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Electrical detection of the spin reorientation transition in antiferromagnetic TmFeO3 thin films by spin Hall magnetoresistance

DOI: 10.1103/PhysRevB.103.024423 DOI Help

Authors: S. Becker (University of Mainz) , A. Ross (University of Mainz; Graduate School of Excellence “Materials Science in Mainz” (MAINZ)) , R. Lebrun (University of Mainz; Unité Mixte de Physique CNRS, Thales, University Paris-Sud, Université Paris-Saclay) , L. Baldrati (University of Mainz) , S. Ding (University of Mainz; Graduate School of Excellence “Materials Science in Mainz” (MAINZ); Peking University) , F. Schreiber (University of Main) , F. Maccherozzi (Diamond Light Source) , D. Backes (Diamond Light Source) , M. Klaui (University of Konstanz; Graduate School of Excellence “Materials Science in Mainz” (MAINZ); Norwegian University of Science and Technology) , G. Jakob (University of Mainz; Graduate School of Excellence “Materials Science in Mainz” (MAINZ))
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 103

State: Published (Approved)
Published: January 2021
Diamond Proposal Number(s): 23819

Abstract: Tm Fe O 3 (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.

Diamond Keywords: Antiferromagnetism

Subject Areas: Materials, Physics

Instruments: I06-Nanoscience

Added On: 27/01/2021 11:43

Discipline Tags:

Surfaces Quantum Materials Hard condensed matter - electronic properties Physics Materials Science interfaces and thin films

Technical Tags:

Spectroscopy X-ray Absorption Spectroscopy (XAS)