Spins in the vortices of a high-temperature superconductor

被引：316

作者：

Lake, B

Aeppli, G

Clausen, KN

McMorrow, DF

Lefmann, K

Hussey, NE

Mangkorntong, N

Nohara, M

Takagi, H

Mason, TE

Schröder, A

机构：

[1] NEC Res, Princeton, NJ 08540 USA

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[3] Riso Natl Lab, Dept Condensed Matter Phys & Chem, DK-4000 Roskilde, Denmark

[4] Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan

[5] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England

[6] Univ Karlsruhe, Inst Phys, D-76128 Karlsruhe, Germany

来源：

SCIENCE | 2001年 / 291卷 / 5509期

关键词：

D O I：

10.1126/science.1056986

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Neutron scattering is used to characterize the magnetism of the vortices for the optimally doped high-temperature superconductor La2-xSrxCuO4 (x = 0.163) in an applied magnetic field. As temperature is reduced, Low-frequency spin fluctuations first disappear with the loss of vortex mobility, but then reappear. We find that the vortex state can be regarded as an inhomogeneous mixture of a superconducting spin fluid and a material containing a nearly ordered antiferromagnet. These experiments show that as for many other properties of cuprate superconductors, the important underlying microscopic forces are magnetic.

引用

页码：1759 / 1762

页数：4

共 29 条

[1] Nearly singular magnetic fluctuations in the normal state of a high-T-c cuprate superconductor [J].