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arXiv · 2301.05823

Magnetic excitations in the one-dimensional Heisenberg-Ising model with external fields and their experimental realizations

Jiahao Yang·Xiao Wang·Jianda Wu
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Abstract

The one dimensional (1D) spin-1/2 Heisenberg-Ising model, a prototype quantum many-body system, has been intensively studied for many years. In this review, after a short introduction on some basic concepts of group theory for the octahedral group, a detailed pedagogical framework is laid down to derive the low-energy effective Hamiltonian for the Co-based materials. The 1D spin-1/2 Heisenberg-Ising model is obtained when applying the analysis to quasi-1D antiferromagnetic materials $\rm BaCo_2V_2O_8$ and $\rm SrCo_2V_2O_8$. After the preparation, we review the theoretical progresses of a variety of novel magnetic excitations and emergent physics in the 1D spin-1/2 Heisenberg-Ising model, and further summarize their recent experimental realizations.

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Jiahao Yang, Xiao Wang, Jianda Wu. 2023-01-14. Magnetic excitations in the one-dimensional Heisenberg-Ising model with external fields and their experimental realizations. https://doi.org/10.1088/1751-8121%2Facad48

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