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  Quantum oscillations and magnetic reconstruction in the delafossite PdCrO2

Hicks, C. W., Gibbs, A. S., Zhao, L., Kushwaha, P., Borrmann, H., Mackenzie, A. P., et al. (2015). Quantum oscillations and magnetic reconstruction in the delafossite PdCrO2. Physical Review B, 92(1): 014425, pp. 1-9. doi:10.1103/PhysRevB.92.014425.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-50A8-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-09FC-9
Genre: Journal Article

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 Creators:
Hicks, Clifford W.1, Author              
Gibbs, Alexandra S.2, Author
Zhao, Lishan3, Author              
Kushwaha, Pallavi4, Author              
Borrmann, Horst5, Author              
Mackenzie, Andrew P.6, Author              
Takatsu, Hiroshi2, Author
Yonezawa, Shingo2, Author
Maeno, Yoshiteru2, Author
Yelland, Edward A.2, Author
Affiliations:
1Clifford Hicks, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863466              
2External Organizations, ou_persistent22              
3Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
4Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
5Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              
6Andrew Mackenzie, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863463              

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 Abstract: We report quantum oscillation data on the metallic triangular antiferromagnet PdCrO2. We find that, to very high accuracy, the observed frequencies of PdCrO2 can be reproduced by reconstruction of the (nonmagnetic) PdCoO2 Fermi surface into a reduced zone. The reduced zone corresponds to a magnetic cell containing six chromium sites, giving a root 3 x root 3 in-plane reconstruction, and x2 interplane reconstruction. The interplane ordering represents a reduction in lattice symmetry, possibly to monoclinic, and an associated lattice distortion is expected. In addition, we report a magnetic transition under an applied in-plane field that is probably equivalent to the spin-flop transition reported for CuCrO2, and present data on its field-angle dependence. We also report measurements of the resistivity of PdCrO2 up to 500 K.

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Language(s): eng - English
 Dates: 2015-07-292015-07-29
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 92 (1) Sequence Number: 014425 Start / End Page: 1 - 9 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008