TmFeO3 (TFO) is a canted antiferromagnet that undergoes a spin reorientation transition (SRT) with temperature between 82 and 94 K in single crystals. In this temperature region, the Néel vector continuously rotates from the crystallographic c axis (below 82 K) to the a axis (above 94 K). The SRT allows for a temperature control of distinct antiferromagnetic states without the need for a magnetic field, making it apt for applications working at terahertz frequencies. For device applications, thin films of TFO are required as well as an electrical technique for read-out of the magnetic state. Here, we demonstrate that orthorhombic TFO thin films can be grown by pulsed laser deposition and the detection of the SRT in TFO thin films can be accessed by making use of the all-electrical spin Hall magnetoresistance, in good agreement for the temperature range where the SRT occurs in bulk crystals. Our results demonstrate that one can electrically detect the SRT in insulators.
Bibliographical noteKAUST Repository Item: Exported on 2021-02-09
Acknowledged KAUST grant number(s): OSR-2019-CRG8-4048
Acknowledgements: The authors gratefully acknowledge funding by Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) Project No. 358671374. This work was supported by the Max Planck Graduate Center with the Johannes Gutenberg–
Universität Mainz (MPGC) as well the Graduate School of Excellence Materials Science in Mainz (GSC266). This work
was funded by DFG Grant No. TRR 173 Spin+X A01 268565370 and KAUST Grant No. OSR-2019-CRG8-4048.2
and FET-open s-Nebula (No. 863155). L.B. acknowledges the European Union’s Horizon 2020 research and innovation rogram under Marie Skłodowska-Curie Grant Agreement ARTES No. 793159. We acknowledge Diamond Light Source
for time on beamline I06 under Proposal No. MM23819.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.