SURFACE PREPARATION OF <font>CU</font>(110) FOR AMBIENT ENVIRONMENTS

Isted, G. E.; Blanchard, N. P.; Martin, D.

doi:10.1142/9789812773869_0012

Cited by 1 publication

(3 citation statements)

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“…2). A feature at 2.9 eV is observed following exposure to oxygen, similar to previous RAS results of the oxygen exposed surface [22] and air-formed oxide surface [15].…”

Section: The (2 × 1)-o Phasesupporting

confidence: 89%

“…The clean surface generated a RA spectrum that was in agreement with the well known Cu(110) RA profile [11,12]. In previous work [2,[13][14][15] we have prepared a stepped surface morphology from our clean Cu(110) crystal by further cleaning cycles with annealing at ∼1000 K. We find that this procedure results in wellordered terraces terminated by steps of predominantly monoatomic height aligned parallel to the [001] direction (Fig. 1a) and we refer to this surface morphology as the 'stepped Cu(110) surface'.…”

Section: Methodsmentioning

confidence: 62%

“…The change in the RA response at 4 eV is consistent with this region being sensitive to atomic co-ordination of surface atoms and steps. A distinct RAS peak at 2.9 eV is observed from the air-formed cuprous oxide (Cu 2 O) surface [15] and the relatively weak feature at 2.9 eV observed in Fig. 2 indicates the presence of some cuprous oxide on the heated surface -possibly the aggregates observed in the corresponding STM data (Fig.…”

Section: The (2 × 1)-o Phasementioning

confidence: 85%

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Molecular adsorbate induced restructuring of a stepped Cu(110) surface

Blanchard

Martin

Weightman

2005

phys. stat. sol. (c)

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We correlate linear optical reflectance spectra with scanning tunnelling microscopy data to observe the restructuring of a stepped Cu(110) surface by exposure to molecular oxygen. Restructuring is found on the atomic and nanometer length scales. The (2 × 1)-O added row structure is formed on the stepped Cu(110) surface, independent of the occupancy of the lower lying surface state atȲ . We find that heating the (2 × 1)-O surface results in further and considerable restructuring of the surface.

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“…2). A feature at 2.9 eV is observed following exposure to oxygen, similar to previous RAS results of the oxygen exposed surface [22] and air-formed oxide surface [15].…”

Section: The (2 × 1)-o Phasesupporting

confidence: 89%