# Low-Lying Magnetic Excitation of the Shastry-Sutherland Model

Source: [Low-Lying Magnetic Excitation of the Shastry-Sutherland Model](<https://www.sota2.com/research/paper/68fa254b2c2a3760193aecba>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-27T03:00:28.262Z

Authors: K. Totsuka, S. Miyahara, K. Ueda

Published: 2001-01-10T09:34:16.000Z

## Abstract

By using perturbation calculation and numerical diagonalization, low-energy spin dynamics of the Shastry-Sutherland model is investigated paying particular attention to the two-particle coherent motion. In addition to spin-singlet- and triplet bound states, we find novel branches of coherent motion of a bound quintet pair, which are usually unstable because of repulsion. Unusual dispersion observed in neutron-scattering measurements are explained by the present theory. The importance of the effects of phonon is also pointed out.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/cond-mat/0101125>)

[PDF](<https://arxiv.org/pdf/cond-mat/0101125.pdf>)