Spin-spin interaction and magnetic state of 2-D Wigner crystal
I. V. Ponomarev, V. V. Flambaum, O. P. Sushkov
TL;DR
This paper investigates the magnetic interactions in a 2D Wigner crystal, demonstrating anti-ferromagnetic spin coupling and exploring potential magnetic states influenced by the spin-Peierls mechanism.
Contribution
It provides analytical and numerical calculations of anti-ferromagnetic interactions in 2D Wigner crystals and discusses their impact on magnetic states.
Findings
Anti-ferromagnetic spin-spin interaction exists between nearest electrons.
The interaction persists in the Wigner liquid state.
Possible magnetic states are influenced by the spin-Peierls mechanism.
Abstract
It is demonstrated that there is anti-ferromagnetic spin-spin interaction between nearest electrons in the 2D Wigner crystal. This is also valid for the Wigner liquid - the state with destroyed long-range order but preserved short-range one. We calculate the value of the anti-ferromagnetic interaction (both analytically and numerically) and discuss a possible magnetic state of the Wigner crystal. This state can be strongly influenced by the spin-Peierls mechanism.
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Taxonomy
TopicsQuantum and electron transport phenomena · Physics of Superconductivity and Magnetism · Topological Materials and Phenomena