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arXiv · 0909.4187

Muon-Spin Spectroscopy of the organometallic spin 1/2 kagome-lattice compound Cu(1,3-benzenedicarboxylate)

Lital Marcipar·Oren Ofer·Amit Keren·Emily A. Nytko·Daniel G. Nocera·Young S. Lee·Joel S. Helton·Chris Baines
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Abstract

Using muon spin resonance we examine the organometallic hybrid compound Cu(1,3-benzenedicarboxylate) [Cu(1,3-bdc)], which has structurally perfect spin 1/2 copper kagome planes separated by pure organic linkers. This compound has antiferromagnetic interactions with Curie-Weiss temperature of -33 K. We found slowing down of spin fluctuations starting at T=1.8 K, and that the state at T->0 is quasi-static with no long-range order and extremely slow spin fluctuations at a rate of 3.6 1/usec. This indicates that Cu(1,3-bdc) behaves as expected from a kagome magnet and could serve as a model kagome compound.

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Lital Marcipar, Oren Ofer, Amit Keren, Emily A. Nytko, Daniel G. Nocera, Young S. Lee, Joel S. Helton, Chris Baines. 2009-09-23. Muon-Spin Spectroscopy of the organometallic spin 1/2 kagome-lattice compound Cu(1,3-benzenedicarboxylate). https://doi.org/10.1103/physrevb.80.132402

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