Angle-resolved photoemission of the c(2 × 2) and c(3 × 1) oxygen overlayers on Fe(110)

Sakisaka, Y.; Komeda, Tadahiro; Miyano, T.; Onchi, M.; Masuda, S.; Harada, Yoshiya; Yagi, Kazuichi; Kato, Hidemi

doi:10.1016/0039-6028(85)90709-5

Cited by 40 publications

(9 citation statements)

References 10 publications

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“…Oxygen adsorption on iron surfaces have been studied experimentally by many authors using a variety of experimental techniques [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Investigations of the initial stages of the interaction of oxygen with an Fe(100) surface have shown [24,25] that oxygen atoms adsorb in the fourfold coordinated hollow sites on Fe(100).…”

Section: Introductionmentioning

confidence: 99%

Oxygen adsorption on Fe(110) surface revisited

Ossowski

Kiejna

2015

Surface Science

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Section: Introductionmentioning

confidence: 99%

Oxygen adsorption on Fe(110) surface revisited

Ossowski

Kiejna

2015

Surface Science

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“…2, we display a sketch of structural models for the two superstructures, which have been investigated experimentally [23][24][25][26][27][28][29][30][31][32][33][34][35] and theoretically [36][37][38][39][40][41][42] before. For both superstructures, the adsorbate atoms occupy fourfold hollow sites of the Fe substrate.…”

Section: Introductionmentioning

confidence: 99%

Superstructures of oxygen and sulphur on a Fe(110) surface via fast atom diffraction

et al. 2009

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Fast helium atoms and hydrogen molecules with energies from 400 eV up to several keV are grazingly scattered from a Fe͑110͒ surface covered by oxygen and sulphur atoms forming c͑2 ϫ 2͒ and c͑1 ϫ 3͒ superstructures, respectively. For scattering along low-index azimuthal directions we observe defined diffraction patterns in the angular distributions for scattered projectiles. From the evaluation of those diffraction patterns we derive the widths of low-indexed axial channels, the corrugation of the interaction potential across these channels, and the normal positions of adsorbed atoms above the Fe lattice. Our analysis is based on semiclassical models using hard-wall approximation as well as individual potentials for the interaction of projectiles with the surface. By comparing the results of different models, we discuss the robustness of the information on the geometrical structure of the surfaces.

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“…Experimental investigations [7][8][9][10][11][12][13][14][15][16][17] as well as our previous theoretical work on the adsorption of atomic oxygen on the ͑110͒ and ͑100͒ surfaces of Fe ͑Refs. 18 and 19͒ revealed interesting differences in the reactivities of these surfaces.…”

Section: Introductionmentioning

confidence: 99%

Dissociative adsorption ofO2molecules on O-precovered Fe(110) and Fe(100): Density-functional calculations

2008

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The dissociative adsorption of O 2 molecules on clean and oxygen-precovered Fe͑110͒ and Fe͑100͒ surfaces has been studied from first principles. For the relatively open Fe͑100͒ surface, we find that along the most favorable reaction channel, O 2 dissociation remains a nonactivated process up to almost full monolayer coverage. The differential heat of adsorption decreases only slowly with increasing oxygen precoverage. The potential energy profile for dissociation shows a dip, which is indicative of the formation of a very short-lived nonmagnetic peroxo precursor. On the close packed Fe͑110͒ surface, the differential heat of adsorption begins to decrease already at a modest precoverage. For dissociation on a surface precovered with about 0.44 monolayer of oxygen, a low barrier begins to appear in the entrance channel. In the transition state, the incoming molecule is in a superoxo state with a magnetic moment of 1 B . Our results are discussed in relation to the electronic and magnetic properties of the partially precovered surfaces and to the available experimental results.

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Angle-resolved photoemission of the c(2 × 2) and c(3 × 1) oxygen overlayers on Fe(110)

Cited by 40 publications

References 10 publications

Oxygen adsorption on Fe(110) surface revisited

Oxygen adsorption on Fe(110) surface revisited

Superstructures of oxygen and sulphur on a Fe(110) surface via fast atom diffraction

Dissociative adsorption ofO2molecules on O-precovered Fe(110) and Fe(100): Density-functional calculations

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