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Topological change of the Fermi surface in ternary iron pnictides with reduced c/a ratio: a de Haas-van Alphen study of CaFe2P2.

Abstract:

We report a de Haas-van Alphen effect study of the Fermi surface of CaFe2P2 using low-temperature torque magnetometry up to 45 T. This system is a close structural analog of the collapsed tetragonal nonmagnetic phase of CaFe2As2. We find the Fermi surface of CaFe2P2 to differ from other related ternary phosphides in that its topology is highly dispersive in the c axis, being three dimensional in character and with identical mass enhancement on both electron and hole pockets ( approximately 1....

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Journal:
Physical review letters
Volume:
103
Issue:
2
Pages:
026404
Publication date:
2009-07-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:08683d43-8106-4b6d-88f1-e46df17d9d3a
Source identifiers:
154753
Local pid:
pubs:154753
Language:
English
Keywords:

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