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Phys. Rev. B 82, 054435 (2010) [6 pages]

Metamagnetic transition in single-crystal Bi4Cu3V2O14

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H. D. Zhou1,*, E. S. Choi1, Y. J. Jo1, L. Balicas1, J. Lu1, L. L. Lumata1,2, R. R. Urbano1, P. L. Kuhns1, A. P. Reyes1, J. S. Brooks1,2, R. Stillwell1, S. W. Tozer1, C. R. Wiebe1,3, J. Whalen1, and T. Siegrist1,4
1National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306-4005, USA
2Department of Physics, Florida State University, Tallahassee, Florida 32306-3016, USA
3Department of Chemistry, University of Winnipeg, Winnipeg, Manitoba, Canada R3B 2E9
4Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, Florida 32310, USA

Received 12 April 2010; revised 16 August 2010; published 31 August 2010

We report on high magnetic field magnetization, magnetic torque, specific-heat, and 51V NMR measurements on Bi4Cu3V2O14 single crystals, which display a characteristic chain structure along the crystallographic a axis. The system undergoes a magnetic phase transition below 5.5 K. For the magnetic field H∥a, the data reveal a metamagnetic transition from an antiferromagnetic (AFM) to a weak-ferromagnetic (WFM) state at Hc≃7.6 T. Based on our results, the low-temperature magnetic phase diagram is determined. Furthermore, the magnetization measurements along with the NMR results suggest that the weak ferromagnetism along the a axis is possibly due to a canted AFM spin structure with two distinct magnetic sublattices.

© 2010 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.82.054435
DOI:
10.1103/PhysRevB.82.054435
PACS:
75.50.-y, 75.30.Gw

*zhou@magnet.fsu.edu

 
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