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2015 | 128 | 2 | 156-158
Article title

Thermodynamics of the Exactly Solvable Spin-Electron Tetrahedral Chain

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EN
Abstracts
EN
An exactly solvable spin-electron tetrahedral chain, where the Ising spins localized at nodal lattice sites regularly alternate with three equivalent lattice sites available for one mobile electron is considered. The system with ferromagnetic interaction between the Ising spins and electrons exhibits an enhanced magnetocaloric effect in the limit H/|J| → 0 when the entropy is very small, whereas the system with antiferromagnetic interaction between the Ising spins and electrons exhibits an enhanced magnetocaloric effect around the field H/J=1 when the entropy is sufficiently close to the value S/2N = ln[(1+√5)/2]. We study the thermodynamics of the system in these field regions.
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EN
Year
Volume
128
Issue
2
Pages
156-158
Physical description
Dates
published
2015-08
References
  • [1] M. Rojas, S.M. de Souza, O. Rojas, arXiv: 1212.5552
  • [2] D. Antonosyan, S. Bellucci, V. Ohanyan, Phys. Rev. B 79, 014432 (2009), doi: 10.1103/PhysRevB.79.014432
  • [3] L. Gálisová, J. Strečka, Acta Phys. Pol. A 127, 216 (2015), doi: 10.12693/AphysPolA.127.216
  • [4] M.E. Fisher, Phys. Rev. 113, 969 (1959), doi: 10.1103/PhysRev.113.969
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv128n204kz
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