Effect of Zn doping on the spin gap characteristics of BaCu2V2O8: A 51V NMR study

C. S. Lue, B. X. Xie, T. H. Su

研究成果: Article同行評審

摘要

Spin gap characteristics of the Zn-substituted quasi-one-dimensional (1D) compounds BaCu2-xZnxV2O8 (x=0, 0.1, 0.2, and 0.5) have been investigated by means of the 51V NMR measurements. For all studied compositions, two 51V NMR lines which are associated with two vanadium crystallographic sites have been resolved. Within the present doping level, the temperature-dependent NMR shift of each individual site exhibits a character of spin gap. While the deduced spin gap remains almost unchanged, the entire curve of the NMR shift substantially decreases for the high Zn concentration. Such an observation is interpreted as the reduction of the transferred hyperfine field from Cu2+, due to the creation of spin vacancies along the spin chains.

原文English
頁(從 - 到)e370-e371
期刊Journal of Magnetism and Magnetic Materials
310
發行號2 SUPPL. PART 2
DOIs
出版狀態Published - 2007 三月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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