Fermi Surface of Superconducting LaFePO Determined from Quantum Oscillations

被引：175

作者：

Coldea, A. I. ^{[1
]}

Fletcher, J. D. ^{[1
]}

Carrington, A. ^{[1
]}

Analytis, J. G. ^{[2
,3
]}

Bangura, A. F. ^{[1
]}

Chu, J. -H. ^{[2
,3
]}

Erickson, A. S. ^{[2
,3
]}

Fisher, I. R. ^{[2
,3
]}

Hussey, N. E. ^{[1
]}

McDonald, R. D. ^{[4
]}

机构：

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

[2] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA

[3] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[4] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 21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.101.216402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report extensive measurements of quantum oscillations in the normal state of the Fe-based superconductor LaFePO, (T(c)similar to 6 K) using low temperature torque magnetometry and transport in high static magnetic fields (45 T). We find that the Fermi surface is in broad agreement with the band-structure calculations with the quasiparticle mass enhanced by a factor similar to 2. The quasi-two-dimensional Fermi surface consists of nearly nested electron and hole pockets, suggesting proximity to a spin or charge density wave instability.

引用

页数：4

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