Reconstruction of the 3-D Atomic Structure of CoSi2 (111) by Photoelectron Holography
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ABSTRACTWe report the use of photoelectron holography for the study of the atomic geometry of the (111) surface of single crystal CoSi2. We employ as a reference wave the Co 3p core electron emitted with a kinetic energy of 695 eV by absorption of synchrotron radiation. Remarkably sharp images of the nearest Si neighbors of the Co emitter were found using a computer reconstruction algorithm which compensates for the anisotropies of both reference and object waves. Comparison with other reconstruction schemes such as the Helmholtz-Kirchoff (HK) algorithm and the scattered-wave included Fourier transform (SWIFT), demonstrates the necessity of compensating for the reference-wave anisotropy.
1992 ◽
Vol 16
(2)
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pp. 231-234
1998 ◽
pp. 431-436
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2010 ◽
Vol 22
(38)
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pp. 385301
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