Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets
Schmidt KP, Dorier J, Laeuchli AM, Mila F (2008)
Publication Status: Published
Publication Type: Journal article
Publication year: 2008
Journal
Publisher: AMER PHYSICAL SOC
Book Volume: 100
Journal Issue: 9
DOI: 10.1103/PhysRevLett.100.090401
Abstract
We show that correlated hopping of triplets, which is often the dominant source of kinetic energy in dimer-based frustrated quantum magnets, produces a remarkably strong tendency to form supersolid phases in a magnetic field. These phases are characterized by simultaneous modulation and ordering of the longitudinal and transverse magnetization, respectively. Using quantum Monte Carlo and a semiclassical approach for an effective hard-core boson model with nearest-neighbor repulsion on a square lattice, we prove, in particular, that a supersolid phase can exist even if the repulsion is not strong enough to stabilize an insulating phase at half-filling. Experimental implications for frustrated quantum antiferromagnets in a magnetic field at zero and finite temperature are discussed.
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APA:
Schmidt, K.P., Dorier, J., Laeuchli, A.M., & Mila, F. (2008). Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets. Physical Review Letters, 100(9). https://doi.org/10.1103/PhysRevLett.100.090401
MLA:
Schmidt, Kai Phillip, et al. "Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets." Physical Review Letters 100.9 (2008).
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