TY - GEN
T1 - Nonreciprocal Magnon Hanle Effect in Antiferromagnetic α-Fe2O3
AU - Gückelhorn, Janine
AU - De-La-Peña, Sebastián
AU - Scheufele, Monika
AU - Grammer, Matthias
AU - Opel, Matthias
AU - Geprägs, Stephan
AU - Cuevas, Juan Carlos
AU - Gross, Rudolf
AU - Huebl, Hans
AU - Kamra, Akashdeep
AU - Althammer, Matthias
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - The precession of the magnon pseudospin about the equilibrium pseudofield, the latter capturing the nature of magnonic eigenexcitations in an antiferromagnet, gives rise to the magnon Hanle effect. Its realization via electrically injected and detected spin transport in an antiferromagnetic insulator demonstrates its high potential for devices and as a convenient probe for magnon eigenmodes and the underlying spin interactions in the antiferromagnet. Here, we observe a nonreciprocity in the Hanle signal measured in α-Fe2O3 using two spatially separated Pt electrodes as spin injector and detector. Interchanging their roles alters the detected magnon spin signal. The recorded difference depends on the applied magnetic field and reverses sign when the signal passes its nominal maximum at the socalled compensation field. Our findings unlock the high potential of antiferromagnetic magnonics towards the realization of electronics-inspired phenomena.
AB - The precession of the magnon pseudospin about the equilibrium pseudofield, the latter capturing the nature of magnonic eigenexcitations in an antiferromagnet, gives rise to the magnon Hanle effect. Its realization via electrically injected and detected spin transport in an antiferromagnetic insulator demonstrates its high potential for devices and as a convenient probe for magnon eigenmodes and the underlying spin interactions in the antiferromagnet. Here, we observe a nonreciprocity in the Hanle signal measured in α-Fe2O3 using two spatially separated Pt electrodes as spin injector and detector. Interchanging their roles alters the detected magnon spin signal. The recorded difference depends on the applied magnetic field and reverses sign when the signal passes its nominal maximum at the socalled compensation field. Our findings unlock the high potential of antiferromagnetic magnonics towards the realization of electronics-inspired phenomena.
KW - Antiferromagnetic Materials
KW - Dzyaloshinskii-Moriya Interaction
KW - Magnonics
KW - Spin Currents
UR - http://www.scopus.com/inward/record.url?scp=85172739571&partnerID=8YFLogxK
U2 - 10.1109/INTERMAGShortPapers58606.2023.10228477
DO - 10.1109/INTERMAGShortPapers58606.2023.10228477
M3 - Conference contribution
AN - SCOPUS:85172739571
T3 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
BT - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023
Y2 - 15 May 2023 through 19 May 2023
ER -