Unconventional magnetization plateaus in a Shastry-Sutherland spin tube
Manmana SR, Picon JD, Schmidt KP, Mila F (2011)
Publication Status: Published
Publication Type: Journal article
Publication year: 2011
Journal
Publisher: EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
Book Volume: 94
Journal Issue: 6
DOI: 10.1209/0295-5075/94/67004
Abstract
Using density matrix renormalization group (DMRG) and perturbative continuous unitary transformations (PCUTs), we study the magnetization process in a magnetic field for all coupling strengths of a quasi-1D version of the 2D Shastry-Sutherland lattice, a frustrated spin tube made of two orthogonal dimer chains. At small inter-dimer coupling, plateaus in the magnetization appear at 1/6, 1/4, 1/3, 3/8, and 1/2. As in 2D, they correspond to a Wigner crystal of triplons. However, close to the boundary of the product singlet phase, plateaus of a new type appear at 1/5 and 3/4. They are stabilized by the localization of bound states of triplons. Their magnetization profile differs significantly from that of single-triplon plateaus and leads to specific NMR signatures. We address the possibility to stabilize such plateaus in further geometries by analyzing small finite clusters using exact diagonalizations and the PCUTs. Copyright (C) EPLA, 2011
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APA:
Manmana, S.R., Picon, J.-D., Schmidt, K.P., & Mila, F. (2011). Unconventional magnetization plateaus in a Shastry-Sutherland spin tube. EPL - Europhysics Letters, 94(6). https://doi.org/10.1209/0295-5075/94/67004
MLA:
Manmana, S. R., et al. "Unconventional magnetization plateaus in a Shastry-Sutherland spin tube." EPL - Europhysics Letters 94.6 (2011).
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