Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field

Dmitriev, D. V, Krivnov VY, Schnack J, Richter J (2020)
PHYSICAL REVIEW B 101(5): 054427.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Dmitriev, D., V; Krivnov, V. Ya; Schnack, JürgenUniBi ; Richter, J.
Abstract / Bemerkung
We study the thermodynamics of the delta-chain with competing ferro- and antiferromagnetic interactions in an external magnetic field which generalizes the field-free case studied previously. This model plays an important role for the recently synthesized compound Fe10Gd10, which is nearly quantum critical, as well as for the new kagome fluoride Cs2LiTi3F12. The classical version of the model is solved exactly and explicit analytical results for the low-temperature thermodynamics are obtained. The s-spin quantum model is studied using exact diagonalization and finite-temperature Lanczos techniques. Particular attention is focused on the magnetization and the susceptibility. The magnetization of the classical model in the ferromagnetic part of the phase diagram defines the universal scaling function which is valid for the quantum model. The dependence of the susceptibility on the spin quantum number s at the critical point between the ferro- and ferrimagnetic phases is studied and the relation to Fe10Gd10 is discussed.
Erscheinungsjahr
2020
Zeitschriftentitel
PHYSICAL REVIEW B
Band
101
Ausgabe
5
Art.-Nr.
054427
ISSN
2469-9950
eISSN
2469-9969
Page URI
https://pub.uni-bielefeld.de/record/2941884

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Dmitriev, D. V, Krivnov VY, Schnack J, Richter J. Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field. PHYSICAL REVIEW B. 2020;101(5): 054427.
Dmitriev, D., V., Krivnov, V. Y., Schnack, J., & Richter, J. (2020). Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field. PHYSICAL REVIEW B, 101(5), 054427. doi:10.1103/PhysRevB.101.054427
Dmitriev, D., V., Krivnov, V. Y., Schnack, J., and Richter, J. (2020). Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field. PHYSICAL REVIEW B 101:054427.
Dmitriev, D., V., et al., 2020. Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field. PHYSICAL REVIEW B, 101(5): 054427.
V. Dmitriev, D., et al., “Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field”, PHYSICAL REVIEW B, vol. 101, 2020, : 054427.
Dmitriev, D., V., Krivnov, V.Y., Schnack, J., Richter, J.: Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field. PHYSICAL REVIEW B. 101, : 054427 (2020).
Dmitriev, D., V, Krivnov, V. Ya, Schnack, Jürgen, and Richter, J. “Exact magnetic properties for classical delta-chains with ferromagnetic and antiferromagnetic interactions in applied magnetic field”. PHYSICAL REVIEW B 101.5 (2020): 054427.

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