High-field ESR on quantum spin systems

H. Nojiri; T. Asano; Y. Ajiro; H. Kageyama; Y. Ueda; M. Motokawa

doi:10.1016/S0921-4526(00)00598-6

High-field ESR on quantum spin systems

H. Nojiri, T. Asano, Y. Ajiro, H. Kageyama, Y. Ueda, M. Motokawa

Institute for Materials Research (IMR) (institute affiliation only)

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

High-field electron spin resonance (ESR) experiments have been performed on quantum spin systems. A distinct field-induced crossover between the gap-less spinon regime and the gapped sine-Gordon regime is observed for the Heisenberg quantum spin chain; CuBenzoate. In a Shastry and Sutherland model compound SrCu₂(BO₃)₂, a set of multiple-triplet excitations has been resolved by utilizing high-resolution ESR. The splitting of the two-triplet bound state into a few discrete energy levels is considered as the evidence of the extreme localization of the triplet excitations in this compound. The present results indicate the unique and powerful features of ESR in the study of magnetic excitations.

Original language	English
Pages (from-to)	14-19
Number of pages	6
Journal	Physica B: Condensed Matter
Volume	294-295
DOIs	https://doi.org/10.1016/S0921-4526(00)00598-6
Publication status	Published - 2001 Jan

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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Nojiri, H., Asano, T., Ajiro, Y., Kageyama, H., Ueda, Y., & Motokawa, M. (2001). High-field ESR on quantum spin systems. Physica B: Condensed Matter, 294-295, 14-19. https://doi.org/10.1016/S0921-4526(00)00598-6

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abstract = "High-field electron spin resonance (ESR) experiments have been performed on quantum spin systems. A distinct field-induced crossover between the gap-less spinon regime and the gapped sine-Gordon regime is observed for the Heisenberg quantum spin chain; CuBenzoate. In a Shastry and Sutherland model compound SrCu2(BO3)2, a set of multiple-triplet excitations has been resolved by utilizing high-resolution ESR. The splitting of the two-triplet bound state into a few discrete energy levels is considered as the evidence of the extreme localization of the triplet excitations in this compound. The present results indicate the unique and powerful features of ESR in the study of magnetic excitations.",

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AU - Nojiri, H.

AU - Asano, T.

AU - Ajiro, Y.

AU - Kageyama, H.

AU - Ueda, Y.

AU - Motokawa, M.

PY - 2001/1

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AB - High-field electron spin resonance (ESR) experiments have been performed on quantum spin systems. A distinct field-induced crossover between the gap-less spinon regime and the gapped sine-Gordon regime is observed for the Heisenberg quantum spin chain; CuBenzoate. In a Shastry and Sutherland model compound SrCu2(BO3)2, a set of multiple-triplet excitations has been resolved by utilizing high-resolution ESR. The splitting of the two-triplet bound state into a few discrete energy levels is considered as the evidence of the extreme localization of the triplet excitations in this compound. The present results indicate the unique and powerful features of ESR in the study of magnetic excitations.

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