Low temperature magnetization of the S=1/2 kagome antiferromagnet ZnCu3(OH)6Cl2

被引：116

作者：

Bert, F. ^{[1
]}

Nakamae, S. ^{[2
]}

Ladieu, F. ^{[2
]}

L'Hote, D. ^{[2
]}

Bonville, P. ^{[2
]}

Duc, F.

Trombe, J. -C. ^{[3
]}

Mendels, P. ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8502, Phys Solides Lab, F-91405 Orsay, France

[2] CEA Saclay, DSM, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

[3] CNRS, UPR 8011, Ctr Elaborat Mat & Etudes Struct, F-31055 Toulouse, France

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.76.132411

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dc magnetization of the unique S=1/2 kagome antiferromagnet Herbertsmithite has been measured down to 0.1 K. No sign of spin freezing is observed in agreement with former mu SR and ac-susceptibility results. The low temperature magnetic response is dominated by a defect contribution which exhibits an energy scale similar or equal to 1 K, likely reflecting the coupling of the defects. The defect component is saturated at low temperature by H greater than or similar to 8 T applied magnetic fields which enables us to estimate an upper bound for the nonsaturated intrinsic kagome susceptibility at T=1.7 K.

引用

页数：4

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