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Observation of thermodynamics originating from a mixed-spin ferromagnetic chain
- Source :
- Phys. Rev. B 106, L100404 (2022)
- Publication Year :
- 2022
-
Abstract
- We present a model compound that forms a mixed-spin ferromagnetic chain. Our material design, based on the organic radicals, affords a verdazyl-based complex (p-Py-V)2[Mn(hfac)2]. The molecular orbital calculations of the compound indicate the formation of a mixed spin-(1/2, 1/2, 5/2) ferromagnetic chain. The temperature dependence of magnetic susceptibility reveals its ferromagnetic behavior. The magnetic specific heat exhibits a double-peak structure and indicates a phase transition at the low-temperature peak. The observed characteristics are explained using the quantum Monte Carlo calculations. Furthermore, the modified spin-wave theory verifies that the double-peak structure of the specific heat significantly reflects the relative ration of the acoustic excitation band and the optical excitation gap.
- Subjects :
- Condensed Matter - Strongly Correlated Electrons
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 106, L100404 (2022)
- Publication Type :
- Report
- Accession number :
- edsarx.2209.07681
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.106.L100404