Mechanisms for spin supersolidity in S=1/2 spin-dimer antiferromagnets

Picon JD, Albuquerque AF, Schmidt KP, Laflorencie N, Troyer M, Mila F (2008)

Publication Status: Published

Publication Type: Journal article

Publication year: 2008

Journal

Physical Review B American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 78

Journal Issue: 18

DOI: 10.1103/PhysRevB.78.184418

Abstract

Using perturbative expansions and the contractor renormalization (CORE) algorithm, we obtain effective hard-core bosonic Hamiltonians describing the low-energy physics of S=1/2 spin-dimer antiferromagnets known to display supersolid phases under an applied magnetic field. The resulting effective models are investigated by means of mean-field analysis and quantum Monte Carlo simulations. A "leapfrog mechanism," through means of which extra singlets delocalize in a checkerboard-solid environment via correlated hoppings, is unveiled that accounts for the supersolid behavior.

Authors with CRIS profile

Kai Phillip Schmidt Professur für Theoretische Physik

Involved external institutions

Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich CH Switzerland (CH) University of Paris 11 - Paris-Sud / Université Paris XI Paris-Sud FR France (FR) École Polytechnique Fédérale de Lausanne (EPFL) CH Switzerland (CH)

How to cite

APA:

Picon, J.-D., Albuquerque, A.F., Schmidt, K.P., Laflorencie, N., Troyer, M., & Mila, F. (2008). Mechanisms for spin supersolidity in S=1/2 spin-dimer antiferromagnets. Physical Review B, 78(18). https://dx.doi.org/10.1103/PhysRevB.78.184418

MLA:

Picon, J. -D., et al. "Mechanisms for spin supersolidity in S=1/2 spin-dimer antiferromagnets." Physical Review B 78.18 (2008).

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