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  Molecular beam epitaxy preparation and in situ characterization of FeTe thin films

Pereira, V. M., Wu, C. N., Liu, C. E., Liao, S.-C., Chang, C.-F., Kuo, C.-Y., et al. (2020). Molecular beam epitaxy preparation and in situ characterization of FeTe thin films. Physical Review Materials, 4(2): 023405, pp. 1-6. doi:10.1103/PhysRevMaterials.4.023405.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0005-E947-5 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0008-8646-2
Genre: Zeitschriftenartikel

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 Urheber:
Pereira, V. M.1, Autor           
Wu, C. N.1, Autor           
Liu, C. E.1, Autor           
Liao, S.-C.1, Autor           
Chang, C.-F.2, Autor           
Kuo, C.-Y.1, Autor           
Koz, C.3, Autor           
Schwarz, U.4, Autor           
Lin, H.-J.5, Autor
Chen, C. T.5, Autor
Tjeng, L. H.6, Autor           
Altendorf, S. G.7, Autor           
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2Chun-Fu Chang, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863447              
3Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
4Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863423              
5External Organizations, ou_persistent22              
6Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              
7Simone Altendorf, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863458              

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 Zusammenfassung: We have synthesized Fe1+y Te thin films by means of molecular beam epitaxy (MBE) under Te-limited growth conditions. We found that epitaxial layer-by-layer growth is possible for a wide range of excess Fe values, wider than expected from what is known from studies on the bulk material. Using x-ray magnetic circular dichroism spectroscopy at the Fe L-2(,3) and Te M-4(,5) edges, we observed that films with high excess Fe contain ferromagnetic clusters while films with lower excess Fe remain nonmagnetic. Moreover, x-ray absorption spectroscopy showed that it is possible to obtain films with very similar electronic structure as that of a high quality bulk single crystal Fe-1.(14) Te. Our results suggest that MBE with Te-limited growth may provide an opportunity to synthesize FeTe films with smaller amounts of excess Fe as to come closer to a possible superconducting phase.

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Sprache(n): eng - English
 Datum: 2020-02-282020-02-28
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000517314500004
DOI: 10.1103/PhysRevMaterials.4.023405
 Art des Abschluß: -

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Titel: Physical Review Materials
  Kurztitel : Phys. Rev. Mat.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: College Park, MD : American Physical Society
Seiten: - Band / Heft: 4 (2) Artikelnummer: 023405 Start- / Endseite: 1 - 6 Identifikator: ISSN: 2475-9953
CoNE: https://pure.mpg.de/cone/journals/resource/2475-9953