Magnetic Frustration and Spin-Charge Separation in 2D Strongly Correlated Electron Systems

TL;DR

This paper proposes that the ground state of the 2D t-J model near half-filling exhibits magnetic frustration and spin-charge separation, explaining observed correlation functions in strongly correlated electron systems.

Contribution

It introduces a novel perspective that the 2D t-J model's ground state involves both magnetic frustration and spin-charge separation near half-filling.

Findings

Ground state exhibits both ferromagnetic and antiferromagnetic fluctuations.

The frustrated state accounts for observed spin and charge correlation behaviors.

Supports the spin-charge separation hypothesis in 2D strongly correlated systems.

Abstract

I propose that the ground state of the 2D $t$-$J$ model near half-filling with $J/t\sim1/3$ has both ferromagnetic and antiferromagnetic fluctuations leading to a magnetically frustrated ground state. I further argue that the frustrated state is spin-charge separated to account for the observed behavior of the equal time spin and charge correlation functions.