Local spin susceptibility of the S=1/2 kagome lattice in ZnCu3(OD)6Cl2

Author(s)
Imai, T.; Fu, M.; Han, Tianheng; Lee, Young S.
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Abstract
We report a single-crystal [superscript 2]D NMR investigation of the nearly ideal spin S=1/2 kagome lattice ZnCu[subscript 3](OD)[subscript 6]Cl[subscript 2]. We successfully identify [superscript 2]D NMR signals originating from the nearest neighbors of Cu[superscript 2+] defects occupying Zn sites. From the [superscript 2]D Knight-shift measurements, we demonstrate that weakly interacting Cu[superscript 2+] spins at these defects cause the large Curie-Weiss enhancement toward T=0 commonly observed in the bulk susceptibility data. We estimate the intrinsic spin susceptibility of the kagome planes by subtracting defect contributions, and explore several scenarios.
Date issued
2011-07
URI
http://hdl.handle.net/1721.1/67050
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review B
Publisher
American Physical Society
Citation
Imai, T. et al. “Local spin susceptibility of the S=1/2 kagome lattice in ZnCu_{3}(OD)_{6}Cl_{2}.” Physical Review B 84 (2011): n. pag. Web. 17 Nov. 2011. © 2011 American Physical Society
Version: Final published version
ISSN
1098-0121
1550-235X
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