dc.contributor.authorWierschem, Keola
dc.contributor.authorKato, Yasuyuki
dc.contributor.authorNishida, Yusuke
dc.contributor.authorBatista, Cristian D.
dc.contributor.authorSengupta, Pinaki
dc.identifier.citationWeickert, F., Küchler, R., Steppke, A., Pedrero, L., Nicklas, M., Brando, M., et al. (2012). Low-temperature thermodynamic properties near the field-induced quantum critical point in NiCl2-4SC(NH2)2. Physical Review B, 85(18), 184408-.en_US
dc.description.abstractWe study a spin-one Heisenberg model with exchange interaction, J, uniaxial single-ion exchange anisotropy, D, and Zeeman coupling to a magnetic field, B, parallel to the symmetry axis. We com- pute the (D/J,B/J) quantum phase diagram for square and simple cubic lattices by combining an- alytical and Quantum Monte Carlo approaches, and find a transition between XY-antiferromagnetic and ferronematic phases that spontaneously break the U(1) symmetry of the model. In the language of bosonic gases, this is a transition between a Bose-Einstein condensate (BEC) of single bosons and a BEC of pairs. Our work opens up new avenues for measuring this transition in real magnets.en_US
dc.relation.ispartofseriesPhysical review Ben_US
dc.rights© 2012 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevB.86.201108].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.titleMagnetic and nematic orderings in spin-1 antiferromagnets with single-ion anisotropyen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

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