Spin dynamics in the low-temperature tetragonal phase of ≃1/8 doped single crystal La1.67Eu0.2Sr0.13CuO4

被引：32

作者：

Suh, BJ

Hammel, PC

Hücker, M

Büchner, B

Ammerahl, U

Revcolevschi, A

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Catholic Univ S Korea, Div Nat Sci, Puchon, South Korea

[3] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[4] Univ Paris 11, Chim Solide Lab, F-91405 Orsay, France

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.61.R9265

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present La-139 and Cu-63 NMR relaxation measurements in single crystal La1.67Eu0.2Sr0.13CuO4. A strong peak in the La-139 spin-lattice relaxation rate observed in the spin ordered state is well described by the BPP mechanism [Bloembergen, Purcell, and Pound, Phys. Rev. 73, 679 (1948)] and arises from continuous slowing of electronic spin fluctuations with decreasing temperature; these spin fluctuations exhibit XY-like anisotropy in the ordered state. The spin pseudogap is significantly enhanced by the static charge-stripe order in the LTT phase.

引用

页码：R9265 / R9268

页数：4

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