Shubnikov-de haas effect in the metallic state of Na0.3CoO2

L. Balicas; J. G. Analytis; Y. J. Jo; K. Storr; H. Zandbergen; Y. Xin; N. E. Hussey; F. C. Chou; P. A. Lee

doi:10.1103/PhysRevLett.97.126401

Shubnikov-de haas effect in the metallic state of Na0.3CoO2

L. Balicas, J. G. Analytis, Y. J. Jo, K. Storr, H. Zandbergen, Y. Xin, N. E. Hussey, F. C. Chou, P. A. Lee

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Abstract

Shubnikov-de Haas oscillations for two well-defined frequencies, corresponding, respectively, to areas of 0.8 and 1.36% of the first Brillouin zone, were observed in single crystals of Na0.3CoO2. The existence of Na superstructures in Na0.3CoO2, coupled with this observation, suggests the possibility that the periods are due to the reconstruction of the large Fermi surface around the Γ point. An alternative interpretation in terms of the long sought-after εg′ pockets is also considered but found to be incompatible with existing specific heat data.

Original language	English
Article number	126401
Journal	Physical Review Letters
Volume	97
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.97.126401
State	Published - 2006

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title = "Shubnikov-de haas effect in the metallic state of Na0.3CoO2",

abstract = "Shubnikov-de Haas oscillations for two well-defined frequencies, corresponding, respectively, to areas of 0.8 and 1.36% of the first Brillouin zone, were observed in single crystals of Na0.3CoO2. The existence of Na superstructures in Na0.3CoO2, coupled with this observation, suggests the possibility that the periods are due to the reconstruction of the large Fermi surface around the Γ point. An alternative interpretation in terms of the long sought-after εg′ pockets is also considered but found to be incompatible with existing specific heat data.",

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AU - Balicas, L.

AU - Analytis, J. G.

AU - Jo, Y. J.

AU - Storr, K.

AU - Zandbergen, H.

AU - Xin, Y.

AU - Hussey, N. E.

AU - Chou, F. C.

AU - Lee, P. A.

PY - 2006

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AB - Shubnikov-de Haas oscillations for two well-defined frequencies, corresponding, respectively, to areas of 0.8 and 1.36% of the first Brillouin zone, were observed in single crystals of Na0.3CoO2. The existence of Na superstructures in Na0.3CoO2, coupled with this observation, suggests the possibility that the periods are due to the reconstruction of the large Fermi surface around the Γ point. An alternative interpretation in terms of the long sought-after εg′ pockets is also considered but found to be incompatible with existing specific heat data.

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VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 126401

ER -

Shubnikov-de haas effect in the metallic state of Na0.3CoO2

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