M\"ossbauer measurements of GaFeO$_3$ single crystal multiferroic

TL;DR

This study uses M"ossbauer spectroscopy to analyze GaFeO$_3$ single crystals, revealing magnetic features that challenge the conventional ferrimagnetic model of this multiferroic material.

Contribution

It provides new insights into the magnetic structure of GaFeO$_3$ through detailed M"ossbauer analysis of single crystals, highlighting discrepancies with existing models.

Findings

Detection of a small perpendicular magnetic component

Inconsistency with the standard ferrimagnetic structure

Spectra consistent across different temperatures

Abstract

M\"ossbauer measurements on single crystal absorbers at room and at low temperatures were performed. The results are fully consistent with previously published reports by other groups. Spectra of single crystals were simultaneously analyzed including magnetic dipole and electric quadrupole interactions. The analysis shows that there is a small component of magnetic moments perpendicular to the magnetic easy axis. M\"ossbauer data seem not agree with commonly accepted ferrimagnetic structure of GaFeO$_3$.