Magnetic-Field-Enhanced Incommensurate Magnetic Order in the Underdoped High-Temperature Superconductor YBa2Cu3O6.45

被引：96

作者：

Haug, D. ^{[1
]}

Hinkov, V. ^{[1
]}

Suchaneck, A. ^{[1
]}

Inosov, D. S. ^{[1
]}

Christensen, N. B. ^{[2
,3
,4
,5
]}

Niedermayer, Ch. ^{[2
,3
]}

Bourges, P. ^{[6
]}

Sidis, Y. ^{[6
]}

Park, J. T. ^{[1
]}

Ivanov, A. ^{[7
]}

Lin, C. T. ^{[1
]}

Mesot, J. ^{[2
,3
,8
]}

Keimer, B. ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] ETH, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[4] Tech Univ Denmark, Riso DTU, Mat Res Div, DK-4000 Roskilde, Denmark

[5] Univ Copenhagen, Niels Bohr Inst, Nanosci Ctr, DK-2100 Copenhagen, Denmark

[6] CEA Saclay, Lab Leon Brillouin, CNRS, F-91191 Gif Sur Yvette, France

[7] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[8] Ecole Polytech Fed Lausanne, Inst Phys Mat Complexe, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 01期

关键词：

FERMI-SURFACE; QUANTUM OSCILLATIONS; NEUTRON-SCATTERING; STATE; POCKETS; PHASE;

D O I：

10.1103/PhysRevLett.103.017001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a neutron-scattering study of the static and dynamic spin correlations in the underdoped high-temperature superconductor YBa2Cu3O6.45 in magnetic fields up to 15 T. The field strongly enhances static incommensurate magnetic order at low temperatures and induces a spectral-weight shift in the magnetic-excitation spectrum. A reconstruction of the Fermi surface driven by the field-enhanced magnetic superstructure may thus be responsible for the unusual Fermi surface topology revealed by recent quantum-oscillation experiments.

引用

页数：4

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