M.; Miao, F.; Bao, W.; Lau, C. N.; Kawakami, R. K.
PUB. DATE
November 2008
SOURCE
Applied Physics Letters;11/3/2008, Vol. 93 Issue 18, p183107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We investigate the growth of MgO films on graphene by molecular beam epitaxy and find that surface diffusion promotes a rough morphology. To reduce the mobility of surface atoms, the graphene surface is dressed by Ti atoms prior to MgO deposition. With as little as 0.5 ML (monolayer) of Ti, the MgO overlayer becomes atomically smooth. Furthermore, no aggregation of MgO is observed at the edges of the graphene sheet. These results are important for the fabrication of nanoscale electronic and spintronic devices.
ACCESSION #
35279208

 

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