Date of this Version
Physical Review Letters
We present thermodynamic and neutron data on Ni3V2O8, a spin-1 system on a kagomé staircase. The extreme degeneracy of the kagomé antiferromagnet is lifted to produce two incommensurate phases at finite T—one amplitude modulated, the other helical—plus a commensurate canted antiferromagnet for T→0. The H−T phase diagram is described by a model of competing first and second neighbor interactions with smaller anisotropic terms. Ni3V2O8 thus provides an elegant example of order from subleading interactions in a highly frustrated system.
Lawes, G. J., Kenzelmann, M., Rogado, N. S., Kim, K., Jorge, G. A., Cava, R. J., Aharony, A., Entin-Wohlman, O., Harris, A., Yildirim, T., Huang, Q., Park, S., Broholm, C., & Ramirez, A. P. (2004). Competing Magnetic Phases on a Kagomé Staircase. Physical Review Letters, 93 247201-1-247201-4. http://dx.doi.org/10.1103/PhysRevLett.93.247201
Date Posted: 20 August 2015
This document has been peer reviewed.