A Spin-Polaron Technique Utilized on Triangular-Lattice Antiferromagnet

TL;DR

This paper develops a symmetric spin-polaron technique for triangular-lattice antiferromagnets, enabling the calculation of quasiparticle dispersion in an extended t-J model and comparison with other methods.

Contribution

It introduces a modified, symmetric spin-polaron approach specifically for triangular-lattice antiferromagnets, advancing the analysis of quasiparticle behavior.

Findings

Calculated quasiparticle dispersion using the new technique.

Compared dispersion results with other existing methods.

Demonstrated the effectiveness of the symmetric spin-polaron approach.

Abstract

By expressing the Holstein-Primakoff transformation in a symmetric form a modified spin-polaron technique utilized on triangular-lattice antiferromagnet is developed. With the technique, we have treated an extended t-J model, calculated the quasiparticle dispersion, and we also compared the the dispersion with that obtained by other method.