Intrinsic susceptibility and bond defects in the novel two dimensional frustrated antiferromagnet Ba2Sn2ZnCr7pGa10-7pO22 -: art. no. 217202

被引：32

作者：

Bono, D ^{[1
]}

Mendels, P

Collin, G

Blanchard, N

机构：

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

[2] CEA, CNRS, CE Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.92.217202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present microscopic and macroscopic magnetic properties of the highly frustrated antiferromagnet Ba2Sn2ZnCr7pGa10-7pO22, respectively, probed with NMR and SQUID experiments. The T variation of the intrinsic susceptibility of the Cr3+ frustrated Kagome bilayer, chi(Kag), displays a maximum around 45 K. The dilution of the magnetic lattice has been studied in detail for 0.29less than or equal topless than or equal to0.97. Novel dilution independent defects, likely related with magnetic bond disorder, are evidenced and discussed. We compare our results to SrCr9pGa12-9pO19. Both bond defects and spin vacancies do not affect the average susceptibility of the Kagome bilayers.

引用

页码：217202 / 1

页数：4

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