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  Electronic and magnetic properties of BaFeO3 on the Pt(111) surface in a quasicrystalline approximant structure

Adeagbo, W. A., Maznichenko, I. V., Ben Hamed, H., Mertig, I., Ernst, A., & Hergert, W. (2020). Electronic and magnetic properties of BaFeO3 on the Pt(111) surface in a quasicrystalline approximant structure. Physica Status Solidi B, 257(7): 1900649. doi:10.1002/pssb.201900649.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-891F-C Version Permalink: https://hdl.handle.net/21.11116/0000-0009-4F5E-7
Genre: Journal Article

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2020
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https://doi.org/10.1002/pssb.201900649 (Publisher version)
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 Creators:
Adeagbo, Waheed Ade1, Author
Maznichenko, Igor V.1, Author
Ben Hamed, Hichem1, Author
Mertig, Ingrid1, Author
Ernst, Arthur2, Author           
Hergert, Wolfram1, Author
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1External Organizations, ou_persistent22              
2Max Planck Institute of Microstructure Physics, Max Planck Society, ou_2415691              

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 Abstract: Perovskite‐like ABO3 oxides A = (Ca, Sr, Ba) and B = (Ti, Mn, Fe, Co, Ni) show a large variety of structures and physical properties. Among them is BaTiO3 (BTO), one of the most investigated and used perovskites. In a BTO film on Pt(111), the first oxide quasicrystal was discovered. Herein, by means of first‐principle methods, the cubic and hexagonal phases of bulk BaFeO3 (BFO) are investigated. Both phases show ferromagnetic order. Monolayers and double layers of BFO are studied on a Pt(111) surface. The double‐layer configuration of the cubic and hexagonal phases is structurally inequivalent but both double‐layer films show antiferromagnetic order. In analogy to the BTO quasicrystal approximant structure on Pt(111), a corresponding BFO structure is investigated. The Fe atoms are surrounded by three oxygen atoms and the resulting FeO3 units are separated by barium atoms with the total stoichiometry Ba5Fe4O12.

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 Dates: 2020-03-03
 Publication Status: Issued
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 Identifiers: BibTex Citekey: P13942
DOI: 10.1002/pssb.201900649
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Title: Physica Status Solidi B
  Abbreviation : Phys. Status Solidi B
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 257 (7) Sequence Number: 1900649 Start / End Page: - Identifier: ISSN: 0370-1972
CoNE: https://pure.mpg.de/cone/journals/resource/958480240330