Electron spin resonance study of spin relaxation in the strong-leg spin ladder with nonmagnetic dilution

被引：3

作者：

Krasnikova, Yu, V ^{[1
,2
]}

Glazkov, V. N. ^{[1
,2
]}

Ponomaryov, A. ^{[3
]}

Zvyagin, S. A. ^{[3
]}

Povarov, K. Yu ^{[4
]}

Galeski, S. ^{[4
,5
]}

Zheludev, A. ^{[4
]}

机构：

[1] RAS, PL Kapitza Inst Phys Problems, Kosygin Str 2, Moscow 119334, Russia

[2] Natl Res Univ Higher Sch Econ, Int Lab Condensed Matter Phys, Myasnitskaya Str 20, Moscow 101000, Russia

[3] Helmholtz Zentrum Dresden Rossendorf, Dresden High Magnet Field Lab HLD EMFL, D-01328 Dresden, Germany

[4] Swiss Fed Inst Technol, Lab Solid State Phys, CH-8093 Zurich, Switzerland

[5] Max Planck Inst Chem Phys Solids, Nothnitzer Str 40, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2019年 / 100卷 / 14期

基金：

俄罗斯基础研究基金会; 俄罗斯科学基金会; 瑞士国家科学基金会;

关键词：

SUPERCONDUCTIVITY; IMPURITIES; ORDER;

D O I：

10.1103/PhysRevB.100.144446

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied electron spin resonance (ESR) absorption spectra for the nonmagnetically diluted strong-leg spin ladder magnet (C7H10N)(2)Cu(1-x)ZnxBr4 (abbreviated as DIMPY) down to 450 mK. Formation of the clusters with nonzero net magnetization is confirmed; the cluster-cluster interaction is evidenced by the concentration dependence of ESR absorption. High-temperature spin-relaxation time was found to increase with nonmagnetic dilution. The ESR linewidth analysis proves that the Dzyaloshinskii-Moriya (DM) interaction remains the dominant spin-relaxation channel in diluted DIMPY. Experimental data indicate that the dilution results in the weakening of the effective DM interaction, which can be interpreted as total suppression of DM interaction in the close vicinity of impurity atom.

引用

页数：7

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