Anomalous spin disordered properties of strongly correlated honeycomb compound In3Cu2VO9

We study the ground-state and finite-temperature magnetic properties of an interlayer frustrated J 1 − J 2 − J c Heisenberg model on three-dimensional honeycomb lattice by employing the Schwinger boson mean-field theory, focusing on the low-energy physics in In3Cu2VO9. We find that with the increase...

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Bibliographic Details
Published in:AIP advances 2017-05, Vol.7 (5), p.055825-055825-6
Main Authors: Jia, Shi-Qing, Wang, Qing-Wei, Yu, Xiang-Long, Zou, Liang-Jian
Format: Article
Language:English
Subjects:
Antiferromagnetism
Correlation analysis
Heisenberg theory
Honeycomb construction
Interlayers
Magnetic permeability
Magnetic properties
Mean field theory
Phase transitions
Statistical models
Three dimensional models
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Summary:We study the ground-state and finite-temperature magnetic properties of an interlayer frustrated J 1 − J 2 − J c Heisenberg model on three-dimensional honeycomb lattice by employing the Schwinger boson mean-field theory, focusing on the low-energy physics in In3Cu2VO9. We find that with the increase of interlayer coupling J c from 0 to 3.6 meV, the interlayer frustrated system transits from an antiferromagnetic (AFM) phase to a state with intralayer AFM order and interlayer disorder. This spin disordered phase explains not only the intralayer phase transition at T N = 38 K, but also the qualitative behaviors of the intermediate-temperature specific heat and magnetic susceptibility of In3Cu2VO9.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4977227