Magnetic properties of ferro-antiferromagnetic spin triangle chain

Fuente: arXiv
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Main Authors: Dmitriev, D. V., Krivnov, V. Ya.
Format: Preprint
Published: 2023
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author Dmitriev, D. V.
Krivnov, V. Ya.
author_facet Dmitriev, D. V.
Krivnov, V. Ya.
contents We study the frustrated spin-$\frac{1}{2}$ model consisting of a linear chain of triangles with ferro (F)- and antiferromagnetic (AF) interactions connected by ferromagnetic interactions (triangles chain). The ground state phase diagram as a function of the frustration parameter (a ratio of F and AF interactions) and the interaction between triangles consists of the ferromagnetic, two ferrimagnetic and the singlet phases. We study the magnetic properties in these phases and analyze the magnetization curves. We show that there are the magnetization plateau in the singlet phase and the magnetization jumps in some region of this phase. We study the low-thermodynamics and its relation to the specific structure of the excitation spectrum of the triangle chain.
format Preprint
id arxiv_https___arxiv_org_abs_2312_05544
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Magnetic properties of ferro-antiferromagnetic spin triangle chain
Dmitriev, D. V.
Krivnov, V. Ya.
Strongly Correlated Electrons
Statistical Mechanics
We study the frustrated spin-$\frac{1}{2}$ model consisting of a linear chain of triangles with ferro (F)- and antiferromagnetic (AF) interactions connected by ferromagnetic interactions (triangles chain). The ground state phase diagram as a function of the frustration parameter (a ratio of F and AF interactions) and the interaction between triangles consists of the ferromagnetic, two ferrimagnetic and the singlet phases. We study the magnetic properties in these phases and analyze the magnetization curves. We show that there are the magnetization plateau in the singlet phase and the magnetization jumps in some region of this phase. We study the low-thermodynamics and its relation to the specific structure of the excitation spectrum of the triangle chain.
title Magnetic properties of ferro-antiferromagnetic spin triangle chain
topic Strongly Correlated Electrons
Statistical Mechanics
url https://arxiv.org/abs/2312.05544