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Surface structure of cleaved (001) USb(2) single crystal RID D-7212-2011

Author:
Chen, S. P.  Hawley, M.  Van Stockum, P. B.  Manoharan, H. C.  Bauer, E. D.  


Journal:
PHILOSOPHICAL MAGAZINE


Issue Date:
2009


Abstract(summary):

We have achieved what we believe to be the first atomic resolution scanning tunneling microscopy (STM) images for a uranium compound USb(2) taken at room temperature. The a, b, and c lattice parameters in the images confirm that the tetragonal USb2 crystals cleave on the (001) basal plane as expected. Our calculations indicate a symmetric cut between Sb planes to be the most favorable cleavage plane and U atoms to be responsible for most of the density of states measured by STM. Since the spacing between Sb atoms and between U atoms is the same, STM topography alone cannot unambiguously identify the surface atom species.


Page:
1881---1891


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