Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets.

Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets. Research Abstract Details 

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Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets. Abstract Text:

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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Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Physical review letters

VOLUME: 100

Page Numbers: 090401

Journal Abbreviation: Phys. Rev. Lett.

ISSN: 0031-9007

DAY: 3

MONTH: 03

YEAR: 2008

Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Supersolid phase induced by correlated hopping in spin-1/2 frustrated quantum magnets.

AFFILIATION: Institute of Theoretical Physics, Ecole Polytechnique Fédérale de Lausanne, CH 1015 Lausanne, Switzerland.

Country: United States

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MEDLINETA: Phys Rev Lett

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