Origin of the intermediate-temperature magnetic specific heat capacity in the spin-liquid candidate Ca10Cr7O28
Abstract
We present several approximate calculations of the specific heat capacity of the model for Ca10Cr7O28 proposed by Balz et al. [Phys. Rev. B 95, 174414 (2017)], using methods including exact diagonalization, thermal pure quantum states, and high-temperature expansions. In none of these cases are we able to reproduce the magnitude of the zero-field specific heat capacity shown in the intermediate-temperature (∼5–15K) experimental data. We discuss possible reasons for the discrepancy, and what it might tell us about the magnetic Hamiltonian for Ca10Cr7O28.
Citation
Crossley , J & Hooley , C 2024 , ' Origin of the intermediate-temperature magnetic specific heat capacity in the spin-liquid candidate Ca 10 Cr 7 O 28 ' , Physical Review B - Condensed Matter and Materials Physics , vol. 109 , no. 16 , 165138 . https://doi.org/10.1103/PhysRevB.109.165138
Publication
Physical Review B - Condensed Matter and Materials Physics
Status
Peer reviewed
ISSN
2469-9950Type
Journal article
Description
Funding: JAC acknowledges support from UKRI via EPSRC grant EP/T518062/1. CAH acknowledges support from UKRI via EPSRC grant EP/R031924/1.Collections
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