Magnetic phase diagram and structure of the magnetic phases in the quasi-one-dimensional antiferromagnet BaCu_2Si_2O_7: symmetry analysis

TL;DR

This paper analyzes the magnetic phase diagram of BaCu_2Si_2O_7, explaining spin-reorientation transitions through symmetry and relativistic interactions, and determines the structure of its magnetic phases.

Contribution

It provides a symmetry-based analysis of magnetic phases and explains spin-reorientation transitions due to relativistic effects in BaCu_2Si_2O_7.

Findings

Spin-reorientation transitions explained by relativistic interactions

Magnetic phase structures determined

Connection between relativistic interactions and low-dimensionality discussed

Abstract

We have performed a symmetry analysis of the properties of the recently discovered quasi-one-dimensional compound BaCu_2Si_2O_7. The existence of the unusual spin-reorientation transitions is explained as an effect of the unusually strong relativistic interactions. The possible connection between the magnitude of the relativistic interactions and the low-dimensional structure of the BaCu_2Si_2O_7 is discussed. The structure of the magnetic phases is determined.