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

被引：28

作者：

Balicas, L. ^{[1
]}

Analytis, J. G.

Jo, Y. J.

Storr, K.

Zandbergen, H.

Xin, Y.

Hussey, N. E.

Chou, F. C.

Lee, P. A.

机构：

[1] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[2] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[3] Prairie View A&M Univ, Dept Phys, Prairie View, TX 77446 USA

[4] Delft Univ Technol, Dept Nanosci, NL-2628 AL Delft, Netherlands

[5] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan

[6] MIT, Dept Phys, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.97.126401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 Gamma point. An alternative interpretation in terms of the long sought-after epsilon(')(g) pockets is also considered but found to be incompatible with existing specific heat data.

引用

页数：4

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