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  Fermi-surface topology of the iron pnictide LaFe2P2

Blackburn, S., Prévost, B., Bartkowiak, M., Ignatchik, O., Polyakov, A., Förster, T., et al. (2014). Fermi-surface topology of the iron pnictide LaFe2P2. Physical Review B, 89(22): 220505, pp. 1-5. doi:10.1103/PhysRevB.89.220505.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-19E4-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-24C0-2
Genre: Journal Article

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 Creators:
Blackburn, S.1, Author
Prévost, B.1, Author
Bartkowiak, M.1, Author
Ignatchik, O.1, Author
Polyakov, A.1, Author
Förster, T.1, Author
Côté, M.1, Author
Seyfarth, G.1, Author
Capan, C.1, Author
Fisk, Z.1, Author
Goodrich, R. G.1, Author
Sheikin, I.1, Author
Rosner, H.2, Author              
Bianchi, A. D.1, Author
Wosnitza, J.1, Author
Affiliations:
1external, ou_persistent22              
2Helge Rosner, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863450              

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 Abstract: We report on a comprehensive de Haas-van Alphen (dHvA) study of the iron pnictide LaFe2P2. Our extensive density-functional band-structure calculations can well explain the measured angular-dependent dHvA frequencies. As salient feature, we observe only one quasi-two-dimensional Fermi-surface sheet; i.e., a hole-like Fermi-surface cylinder around Gamma, essential for s(+/-) pairing, is missing. In spite of considerable mass enhancements due to many-body effects, LaFe2P2 shows no superconductivity. This is likely caused by the absence of any nesting between electron and hole bands.

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 Dates: 2014-06-18
 Publication Status: Published in print
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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 89 (22) Sequence Number: 220505 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008