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de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs.

Abstract:

We report a de Haas-van Alphen oscillation study of the 111 iron pnictide superconductors LiFeAs with T(c) ≈ 18 K and LiFeP with T(c) ≈ 5 K. We find that for both compounds the Fermi surface topology is in good agreement with density functional band-structure calculations and has almost nested electron and hole bands. The effective masses generally show significant enhancement, up to ~3 for LiFeP and ~5 for LiFeAs. However, one hole Fermi surface in LiFeP shows a very small enhancement, as co...

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Publication status:
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Authors


Coldea, AI More by this author
Guillamón, I More by this author
Vignolles, D More by this author
McCollam, A More by this author
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Journal:
Physical review letters
Volume:
108
Issue:
4
Pages:
047002
Publication date:
2012-01-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:87153dc2-9e62-49aa-8f5c-00727dc24ed7
Source identifiers:
244726
Local pid:
pubs:244726
Language:
English
Keywords:

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