Spin dynamics in the Nd2-xCexCuO4 system: Estimation of the rate of spin fluctuations

被引：3

作者：

Chechersky, V

Kopelev, NS

Nath, A

Peng, JL

Greene, RL

O, B

Larkin, MI

Markert, JT

机构：

[1] DREXEL UNIV,DEPT CHEM,PHILADELPHIA,PA 19104

[2] UNIV MARYLAND,DEPT PHYS,CTR SUPERCOND RES,COLLEGE PK,MD 20742

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.54.16254

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We estimate the rate of fluctuations as 10(11) sec(-1) in the normal state of Nd1.85Ce0.15CuO4 assuming that the spin fluctuations are the primary source of relaxation phenomena affecting the shape of the Mossbauer peaks. In the oxygenated and nonsuperconducting compound, the magnetic order is quasistatic rather than static as is generally believed. The spin clusters fluctuate at an approximate rate of 10(9) sec(-1) below the Neel temperature. These findings may bear on the possible correlation between antiferromagnetic spin fluctuations and superconductivity.

引用

页码：16254 / 16258

页数：5

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