Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain: Fedotovite K2Cu3 O (SO4)3

M. Fujihala, T. Sugimoto, T. Tohyama, S. Mitsuda, R. A. Mole, D. H. Yu, S. Yano, Y. Inagaki, H. Morodomi, T. Kawae, H. Sagayama, R. Kumai, Y. Murakami, K. Tomiyasu, A. Matsuo, K. Kindo

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Abstract

Fedotovite K2Cu3O(SO4)3 is a candidate of new quantum spin systems, in which the edge-shared tetrahedral (EST) spin clusters consisting of Cu2+ are connected by weak intercluster couplings forming a one-dimensional array. Comprehensive experimental studies by magnetic susceptibility, magnetization, heat capacity, and inelastic neutron scattering measurements reveal the presence of an effective S=1 Haldane state below T≅4 K. Rigorous theoretical studies provide an insight into the magnetic state of K2Cu3O(SO4)3: an EST cluster makes a triplet in the ground state and a one-dimensional chain of the EST induces a cluster-based Haldane state. We predict that the cluster-based Haldane state emerges whenever the number of tetrahedra in the EST is even.

Original languageEnglish
Article number077201
JournalPhysical Review Letters
Volume120
Issue number7
DOIs
Publication statusPublished - Feb 12 2018

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tetrahedrons
inelastic scattering
neutron scattering
specific heat
magnetic permeability
magnetization
ground state

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Fujihala, M., Sugimoto, T., Tohyama, T., Mitsuda, S., Mole, R. A., Yu, D. H., ... Kindo, K. (2018). Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain: Fedotovite K2Cu3 O (SO4)3. Physical Review Letters, 120(7), [077201]. https://doi.org/10.1103/PhysRevLett.120.077201

Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain : Fedotovite K2Cu3 O (SO4)3. / Fujihala, M.; Sugimoto, T.; Tohyama, T.; Mitsuda, S.; Mole, R. A.; Yu, D. H.; Yano, S.; Inagaki, Y.; Morodomi, H.; Kawae, T.; Sagayama, H.; Kumai, R.; Murakami, Y.; Tomiyasu, K.; Matsuo, A.; Kindo, K.

In: Physical Review Letters, Vol. 120, No. 7, 077201, 12.02.2018.

Research output: Contribution to journalArticle

Fujihala, M, Sugimoto, T, Tohyama, T, Mitsuda, S, Mole, RA, Yu, DH, Yano, S, Inagaki, Y, Morodomi, H, Kawae, T, Sagayama, H, Kumai, R, Murakami, Y, Tomiyasu, K, Matsuo, A & Kindo, K 2018, 'Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain: Fedotovite K2Cu3 O (SO4)3', Physical Review Letters, vol. 120, no. 7, 077201. https://doi.org/10.1103/PhysRevLett.120.077201
Fujihala, M. ; Sugimoto, T. ; Tohyama, T. ; Mitsuda, S. ; Mole, R. A. ; Yu, D. H. ; Yano, S. ; Inagaki, Y. ; Morodomi, H. ; Kawae, T. ; Sagayama, H. ; Kumai, R. ; Murakami, Y. ; Tomiyasu, K. ; Matsuo, A. ; Kindo, K. / Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain : Fedotovite K2Cu3 O (SO4)3. In: Physical Review Letters. 2018 ; Vol. 120, No. 7.
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