CO adsorption and thermal stability of Pd deposited on a thin FeO(111) film

Meyer, Randall J.; Lahav, Doron; Schalow, Tobias; Laurin, Mathias; Brandt, Björn; Schauermann, Swetlana; Guimond, Sébastien; Klüner, Thorsten; Kuhlenbeck, Helmut; Libuda, Jörg; Shaikhutdinov, Shamil K.; Freund, Hans‐Joachim

doi:10.1016/j.susc.2005.05.011

Cited by 25 publications

(30 citation statements)

References 26 publications

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“…13,[26][27][28][29][30][31][32] Going beyond the existing theoretical results, [32][33][34] we have considered fully relaxed FeO structures, using both pseudomorphic and nonpseudomorphic models, and have explicitly taken into account the effects of the magnetic order in the oxide film.…”

Section: Discussionmentioning

confidence: 99%

“…In these models that have already been used in the past the FeO(111) and Pt(111) lattices are aligned and the substrate has been expanded to match the experimental lattice parameter of FeO(111) (3.1 Å). [32][33][34] In each pseudomorphic model a different register between the oxide film and the metal substrate has been considered: Fe-top, Fefcc, and Fe-hcp. With respect to previous theoretical studies of pseudomorphic models we have considered here for the first time the effect of the magnetic ordering on the properties of the FeO film.…”

Section: Computational Methods and Modelsmentioning

confidence: 99%

“…31 The interaction of the FeO(111) film with metal layers and particles has also been addressed. [33][34][35] It has been pointed out that, due to non-uniform adsorption strength for ad-atoms within regions that present a different register with the substrate, the Moiré pattern provides a template for self-organization of gold atoms. 35 3 An additional reason of interest for this system is the magnetic nature of the oxide.…”

Section: Introductionmentioning

confidence: 99%

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Interplay between structural, magnetic, and electronic properties in aFeO∕Pt(111)ultrathin film

et al. 2007

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We have investigated the magnetic and electronic properties of a FeO film grown on Pt(111).Coupling first principle GGA+U calculations with STM measurements we have identified the principal mechanisms for the structural and electronic non-homogeneous characteristics observed in the Moiré unit cell formed between oxide film and metal support. We show that both free and supported FeO(111) monolayers present an anti-parallel alignment of the magnetic moments and that the modulation of structural and electronic film properties is driven by the local strength of the interaction between the film and the substrate. Namely, due to the lattice mismatch between Pt (111) and the FeO film, the interface properties are different in different regions of the supercell. In particular, for the Fe-top site, where this interaction is weak, the resulting small layer rumpling and large interface separation give origin to a peculiar behavior of the work function, coherent with the most recent experimental findings. In what concerns fine structural and electronic characteristics, in particular the modulation of the work function and the site assignment in the STM images, our results show that a good agreement with the experimental interpretations can be obtained only within more robust, non-pseudomorphic computational models.

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Section: Discussionmentioning

confidence: 99%

Section: Computational Methods and Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interplay between structural, magnetic, and electronic properties in aFeO∕Pt(111)ultrathin film

et al. 2007

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“…The first scanning tunneling microscopy (STM) studies of Pd deposition on FeO(1 1 1) concluded that the Pd films wet the FeO(1 1 1) surface up to temperatures as high as 600 K [20,21]. A very recent follow up study [22] employing CO adsorption, infrared reflection adsorption spectroscopy (IRAS), photoelectron spectroscopy (PES), and STM demonstrated that the behavior of Pd on the FeO(1 1 1) is more complex. It was shown that at high temperatures (>600 K) Pd dewets from the FeO(1 1 1) surface due to diffusion underneath the FeO(1 1 1) film [22].…”

Section: Introductionmentioning

confidence: 99%

“…A very recent follow up study [22] employing CO adsorption, infrared reflection adsorption spectroscopy (IRAS), photoelectron spectroscopy (PES), and STM demonstrated that the behavior of Pd on the FeO(1 1 1) is more complex. It was shown that at high temperatures (>600 K) Pd dewets from the FeO(1 1 1) surface due to diffusion underneath the FeO(1 1 1) film [22].…”

Section: Introductionmentioning

confidence: 99%

Growth of epitaxial thin Pd(111) films on Pt(111) and oxygen-terminated FeO(111) surfaces

2006

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Ultrathin Oxide Films

Freund

Goodman

2008

Handbook of Heterogeneous Catalysis

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The sections in this article are Introduction Magnesium Oxide Mg O (100)/ Mo (100) Mg O (100)/ Ag (100) Mg O (111)/ Mo (110) Nickel Oxide Ni O (100)/ Ni (100), Mo (100) Ni O (111)/ Ni (111) Alumina Alumina/ Ni Al (110) Alumina/ Ni 3 Al (111) Al 2 O 3 (111)/ Ta (110) Al 2 O 3 (111)/ Mo (110) and Cu / Al 2 O 3 (111)/ Mo (110) Silica Si O 2 / Mo (110) Si O 2 / Mo (211) Cu / Si O 2 / Mo (110) Pd / Si O 2 / Mo (110) Au / Si O 2 / Mo (211) and Au / Ti O 2 / Si O 2 / Mo (211) Titania Ti x O y / Mo (100), Mo (110), Pt (111), Ni (110), W (100) Au / Ti O x / Mo (211) Chromia Cr 2 O 3 (111)/ Cr (11O) Vanadia Vanadium Sesquioxide Iron oxides Fe O / Pt (111), Fe 2 O 3 (0001)/ Pt (111), Fe 3 O 4 (001)/ Pt (111) Pd , Au on Iron Oxides Niobia Molybdenum Oxide Ceria Binary Oxides Ni O / Mg O , Ni O / Ca O , Mg O / Ni O , Ca O / Ni O / Mo (100) Conclusions Acknowledgments

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CO adsorption and thermal stability of Pd deposited on a thin FeO(111) film

Cited by 25 publications

References 26 publications

Interplay between structural, magnetic, and electronic properties in aFeO∕Pt(111)ultrathin film

Interplay between structural, magnetic, and electronic properties in aFeO∕Pt(111)ultrathin film

Growth of epitaxial thin Pd(111) films on Pt(111) and oxygen-terminated FeO(111) surfaces

Ultrathin Oxide Films

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