Freezing of a stripe liquid

被引：41

作者：

Lee, SH ^{[1
]}

Tranquada, JM

Yamada, K

Buttrey, DJ

Li, Q

Cheong, SW

机构：

[1] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[2] Univ Maryland, College Pk, MD 20742 USA

[3] Brookhaven Natl Lab, Upton, NY 11973 USA

[4] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[5] Univ Delaware, Dept Chem Engn, Newark, DE 19716 USA

[6] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08855 USA

[7] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.88.126401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The existence of a stripe-liquid phase in a layered nickelate, La1.725Sr0.275NiO4, is demonstrated through neutron scattering measurements. We show that incommensurate magnetic fluctuations evolve continuously through the charge-ordering temperature, although an abrupt decrease in the effective damping energy is observed on cooling through the transition. The energy and momentum dependence of the magnetic scattering are parametrized with a damped-harmonic-oscillator model describing overdamped spin waves in the antiferromagnetic domains defined instantaneously by charge stripes.

引用

页码：4 / 126401

页数：4

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