Unusual interplay between copper-spin and vortex dynamics in slightly overdoped La1.83Sr0.17CuO4

被引：19

作者：

Gilardi, R ^{[1
]}

Hiess, A

Momono, N

Oda, M

Ido, M

Mesot, J

机构：

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

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

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

[4] Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan

来源：

EUROPHYSICS LETTERS | 2004年 / 66卷 / 06期

关键词：

D O I：

10.1209/epl/i2003-10265-1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Our inelastic neutron scattering experiments of the spin excitations in the slightly overdoped La1.83Sr0.17CuO4 compound show that, under the application of a magnetic field of 5 tesla, the low-temperature susceptibility undergoes a weight redistribution centered at the spin gap energy. Furthermore, by comparing the temperature dependence of the neutron data with ac susceptibility and magnetization measurements, we conclude that the filling-in of the spin gap tracks the irreversibility/inelting temperature rather than T-c2, which indicates an unusual interplay between the magnetic vortices and the spin excitations even in the slightly overdoped regime of high-temperature superconductors.

引用

页码：840 / 846

页数：7

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