Copper Interface Induced Relaxation Of Tio2(110)-1x1
PHYSICAL REVIEW B(2000)
摘要
Surface x-ray diffraction has been used to examine the effect of a Cu overlayer on the bulk structural relaxations of TiO2(110) 1 x 1). The Ti atoms at this buried interface are at close to their bulk-terminated positions, representing a derelaxation from the clean surface positions by up to about 0.2 Angstrom. In contrast, O atom vertical and lateral displacements are enhanced, with values of up to 0.4 +/- 0.1 Angstrom and 0.6 +/- 0.1 Angstrom, respectively. This enhanced relaxation is consistent with Cu-O bonding.
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关键词
copper,x ray diffraction
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