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arXiv · 1209.4693

Magnetic Order in the Spin-1/2 Kagome Antiferromagnet Vesignieite

Makoto Yoshida·Yoshihiko Okamoto·Masashi Takigawa·Zenji Hiroi
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Abstract

We report results of magnetic susceptibility and 51V- and 63,65Cu-NMR measurements on a high-quality powder sample of vesignieite BaCu3V2O8(OH)2, a candidate for the spin-1/2 kagome antiferromagnet. We observed a twostep magnetic transition: the appearance of spatially inhomogeneous static moments below 13 K and a long-range order below 9 K. The NMR data indicate a Q = 0 magnetic structure at 1.4 K with the in-plane spin components of three sublattices oriented at nearly 120 degrees to each other and the magnitude of the ordered moments of at least 0.6 muB

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Makoto Yoshida, Yoshihiko Okamoto, Masashi Takigawa, Zenji Hiroi. 2012-09-21. Magnetic Order in the Spin-1/2 Kagome Antiferromagnet Vesignieite. https://doi.org/10.7566/jpsj.82.013702

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