Fermi-liquid behavior in an underdoped high-Tc superconductor

被引：40

作者：

Sebastian, Suchitra E. ^{[1
]}

Harrison, N. ^{[2
]}

Altarawneh, M. M. ^{[2
]}

Liang, Ruixing ^{[3
,4
]}

Bonn, D. A. ^{[3
,4
]}

Hardy, W. N. ^{[3
,4
]}

Lonzarich, G. G. ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 OHE, England

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

[3] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada

[4] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 14期

关键词：

INSULATOR; SURFACE; PHYSICS;

D O I：

10.1103/PhysRevB.81.140505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use magnetic quantum oscillations in the underdoped high T-c superconductor YBa2Cu3O6+x (x approximate to 0.56) measured over a broad range of temperatures 100 mK < T < 18 K to extract the form of the distribution function describing the low-lying quasiparticle excitations in high magnetic fields. Despite the proximity of YBa2Cu3O6.56 to a Mott insulating state, various broken symmetry ground states and/or states with different quasiparticle statistics, we find that our experimental results can be understood in terms of quasiparticle excitations obeying Fermi-Dirac statistics as in the Landau-Fermi liquid theory.

引用

页数：4

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