Journal article

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 1.5). This suggests that when the bonding between pnictogen layers becomes important nesting conditions are not fulfilled.

Publication status:: Published

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APA Style

Coldea, A., Andrew, C., Analytis, J., McDonald, R., Bangura, A., Chu, J., Fisher, I., & Carrington, A. (2009). Topological change of the Fermi surface in ternary iron pnictides with reduced c/a ratio: a de Haas-van Alphen study of CaFe2P2. Physical Review Letters, 103(2), 026404.

MLA Style

Coldea, A, et al. “Topological Change of the Fermi Surface in Ternary Iron Pnictides with Reduced c/a Ratio: a De Haas-Van Alphen Study of CaFe2P2.” Physical Review Letters, vol. 103, no. 2, 2009, p. 026404.

Chicago Style

Coldea, A, C Andrew, J Analytis, et al. 2009. “Topological Change of the Fermi Surface in Ternary Iron Pnictides with Reduced c/a Ratio: a De Haas-Van Alphen Study of CaFe2P2.” Physical Review Letters 103 (2): 026404.
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Publisher copy:: 10.1103/physrevlett.103.026404

Authors

+ Coldea, A More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Condensed Matter Physics
Role:: Author

+ Andrew, C More by this author

Role:: Author

+ Analytis, J More by this author

Role:: Author

+ McDonald, R More by this author

Role:: Author

+ Bangura, A More by this author

Role:: Author

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Journal:: Physical Review Letters More from this journal
Volume:: 103
Issue:: 2
Pages:: 026404
Publication date:: 2009-07-01
DOI:: 10.1103/physrevlett.103.026404
EISSN:: 1079-7114
ISSN:: 0031-9007

Language:: English
Keywords:: cond-mat.supr-con

cond-mat.str-el
Pubs id:: pubs:154753
UUID:: uuid:08683d43-8106-4b6d-88f1-e46df17d9d3a
Local pid:: pubs:154753
Source identifiers:: 154753
Deposit date:: 2012-12-19
ARK identifier:: ark:/29072/ora_08683d4381064b6d88f1e46df17d9d3a

Terms of use

Copyright date:: 2009

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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